In Milano-Cortina, Johannes Høsflot Klæbo delivered one of the most dominant performances in Winter Olympic history, completing a perfect six-for-six gold medal sweep in the men’s cross-country events. His final victory in the 50km was arguably the most punishing.

Image Source: Emil Iversen, Johannes Hoesflot Klaebo, and Martin Loewstroem Nyenget, all of Team Norway, race away from the filed in the Men's 50km Mass Start Classic at the Milano Cortina 2026 Winter Olympic Games (Alex Pantling/Getty Images)

Klæbo and two Norwegian teammates shattered the field early, setting an unforgiving tempo across the undulating course in Val di Fiemme. On the decisive final climb, Klæbo unleashed his trademark change of speed, breaking clear to claim the final gold medal of the Games.

On the women’s side, Ebba Andersson etched her name into Olympic history, winning the inaugural women’s 50km — the first time female competitors contested the historic distance at the Winter Games. When Andersson surged away from the lead pack, it also offered redemption after her dramatic crash and broke her ski in the team relay, where Sweden fought back to secure silver.

Image Source: Ebba Andersson in the afterglow of winning the Women's 50km at the Milano-Cortina 2026 Olympics (Alex Slitz/Getty Images)

Now we turn from snow to sea.

Image Source: Adam Pretty/Getty Images

Which male and female open water swimmers possess that same relentless engine, tactical patience and late-race firepower? Who could handle 50 kilometres of snow as comfortably as 10 kilometres of open water?

Cast your vote below and back your men's and women's open water endurance champions.