The year 2025 was a remarkable one for Masters swimmers, with a staggering 310 new Masters World Records set across individual and relay events. As participants defied age barriers and showcased their dedication, World Aquatics is proud to celebrate these achievements and the upcoming release of the Top 10 Masters swim caps in collaboration with World Aquatics Global Supplier Partner TYR.
As we reflect on the year in Masters swimming, 2025 stands out as a historic chapter filled with exceptional performances and record-breaking feats. With a total of 310 Masters World Records being broken, this past year we witnessed unprecedented achievements, showcasing the incredible talent and dedication of participants from around the globe.
2025 Masters Swimming Record Breakdown:
- Individual SCM (Short Course Meters): 115
- Individual LCM (Long Course Meters): 115
- Relay LCM: 36
- Relay SCM: 44
Men set 74 records in various categories, while women achieved 41 records in individual events and 65 in relays. Mixed teams also contributed significantly, claiming 14 records in the 50m pool and 21 in the 25m pool.
Notable Achievements
Among the standout performances, Neutral Athlete Mikhail Vekovishchev shone brightly at the World Aquatics Masters Championships in Singapore. He set a Masters World Record in the Men's 50 Butterfly with a time of 23.15, a feat that would have qualified him for the semifinals at the elite 2025 World Aquatics Championships. An Olympic medallist (silver in the Men’s 4x200m Freestyle Relay from the Tokyo 2020 Games), three-time world medallist in 50m pool and a two-time relay world champion at the World Aquatics Swimming Championships (25m), Vekovishchev shows that ambition and a love of swimming continue through the years.
Another extraordinary campaign came from Yonezawa Shoko of Japan in the Women’s 90–94 category, who rewrote the breaststroke standards in both long- and short-course pools. Her 200m Breaststroke short-course performance of 4:32.36 was over 13% faster than the previous Masters World Record, one of the most significant improvements seen in 2025. All told, Shoko set six Masters World Records in 2025: three apiece in both the 50m and 25m pools. A 2009 International Swimming Hall of Fame honouree, Shoko shows that aquatics is a lifelong pursuit, saying, “Nobody who is in masters swimming hides their age…because there are more opportunities as you grow older.”
In the sprint events, ageless wonder Nicholas Santos of Brazil delivered a headline performance in the Men’s 45–49 50m Butterfly, clocking 23.26 in long course — a time that not only surpassed the previous Masters record by nearly seven percent, but also remained competitive against elite open-age benchmarks. This is not surprising, as Santos has a history of making history: he was previously the oldest swimming world champion in the elite ranks ever when he won the 50m butterfly at the 2022 World Aquatics Swimming Championships (25m) in Melbourne, Australia, at age 42 years and 303 days.
Additionally, Aiko Horii made waves in the 95-99 age group, breaking two Masters World Records in backstroke events. She recorded times of 1:02.98 and 2:27.19 in the 50m and 100m backstroke, respectively. For good measure, she also reset the Masters World Record in the 50m freestyle, swimming 57.49 —much respect, Aiko-san.
Masters Worlds Records and Performance Progressions
For the current list of the Masters World Records in the 50m pool, click here. The Masters World Records Individual Progression in long-course metres is available here.
For the current list of Masters World Records in the 25m pool, click here. The Masters World Records Individual Progression in long-course metres is available here.
The current list of Masters World Records in Relay in the 50m pool is available here. The complete list of Masters World Records in Relay in the 25m pool is available here.
Upcoming Masters Highlights
The anticipation builds as World Aquatics prepares to announce the Top 10 Masters swimmers for the 2025 season by the end of April. To honour these top participants, World Aquatics is collaborating with TYR to launch exclusive Masters swim caps.
Coming in May, TYR will be offering for sale on TYR.com and TYR.eu caps to commemorate your masters top ten or masters world record achievement! Wear them, frame them, it’s up to you! Stay tuned for more info on how to order in the coming months. These will be available for 2024, 2025 and into subsequent years.
Celebrate the Journey
As we celebrate these remarkable accomplishments, it's essential to recognise that each record represents not just a number, but the hard work, determination, and passion of these Masters partipants. Their dedication to the sport continues to inspire swimmers of all ages, reminding us that greatness knows no age limits.
Stay tuned for the Top 10 announcement and the unveiling of the special Masters swim caps as we continue to honour the incredible journey of Masters swimming.
Coming Up Next | Competition Dates Announced for the World Aquatics Masters Championships – Budapest 2027
Budapest is set to reaffirm its status as one of the world’s premier hosts of major aquatic events as it prepares to welcome both the World Aquatics Championships and World Aquatics Masters Championships at the same time in 2027. Showcasing Budapest's innovative spirit and access to world-class aquatics facilities, 2027 will mark the first time all elite and masters events at the world championships are held concurrently.
This event unites master-aged participants, with more than 8,000 athletes from over 180 countries expected to compete.
Here are the sport-by-sport competition dates for the World Aquatics Championships – Budapest 2027:
- Artistic Swimming: 26 – 30 June
- Open Water Swimming: 29 – 30 June
- Swimming: 3 – 9 July
- Diving: 5 – 10 July
- Water Polo: 11 – 17 July
For more information about the Championships, check out the latest news here. Further details on competition schedules, ticketing, and event services will be communicated at a later date as preparations for the 2027 Masters World Championships in Budapest continue. Mark your calendars for mid-2026 when ticket information will be released. This will ensure participants and fans do not miss the opportunity to be part of this exciting global event.
The List: All 310 Masters World Records Set in 2025
Long Course | Individual
| Sex | Age Group | Event | Participant | Date Of Swim | Time | Previous WR |
| Women | 95-99 | 50m Backstroke | HORII Aiko | 2025-09-21 | 01:02.98 | 01:14.31 |
| Women | 95-99 | 100m Backstroke | HORII Aiko | 2025-09-18 | 02:27.19 | 02:40.80 |
| Women | 90-94 | 200m Breaststroke | YONEZAWA Shoko | 2025-09-18 | 04:29.58 | 04:53.93 |
| Men | 95-99 | 50m Breaststroke | KLARING Gottfried | 2025-03-08 | 01:04.76 | 01:10.05 |
| Men | 45-49 | 50m Butterfly | SANTOS Nicholas | 2025-05-04 | 23.26 | 24.96 |
| Women | 90-94 | 100m Breaststroke | YONEZAWA Shoko | 2025-08-03 | 02:06.07 | 02:14.59 |
| Women | 90-94 | 50m Breaststroke | YONEZAWA Shoko | 2025-03-08 | 55.70 | 59.40 |
| Women | 95-99 | 100m Freestyle | DICKEY Dorothy | 2025-03-01 | 02:14.29 | 02:22.74 |
| Women | 75-79 | 100m Backstroke | MCCLOSKEY Cecilia | 2025-08-08 | 01:24.20 | 01:28.67 |
| Women | 75-79 | 400m Freestyle | DAVIS Charlotte | 2025-08-08 | 05:53.72 | 06:12.25 |
| Men | 70-74 | 400m Medley | COLELLA Rick | 2025-08-07 | 05:38.72 | 05:55.97 |
| Women | 75-79 | 50m Backstroke | MCCLOSKEY Cecilia | 2025-08-06 | 38.17 | 40.08 |
| Men | 75-79 | 400m Medley | WILSON Joel Ray | 2025-07-11 | 06:17.26 | 06:34.91 |
| Men | 70-74 | 200m Freestyle | COLELLA Rick | 2025-08-09 | 02:16.51 | 02:22.88 |
| Women | 75-79 | 50m Butterfly | DAVIS Charlotte | 2025-05-18 | 37.23 | 38.93 |
| Women | 75-79 | 200m Freestyle | DAVIS Charlotte | 2025-05-17 | 02:47.46 | 02:54.26 |
| Women | 95-99 | 50m Freestyle | HORII Aiko | 2025-09-20 | 57.49 | 59.77 |
| Women | 75-79 | 200m Backstroke | MCCLOSKEY Cecilia | 2025-08-10 | 03:09.61 | 03:16.80 |
| Women | 95-99 | 200m Freestyle | DICKEY Dorothy | 2025-03-01 | 04:52.61 | 05:03.47 |
| Women | 45-49 | 50m Breaststroke | KRKALO Shauna | 2025-08-13 | 32.47 | 33.56 |
| Women | 40-44 | 100m Breaststroke | HUNTER Sally | 2025-08-08 | 01:09.24 | 01:11.49 |
| Women | 95-99 | 800m Freestyle | DICKEY Dorothy | 2025-04-08 | 20:58.62 | 21:39.10 |
| Women | 75-79 | 100m Freestyle | DAVIS Charlotte | 2025-05-18 | 01:14.97 | 01:17.38 |
| Men | 90-94 | 50m Butterfly | NAKAMARU Tetsuo | 2025-08-16 | 52.48 | 54.13 |
| Men | 95-99 | 100m Breaststroke | KLARING Gottfried | 2025-03-08 | 02:35.28 | 02:40.08 |
| Men | 40-44 | 100m Butterfly | KORZENIOWSKI Pawel | 2025-06-01 | 53.76 | 55.29 |
| Men | 35-39 | 200m Breaststroke | FISCHER Brandon | 2025-08-08 | 02:16.38 | 02:20.11 |
| Women | 90-94 | 50m Backstroke | WALDIE Mae | 2025-04-13 | 53.25 | 54.69 |
| Women | 75-79 | 200m Medley | DAVIS Charlotte | 2025-06-22 | 03:16.54 | 03:21.84 |
| Men | 75-79 | 50m Breaststroke | WRIGHT Robert E | 2025-08-08 | 37.05 | 38.01 |
| Men | 90-94 | 100m Breaststroke | HOSOTANI Hirofumi | 2025-08-16 | 01:59.82 | 02:02.91 |
| Women | 75-79 | 100m Freestyle | DAVIS Charlotte | 2025-08-07 | 01:13.13 | 01:14.97 |
| Women | 95-99 | 50m Freestyle | WALLIS Liz | 2025-02-28 | 01:01.72 | 01:03.25 |
| Men | 25-29 | 50m Butterfly | VEKOVISHCHEV Mikhail | 2025-08-10 | 23.15 | 23.71 |
| Women | 85-89 | 50m Breaststroke | TAI Li Hua | 2025-08-13 | 50.73 | 51.83 |
| Women | 75-79 | 50m Butterfly | DAVIS Charlotte | 2025-08-10 | 36.47 | 37.23 |
| Men | 60-64 | 50m Backstroke | RUCK Harald | 2025-08-13 | 29.77 | 30.38 |
| Women | 40-44 | 50m Breaststroke | HUNTER Sally | 2025-08-13 | 31.48 | 32.11 |
| Women | 45-49 | 50m Freestyle | KRKALO Shauna | 2025-08-11 | 26.07 | 26.59 |
| Women | 75-79 | 50m Freestyle | DAVIS Charlotte | 2025-08-08 | 32.96 | 33.61 |
| Women | 55-59 | 100m Backstroke | CORBEN Joanna | 2025-06-15 | 01:08.02 | 01:09.28 |
| Women | 90-94 | 100m Breaststroke | YONEZAWA Shoko | 2025-09-20 | 02:03.80 | 02:06.07 |
| Men | 50-54 | 50m Freestyle | HARA Hideaki | 2025-06-08 | 23.67 | 24.08 |
| Men | 55-59 | 50m Backstroke | ATASAY Serkan | 2025-02-09 | 28.54 | 29.03 |
| Men | 25-29 | 100m Butterfly | VEKOVISHCHEV Mikhail | 2025-08-11 | 52.20 | 53.09 |
| Women | 95-99 | 50m Freestyle | DICKEY Dorothy | 2025-03-01 | 01:00.69 | 01:01.72 |
| Men | 70-74 | 200m Butterfly | NORBERG Michael | 2025-07-12 | 02:44.59 | 02:47.17 |
| Women | 95-99 | 50m Freestyle | DICKEY Dorothy | 2025-04-10 | 59.77 | 01:00.69 |
| Women | 80-84 | 100m Backstroke | OHLSSON Margit | 2025-08-12 | 01:37.75 | 01:39.25 |
| Men | 55-59 | 100m Butterfly | ATASAY Serkan | 2025-02-09 | 59.65 | 01:00.56 |
| Women | 95-99 | 100m Freestyle | DICKEY Dorothy | 2025-04-09 | 02:12.30 | 02:14.29 |
| Men | 75-79 | 100m Breaststroke | FUJII Toshiharu | 2025-08-08 | 01:25.36 | 01:26.64 |
| Men | 55-59 | 50m Butterfly | ATASAY Serkan | 2025-02-07 | 26.08 | 26.47 |
| Women | 75-79 | 50m Freestyle | JEFFREY Janette | 2025-04-12 | 33.61 | 34.11 |
| Women | 90-94 | 50m Breaststroke | YONEZAWA Shoko | 2025-09-19 | 54.45 | 55.25 |
| Men | 35-39 | 50m Freestyle | RAZETO Stefano | 2025-05-31 | 22.40 | 22.72 |
| Women | 55-59 | 200m Backstroke | CORBEN Joanna | 2025-06-13 | 02:28.90 | 02:30.97 |
| Women | 55-59 | 200m Butterfly | BOSISIO Franca | 2025-08-12 | 02:33.66 | 02:35.79 |
| Men | 60-64 | 200m Butterfly | CAPPELLETTI Mauro | 2025-05-25 | 02:21.71 | 02:23.52 |
| Men | 60-64 | 50m Butterfly | LA PALME Marc | 2025-08-10 | 27.23 | 27.57 |
| Men | 35-39 | 50m Butterfly | RAZETO Stefano | 2025-05-30 | 23.74 | 24.03 |
| Men | 55-59 | 200m Medley | GRUNER Frank | 2025-08-11 | 02:19.03 | 02:20.67 |
| Women | 95-99 | 100m Backstroke | DICKEY Dorothy | 2025-03-01 | 02:40.80 | 02:42.67 |
| Women | 60-64 | 200m Butterfly | PLANT Mary | 2025-08-16 | 02:39.31 | 02:41.03 |
| Men | 50-54 | 100m Breaststroke | MINONNE Marco | 2025-08-08 | 01:05.48 | 01:06.12 |
| Women | 75-79 | 200m Medley | DAVIS Charlotte | 2025-08-09 | 03:14.64 | 03:16.54 |
| Men | 75-79 | 100m Breaststroke | FUJII Toshiharu | 2025-06-01 | 01:26.64 | 01:27.47 |
| Men | 40-44 | 50m Breaststroke | MURPHY Barry | 2025-03-08 | 28.57 | 28.84 |
| Women | 35-39 | 200m Breaststroke | CELLI Elisa | 2025-05-10 | 02:34.00 | 02:35.40 |
| Men | 55-59 | 200m Freestyle | KALAUS Valter | 2025-08-10 | 02:02.91 | 02:04.01 |
| Women | 25-29 | 200m Medley | RAMAEL Maaike | 2025-08-11 | 02:19.54 | 02:20.71 |
| Women | 35-39 | 200m Medley | BALSANO Veronica | 2025-05-02 | 02:19.59 | 02:20.75 |
| Men | 65-69 | 100m Breaststroke | GUTHRIE David | 2025-08-08 | 01:14.16 | 01:14.77 |
| Women | 90-94 | 50m Breaststroke | YONEZAWA Shoko | 2025-08-03 | 55.25 | 55.70 |
| Men | 45-49 | 50m Backstroke | LOTANO Daniel | 2025-08-07 | 27.35 | 27.56 |
| Women | 40-44 | 100m Breaststroke | HUNTER Sally | 2025-05-03 | 01:11.74 | 01:12.29 |
| Men | 65-69 | 50m Breaststroke | KAGAMI Yoshihide | 2025-08-03 | 33.05 | 33.30 |
| Men | 70-74 | 1500m Freestyle | BAUGHMAN Richard | 2025-08-06 | 20:17.22 | 20:26.12 |
| Women | 40-44 | 200m Breaststroke | HEIDEMANN Nicole | 2025-08-12 | 02:37.41 | 02:38.44 |
| Men | 40-44 | 50m Breaststroke | MURPHY Barry | 2025-06-13 | 28.39 | 28.57 |
| Women | 30-34 | 50m Freestyle | GUY Rebecca | 2025-06-14 | 25.33 | 25.49 |
| Women | 55-59 | 50m Breaststroke | VITALONI Sabina | 2025-08-13 | 35.37 | 35.59 |
| Women | 55-59 | 100m Backstroke | CORBEN Joanna | 2025-01-18 | 01:09.28 | 01:09.69 |
| Women | 40-44 | 50m Breaststroke | HEIDEMANN Nicole | 2025-05-31 | 32.11 | 32.30 |
| Men | 35-39 | 400m Medley | HIHARA Shogo | 2025-12-14 | 04:35.08 | 04:36.66 |
| Women | 55-59 | 200m Backstroke | CORBEN Joanna | 2025-03-01 | 02:30.97 | 02:31.79 |
| Men | 70-74 | 50m Butterfly | EHMKE Fred | 2025-07-13 | 29.69 | 29.84 |
| Men | 45-49 | 50m Butterfly | SANTOS Nicholas | 2025-11-02 | 23.15 | 23.26 |
| Men | 60-64 | 100m Butterfly | LA PALME Marc | 2025-06-25 | 01:01.71 | 01:02.00 |
| Men | 55-59 | 200m Backstroke | MAROCCO Eduardo | 2025-05-02 | 02:19.73 | 02:20.38 |
| Men | 35-39 | 100m Freestyle | OWEN Cameron | 2025-01-24 | 50.55 | 50.78 |
| Men | 65-69 | 50m Butterfly | THOMPSON Dan | 2025-08-10 | 28.14 | 28.26 |
| Men | 35-39 | 400m Freestyle | HIHARA Shogo | 2025-09-21 | 03:59.79 | 04:00.78 |
| Women | 65-69 | 50m Breaststroke | GARAY Judy | 2025-08-13 | 39.75 | 39.91 |
| Women | 40-44 | 50m Breaststroke | HUNTER Sally | 2025-05-04 | 32.30 | 32.42 |
| Men | 60-64 | 200m Backstroke | FRENTSOS Jerome A | 2025-08-10 | 02:25.61 | 02:26.12 |
| Women | 40-44 | 100m Breaststroke | HEIDEMANN Nicole | 2025-05-30 | 01:11.49 | 01:11.74 |
| Women | 55-59 | 200m Butterfly | BOSISIO Franca | 2025-06-26 | 02:35.79 | 02:36.33 |
| Men | 70-74 | 100m Freestyle | COLELLA Rick | 2025-08-07 | 01:02.80 | 01:03.01 |
| Men | 55-59 | 200m Backstroke | GRUNER Frank | 2025-03-15 | 02:20.38 | 02:20.83 |
| Men | 75-79 | 50m Breaststroke | FUJII Toshiharu | 2025-06-01 | 38.01 | 38.12 |
| Women | 55-59 | 50m Freestyle | SADLER Helen | 2025-06-15 | 27.86 | 27.94 |
| Women | 55-59 | 100m Breaststroke | VITALONI Sabina | 2025-08-08 | 01:19.69 | 01:19.90 |
| Women | 40-44 | 50m Butterfly | STAMPFLI Carla | 2025-08-10 | 28.24 | 28.31 |
| Women | 35-39 | 100m Freestyle | BALSANO Veronica | 2025-05-03 | 57.24 | 57.38 |
| Women | 25-29 | 400m Freestyle | BOY Lea | 2025-07-05 | 04:15.99 | 04:16.61 |
| Men | 35-39 | 100m Backstroke | HOCKIN BRUSQUETTI Charles Daniel | 2025-08-12 | 56.46 | 56.59 |
| Women | 75-79 | 800m Freestyle | BOER-BUYS Conny | 2025-05-11 | 12:57.48 | 12:58.94 |
| Women | 70-74 | 50m Butterfly | RODGERS Leigh | 2025-04-10 | 34.37 | 34.43 |
| Women | 45-49 | 100m Backstroke | MIHALIK Jennifer | 2025-08-02 | 01:06.97 | 01:07.04 |
| Women | 35-39 | 200m Freestyle | BALSANO Veronica | 2025-05-04 | 02:05.38 | 02:05.50 |
| Men | 60-64 | 50m Backstroke | DOCKHORN Thomas | 2025-06-01 | 30.38 | 30.40 |
| Men | 30-34 | 100m Backstroke | MAEJIMA Ryota | 2025-07-20 | 55.90 | 55.93 |
| Men | 65-69 | 50m Freestyle | BARNES Brent | 2025-08-14 | 26.19 | 26.19 |
| Women | 40-44 | 400m Medley | FUJINO Maiko | 2025-08-10 | 04:58.01 | 04:58.01 |
Short Course | Individual
| Sex | Age Group | Event | Participant | Date Of Swim | Time | Previous WR |
| Women | 90-94 | 200m Breaststroke | YONEZAWA Shoko | 2025-06-15 | 04:32.36 | 05:15.24 |
| Women | 90-94 | 100m Breaststroke | YONEZAWA Shoko | 2025-01-18 | 02:00.45 | 02:13.42 |
| Women | 95-99 | 50m Backstroke | HORII Aiko | 2025-06-01 | 01:06.02 | 01:12.24 |
| Men | 90-94 | 50m Butterfly | NAKAMARU Tetsuo | 2025-02-24 | 50.18 | 54.10 |
| Women | 90-94 | 50m Breaststroke | YONEZAWA Shoko | 2025-01-26 | 55.65 | 59.04 |
| Women | 75-79 | 200m Freestyle | DAVIS Charlotte | 2025-03-08 | 02:42.38 | 02:51.46 |
| Men | 95-99 | 100m Medley | KLARING Gottfried | 2025-03-01 | 02:31.08 | 02:39.39 |
| Women | 75-79 | 100m Freestyle | DAVIS Charlotte | 2025-03-08 | 01:11.92 | 01:15.87 |
| Men | 70-74 | 200m Butterfly | NORBERG Michael | 2025-12-13 | 02:37.01 | 02:45.30 |
| Women | 30-34 | 100m Freestyle | WASICK Katarzyna | 2025-12-14 | 52.76 | 54.75 |
| Men | 40-44 | 200m Backstroke | NEAD Kevin T | 2025-11-16 | 01:59.51 | 02:03.84 |
| Women | 90-94 | 50m Breaststroke | YONEZAWA Shoko | 2025-03-16 | 53.78 | 55.65 |
| Women | 90-94 | 50m Backstroke | WALDIE Mae | 2025-04-25 | 53.78 | 55.59 |
| Women | 75-79 | 100m Backstroke | MCCLOSKEY Cecilia | 2025-01-31 | 01:23.61 | 01:26.40 |
| Women | 75-79 | 50m Butterfly | DAVIS Charlotte | 2025-11-02 | 36.97 | 38.13 |
| Men | 75-79 | 400m Medley | WILSON Joel Ray | 2025-10-03 | 06:08.99 | 06:20.44 |
| Men | 55-59 | 50m Butterfly | ATASAY Serkan | 2025-11-10 | 25.56 | 26.28 |
| Women | 30-34 | 50m Freestyle | WASICK Katarzyna | 2025-12-13 | 23.68 | 24.30 |
| Women | 75-79 | 50m Backstroke | MCCLOSKEY Cecilia | 2025-02-01 | 38.04 | 39.01 |
| Men | 45-49 | 100m Medley | KAWAMOTO Kohei | 2025-04-06 | 56.27 | 57.68 |
| Women | 75-79 | 50m Freestyle | DAVIS Charlotte | 2025-11-02 | 33.21 | 34.04 |
| Men | 55-59 | 50m Backstroke | KING Doug | 2025-11-02 | 27.19 | 27.86 |
| Men | 35-39 | 200m Backstroke | MORITA Junichi | 2025-02-16 | 01:56.75 | 01:59.58 |
| Men | 90-94 | 50m Butterfly | NAKAMARU Tetsuo | 2025-09-06 | 49.00 | 50.18 |
| Women | 95-99 | 100m Freestyle | HORII Aiko | 2025-06-01 | 02:13.73 | 02:16.63 |
| Women | 30-34 | 200m Freestyle | WASICK Katarzyna | 2025-12-11 | 01:58.30 | 02:00.73 |
| Men | 40-44 | 200m Freestyle | GRANT Andy | 2025-12-07 | 01:47.73 | 01:49.86 |
| Women | 25-29 | 100m Backstroke | PEDA Paulina | 2025-12-12 | 58.78 | 59.90 |
| Men | 55-59 | 100m Freestyle | HOCHSTEIN Erik | 2025-10-05 | 53.32 | 54.32 |
| Women | 65-69 | 50m Breaststroke | GARAY Judy | 2025-04-27 | 38.19 | 38.90 |
| Men | 55-59 | 200m Medley | GRUNER Frank | 2025-11-28 | 02:11.84 | 02:14.15 |
| Men | 35-39 | 200m Breaststroke | FISCHER Brandon | 2025-12-05 | 02:10.59 | 02:12.78 |
| Men | 85-89 | 200m Medley | SHINKAI Masaru | 2025-04-06 | 03:32.91 | 03:36.41 |
| Men | 70-74 | 400m Medley | WOLF Tom | 2025-01-31 | 05:41.20 | 05:46.48 |
| Men | 55-59 | 50m Freestyle | HOCHSTEIN Erik | 2025-10-05 | 24.01 | 24.37 |
| Women | 95-99 | 200m Freestyle | DICKEY Dorothy | 2025-08-30 | 04:51.76 | 04:56.12 |
| Men | 40-44 | 50m Butterfly | HASEGAWA Takuya | 2025-01-18 | 23.55 | 23.90 |
| Men | 40-44 | 100m Butterfly | KORZENIOWSKI Pawel | 2025-12-12 | 52.38 | 53.10 |
| Men | 60-64 | 200m Butterfly | CAPPELLETTI Mauro | 2025-02-23 | 02:18.39 | 02:20.27 |
| Men | 65-69 | 100m Butterfly | THOMPSON Dan | 2025-04-25 | 01:03.01 | 01:03.85 |
| Women | 60-64 | 50m Freestyle | FUZZATI Marie Therese | 2025-03-06 | 28.15 | 28.50 |
| Women | 75-79 | 100m Medley | MCCLOSKEY Cecilia | 2025-02-01 | 01:26.91 | 01:27.96 |
| Men | 95-99 | 50m Breaststroke | KLARING Gottfried | 2025-03-01 | 01:06.33 | 01:07.12 |
| Men | 95-99 | 100m Breaststroke | KLARING Gottfried | 2025-03-01 | 02:30.16 | 02:31.77 |
| Men | 75-79 | 400m Medley | KERNS Hubie | 2025-01-31 | 06:22.02 | 06:26.09 |
| Men | 40-44 | 100m Breaststroke | KOBAYASHI Ryo | 2025-06-29 | 01:00.33 | 01:00.97 |
| Men | 60-64 | 100m Medley | FRENTSOS Jerome A | 2025-06-02 | 01:02.00 | 01:02.65 |
| Men | 55-59 | 100m Medley | GRUNER Frank | 2025-11-08 | 01:00.15 | 01:00.75 |
| Women | 60-64 | 200m Butterfly | LOWENSTEYN Ilka | 2025-05-18 | 02:39.81 | 02:41.25 |
| Men | 40-44 | 100m Butterfly | HASEGAWA Takuya | 2025-01-18 | 53.10 | 53.56 |
| Men | 55-59 | 100m Backstroke | GRUNER Frank | 2025-11-30 | 01:00.27 | 01:00.78 |
| Men | 60-64 | 100m Medley | LA PALME Marc | 2025-04-27 | 01:02.65 | 01:03.17 |
| Men | 35-39 | 400m Freestyle | MODROV Drew | 2025-11-09 | 03:55.89 | 03:57.77 |
| Women | 80-84 | 50m Backstroke | MUNNS Clary | 2025-05-17 | 42.15 | 42.48 |
| Women | 65-69 | 100m Breaststroke | OKADA Tomoko | 2025-01-18 | 01:27.29 | 01:27.95 |
| Women | 90-94 | 100m Breaststroke | YONEZAWA Shoko | 2025-04-19 | 01:59.55 | 02:00.45 |
| Men | 40-44 | 100m Breaststroke | KOBAYASHI Ryo | 2025-04-20 | 01:00.97 | 01:01.42 |
| Men | 60-64 | 400m Medley | FRENTSOS Jerome A | 2025-06-04 | 05:02.36 | 05:04.54 |
| Women | 55-59 | 50m Freestyle | SADLER Helen | 2025-10-26 | 27.23 | 27.42 |
| Women | 30-34 | 100m Backstroke | BARTHOLOMEW Courtney | 2025-12-05 | 58.98 | 59.39 |
| Women | 65-69 | 100m Breaststroke | MACDONALD Sarah | 2025-04-26 | 01:26.34 | 01:26.94 |
| Women | 65-69 | 50m Freestyle | MACDONALD Sarah | 2025-04-26 | 29.10 | 29.30 |
| Men | 65-69 | 50m Butterfly | THOMPSON Dan | 2025-04-26 | 27.75 | 27.94 |
| Women | 40-44 | 400m Freestyle | CASSON Sophie | 2025-10-25 | 04:18.86 | 04:20.60 |
| Men | 60-64 | 1500m Freestyle | DELLBRUGGE Karsten | 2025-01-18 | 17:27.56 | 17:34.51 |
| Men | 85-89 | 100m Medley | YABE Akihiko | 2025-11-02 | 01:33.70 | 01:34.31 |
| Men | 80-84 | 50m Butterfly | ABRAHAMS Richard | 2025-01-25 | 34.06 | 34.27 |
| Men | 60-64 | 200m Medley | FRENTSOS Jerome A | 2025-05-17 | 02:18.46 | 02:19.31 |
| Men | 30-34 | 100m Breaststroke | SHIMAZAKI Shotaro | 2025-04-13 | 57.78 | 58.13 |
| Women | 40-44 | 800m Freestyle | FUJINO Maiko | 2025-03-15 | 08:52.15 | 08:55.34 |
| Men | 85-89 | 100m Medley | YABE Akihiko | 2025-06-01 | 01:34.31 | 01:34.85 |
| Men | 40-44 | 100m Medley | ASO Yoshihiro | 2025-04-20 | 55.93 | 56.22 |
| Men | 50-54 | 50m Freestyle | HARA Hideaki | 2025-04-13 | 23.24 | 23.36 |
| Men | 40-44 | 100m Medley | ASO Yoshihiro | 2025-02-24 | 56.47 | 56.76 |
| Men | 60-64 | 200m Medley | FRENTSOS Jerome A | 2025-06-01 | 02:17.77 | 02:18.46 |
| Men | 40-44 | 200m Butterfly | KAKIZOE Takefumi | 2025-04-05 | 02:02.39 | 02:02.97 |
| Men | 45-49 | 50m Backstroke | LOTANO Daniel | 2025-02-01 | 25.61 | 25.73 |
| Men | 30-34 | 800m Freestyle | IPSEN Anton | 2025-11-23 | 08:04.40 | 08:06.56 |
| Men | 40-44 | 100m Medley | KAKIZOE Takefumi | 2025-04-12 | 56.22 | 56.47 |
| Women | 40-44 | 400m Freestyle | CASSON Sophie | 2025-07-26 | 04:20.60 | 04:21.75 |
| Women | 80-84 | 100m Butterfly | MUNNS Clary | 2025-10-12 | 01:49.62 | 01:50.08 |
| Men | 75-79 | 400m Medley | ARMSTRONG Ron | 2025-04-27 | 06:20.44 | 06:22.02 |
| Men | 55-59 | 200m Freestyle | GRUNER Frank | 2025-01-19 | 01:58.60 | 01:59.08 |
| Women | 65-69 | 100m Breaststroke | MAREB Karen M | 2025-02-01 | 01:26.94 | 01:27.29 |
| Men | 50-54 | 50m Freestyle | HARA Hideaki | 2025-06-01 | 23.11 | 23.20 |
| Men | 65-69 | 50m Butterfly | THOMPSON Dan | 2025-05-16 | 27.65 | 27.75 |
| Men | 50-54 | 100m Freestyle | HARA Hideaki | 2025-06-01 | 51.02 | 51.20 |
| Women | 85-89 | 50m Butterfly | SCHULZ Christel | 2025-03-01 | 51.22 | 51.40 |
| Men | 60-64 | 50m Backstroke | MCKINNON Peter | 2025-04-27 | 29.09 | 29.19 |
| Men | 60-64 | 50m Backstroke | MCKINNON Peter | 2025-04-25 | 29.19 | 29.29 |
| Women | 25-29 | 50m Breaststroke | CLARK Imogen | 2025-10-25 | 29.96 | 30.06 |
| Men | 55-59 | 50m Butterfly | SARETSKY Barry | 2025-05-17 | 26.28 | 26.36 |
| Women | 55-59 | 200m Backstroke | CORBEN Joanna | 2025-04-27 | 02:24.83 | 02:25.27 |
| Men | 55-59 | 400m Medley | GRUNER Frank | 2025-11-22 | 04:49.07 | 04:49.86 |
| Men | 45-49 | 100m Backstroke | KAWAMOTO Kohei | 2025-04-06 | 56.85 | 57.00 |
| Women | 70-74 | 50m Freestyle | NOYES Penny P | 2025-10-10 | 30.47 | 30.55 |
| Men | 35-39 | 200m Freestyle | HIHARA Shogo | 2025-01-19 | 01:48.08 | 01:48.36 |
| Men | 75-79 | 100m Medley | YOBIKO Hiroyuki | 2025-03-02 | 01:17.32 | 01:17.52 |
| Men | 40-44 | 50m Backstroke | LAZARONE Jander | 2025-09-14 | 25.43 | 25.48 |
| Men | 40-44 | 100m Breaststroke | KOBAYASHI Ryo | 2025-11-16 | 01:00.22 | 01:00.33 |
| Men | 50-54 | 200m Butterfly | NOMURA Eiji | 2025-06-29 | 02:07.43 | 02:07.66 |
| Men | 50-54 | 50m Freestyle | HARA Hideaki | 2025-05-25 | 23.20 | 23.24 |
| Men | 85-89 | 100m Breaststroke | SHINKAI Masaru | 2025-06-29 | 01:37.69 | 01:37.83 |
| Men | 60-64 | 100m Backstroke | MCKINNON Peter | 2025-04-27 | 01:03.06 | 01:03.15 |
| Men | 75-79 | 100m Breaststroke | FUJII Toshiharu | 2025-05-11 | 01:24.15 | 01:24.27 |
| Men | 65-69 | 100m Breaststroke | GUTHRIE David | 2025-11-16 | 01:11.72 | 01:11.82 |
| Women | 75-79 | 50m Butterfly | MCCLOSKEY Cecilia | 2025-02-02 | 38.13 | 38.17 |
| Men | 60-64 | 100m Butterfly | LA PALME Marc | 2025-12-12 | 01:00.14 | 01:00.20 |
| Men | 50-54 | 100m Freestyle | HARA Hideaki | 2025-04-13 | 51.20 | 51.25 |
| Men | 40-44 | 50m Freestyle | DUDA Andrejs | 2025-12-12 | 22.37 | 22.39 |
| Men | 30-34 | 100m Butterfly | OZEKI Bruno Kenji | 2025-04-12 | 52.36 | 52.40 |
| Women | 60-64 | 50m Freestyle | FUZZATI Marie Therese | 2025-03-22 | 28.13 | 28.15 |
| Men | 60-64 | 100m Medley | TRAVAINI Carlo Arturo | 2025-01-12 | 01:03.17 | 01:03.20 |
| Women | 60-64 | 50m Freestyle | SAPPEY Collette H | 2025-12-06 | 28.12 | 28.13 |
| Men | 30-34 | 50m Breaststroke | SHIMAZAKI Shotaro | 2025-06-01 | 26.60 | 26.60 |
Long Course | Relays
| Sex | Age Group | Event | Team | Date Of Swim | Time | Previous WR |
| Men | 360-399 | 4x50m Medley | SUNWAY YOKOHAMA | 2025-03-08 | 03:42.78 | 04:13.40 |
| Men | 360-399 | 4x100m Freestyle | SSV LEUTZSCH | 2025-05-30 | 08:04.76 | 09:03.44 |
| Mixed | 240-279 | 4x50m Medley | ACQUA 1 VILLAGE | 2025-06-27 | 02:03.46 | 02:07.56 |
| Women | 120-159 | 4x100m Medley | SWIM CLOVER | 2025-03-08 | 04:26.99 | 04:35.76 |
| Mixed | 320-359 | 4x100m Medley | SUNWAY YOKOHAMA | 2025-03-09 | 07:04.62 | 07:17.49 |
| Mixed | 240-279 | 4x100m Freestyle | ACQUA 1 VILLAGE | 2025-06-02 | 04:13.66 | 04:19.89 |
| Mixed | 120-159 | 4x100m Medley | LINX RACING TEAM | 2025-03-09 | 04:09.37 | 04:14.83 |
| Women | 120-159 | 4x200m Freestyle | MIDDLE QUEENS | 2025-08-16 | 08:59.40 | 09:10.37 |
| Mixed | 120-159 | 4x100m Freestyle | QUEENDOM | 2025-06-07 | 03:44.03 | 03:48.37 |
| Men | 160-199 | 4x100m Medley | DIABLO | 2025-03-08 | 03:56.70 | 04:01.27 |
| Mixed | 240-279 | 4x100m Medley | ACQUA 1 VILLAGE | 2025-06-02 | 04:39.51 | 04:44.76 |
| Women | 120-159 | 4x50m Freestyle | I.N.TIGER | 2025-09-14 | 01:47.11 | 01:49.03 |
| Men | 200-239 | 4x200m Freestyle | Gremio Nautico Uniro | 2025-05-01 | 08:29.35 | 08:38.24 |
| Mixed | 240-279 | 4x200m Freestyle | ACQUA 1 VILLAGE | 2025-05-17 | 09:26.59 | 09:35.54 |
| Women | 280-319 | 4x100m Medley | Black Country 'n' Potteries | 2025-03-16 | 06:12.16 | 06:17.26 |
| Women | 280-319 | 4x100m Freestyle | Black Country and Potteries | 2025-06-13 | 05:04.66 | 05:08.34 |
| Men | 120-159 | 4x50m Freestyle | NAB | 2025-08-14 | 01:31.94 | 01:32.84 |
| Mixed | 320-359 | 4x100m Freestyle | SPL KANI | 2025-10-26 | 06:04.10 | 06:07.33 |
| Mixed | 120-159 | 4x200m Freestyle | QUEENDOM | 2025-06-08 | 08:20.79 | 08:25.05 |
| Men | 100-119 | 4x50m Medley | Gold Swim Masters | 2025-03-29 | 01:40.95 | 01:41.78 |
| Men | 160-199 | 4x100m Freestyle | TNT | 2025-05-02 | 03:36.99 | 03:38.60 |
| Men | 160-199 | 4x50m Medley | FREAKERS | 2025-12-14 | 01:44.30 | 01:44.93 |
| Men | 100-119 | 4x50m Freestyle | Stowarzyszenie | 2025-08-14 | 01:31.40 | 01:31.95 |
| Women | 280-319 | 4x200m Freestyle | Black Country 'n' Potteries | 2025-03-16 | 11:41.75 | 11:45.91 |
| Men | 160-199 | 4x100m Medley | FRONTIER RC | 2025-07-27 | 03:55.39 | 03:56.70 |
| Mixed | 120-159 | 4x100m Freestyle | LINX RACING TEAM | 2025-03-08 | 03:48.84 | 03:49.88 |
| Men | 160-199 | 4x50m Medley | DIABLO | 2025-03-08 | 01:45.01 | 01:45.47 |
| Mixed | 100-119 | 4x50m Freestyle | Lucky Splash | 2025-08-14 | 01:38.19 | 01:38.55 |
| Mixed | 240-279 | 4x50m Freestyle | ACQUA 1 VILLAGE | 2025-06-29 | 01:52.20 | 01:52.45 |
| Mixed | 120-159 | 4x100m Freestyle | Woking | 2025-03-22 | 03:48.37 | 03:48.84 |
| Mixed | 100-119 | 4x100m Freestyle | KLAB SPORT | 2025-01-11 | 03:48.38 | 03:48.68 |
| Men | 200-239 | 4x100m Medley | ZENITH | 2025-07-20 | 04:13.53 | 04:13.76 |
| Women | 100-119 | 4x50m Medley | SWIM CLOVER | 2025-03-08 | 01:59.95 | 02:00.05 |
| Men | 160-199 | 4x50m Medley | FRONTIER RC | 2025-09-23 | 01:44.93 | 01:45.01 |
| Men | 120-159 | 4x50m Medley | NAB 120-159 C | 2025-08-14 | 01:42.00 | 01:42.06 |
| Women | 240-279 | 4x100m Medley | KANA KANA | 2025-03-08 | 05:18.90 | 05:19.05 |
Short Course | Relays
| Sex | Age Group | Event | Team | Date Of Swim | Time | Previous WR |
| Men | 360-399 | 4x50m Medley | SUNWAY YOKOHAMA | 2025-02-24 | 03:39.21 | 04:15.49 |
| Women | 280-319 | 4x200m Freestyle | SARASOTA SHARKS MASTERS | 2025-01-31 | 11:11.77 | 11:54.09 |
| Mixed | 100-119 | 4x200m Freestyle | Okehampton SC | 2025-10-24 | 07:53.01 | 08:14.19 |
| Mixed | 280-319 | 4x200m Freestyle | SARASOTA SHARKS | 2025-11-15 | 10:13.23 | 10:38.15 |
| Mixed | 240-279 | 4x100m Medley | ACQUA 1 VILLAGE | 2025-02-09 | 04:30.77 | 04:40.29 |
| Mixed | 320-359 | 4x200m Freestyle | SPL KANI | 2025-06-29 | 13:39.30 | 14:06.32 |
| Mixed | 240-279 | 4x200m Freestyle | ACQUA 1 VILLAGE | 2025-01-12 | 09:10.03 | 09:25.75 |
| Mixed | 100-119 | 4x50m Freestyle | Okehampton SC | 2025-10-24 | 01:36.14 | 01:38.76 |
| Women | 120-159 | 4x100m Medley | SWIM CLOVER | 2025-10-12 | 04:18.91 | 04:24.80 |
| Mixed | 120-159 | 4x50m Freestyle | Azs Awf Katowice | 2025-12-10 | 01:35.72 | 01:37.51 |
| Men | 120-159 | 4x50m Medley | GLOBAL KIGYO AQUATICS | 2025-04-13 | 01:36.75 | 01:38.46 |
| Mixed | 100-119 | 4x50m Medley | Okehampton SC | 2025-10-25 | 01:43.86 | 01:45.63 |
| Men | 160-199 | 4x100m Medley | FRONTIER RC | 2025-05-11 | 03:44.27 | 03:47.97 |
| Mixed | 240-279 | 4x100m Freestyle | ACQUA 1 VILLAGE | 2025-02-08 | 04:08.64 | 04:12.66 |
| Women | 280-319 | 4x50m Freestyle | BC&P Masters | 2025-10-26 | 02:12.37 | 02:14.25 |
| Mixed | 240-279 | 4x50m Medley | ACQUA 1 VILLAGE | 2025-02-16 | 02:03.09 | 02:04.82 |
| Men | 100-119 | 4x50m Freestyle | Okehampton SC | 2025-10-26 | 01:29.32 | 01:30.57 |
| Men | 160-199 | 4x50m Medley | THE STAR | 2025-04-20 | 01:41.29 | 01:42.65 |
| Men | 100-119 | 4x100m Freestyle | Okehampton SC | 2025-10-25 | 03:18.10 | 03:20.60 |
| Mixed | 120-159 | 4x100m Freestyle | Okehampton SC | 2025-10-25 | 03:33.46 | 03:35.95 |
| Women | 280-319 | 4x100m Freestyle | BC&P Masters | 2025-10-25 | 04:59.59 | 05:03.06 |
| Men | 100-119 | 4x100m Medley | Okehampton SC | 2025-10-24 | 03:36.74 | 03:39.19 |
| Men | 160-199 | 4x50m Freestyle | FREAKERS | 2025-06-15 | 01:31.78 | 01:32.77 |
| Mixed | 240-279 | 4x50m Freestyle | ACQUA 1 VILLAGE | 2025-04-06 | 01:50.87 | 01:52.06 |
| Mixed | 200-239 | 4x50m Freestyle | THE STAR | 2025-02-24 | 01:44.22 | 01:45.30 |
| Women | 200-239 | 4x100m Freestyle | TOROKBALINTI SC | 2025-02-08 | 04:14.40 | 04:17.02 |
| Men | 160-199 | 4x50m Medley | FREAKERS | 2025-06-15 | 01:40.24 | 01:41.20 |
| Mixed | 200-239 | 4x100m Freestyle | Woking Swimming Club | 2025-10-25 | 03:52.98 | 03:54.98 |
| Mixed | 120-159 | 4x50m Medley | QUEENDOM | 2025-02-24 | 01:46.39 | 01:47.24 |
| Mixed | 280-319 | 4x100m Freestyle | SARASOTA SHARKS MASTERS | 2025-02-02 | 04:38.08 | 04:40.10 |
| Men | 240-279 | 4x100m Medley | THE AQUA JEMS | 2025-04-05 | 04:18.26 | 04:19.86 |
| Mixed | 200-239 | 4x50m Freestyle | Woking SC | 2025-10-24 | 01:43.64 | 01:44.22 |
| Mixed | 280-319 | 4x200m Freestyle | EIAI CLUB | 2025-05-17 | 10:38.15 | 10:41.53 |
| Men | 100-119 | 4x50m Medley | Okehampton SC | 2025-10-25 | 01:37.79 | 01:38.29 |
| Mixed | 200-239 | 4x100m Freestyle | Woking SC | 2025-09-27 | 03:54.98 | 03:56.10 |
| Men | 120-159 | 4x50m Freestyle | MTRST | 2025-04-12 | 01:29.88 | 01:30.19 |
| Women | 100-119 | 4x100m Freestyle | TRAFFORD METRO | 2025-10-25 | 03:54.30 | 03:55.08 |
| Women | 100-119 | 4x100m Freestyle | SWIM CLOVER | 2025-10-12 | 03:55.08 | 03:55.76 |
| Mixed | 120-159 | 4x50m Medley | Spartans | 2025-11-16 | 01:46.11 | 01:46.39 |
| Women | 160-199 | 4x100m Medley | TRAFFORD METRO | 2025-10-24 | 04:28.29 | 04:28.97 |
| Mixed | 160-199 | 4x50m Medley | KACHOSUIGETSU | 2025-06-15 | 01:50.22 | 01:50.35 |
| Men | 160-199 | 4x50m Medley | DIABLO | 2025-06-01 | 01:41.20 | 01:41.29 |
| Men | 100-119 | 4x50m Freestyle | Fullerton Fast | 2025-11-15 | 01:29.28 | 01:29.32 |
| Women | 120-159 | 4x200m Freestyle | LUCIA | 2025-05-17 | 08:42.23 | 08:42.32 |