Event
The Antarctic Ice Ultra™ is the ultimate ultramarathon on the frozen continent, offering distances of 50k, 81k (50-Mile), 100k, and 100-Mile, with separate male and female divisions. In addition, participants can choose to run a half marathon or full marathon, or join forces in the 24-hour Relay Race as a team.
Key Facts: The Antarctic Ice Ultra & Ultra-Running in Antarctica
The event takes place at the Schirmacher Oasis, located on the Princess Astrid Coast in Queen Maud Land, East Antarctica. The course lies between the vast Antarctic Ice Sheet and the Novolazarevskaya (Novo) Ice Shelf.
Between 2005 and 2017, and again in 2024, a total of 57 men and 8 women completed the 100k in Antarctica as part of the Antarctic Ice Marathon & 100k, a sister event to the Antarctic Ice Ultra.
In the 2024 Antarctic Ice Marathon & 100k, John Armbrust (USA) finished 50k in 6:30:59 (6 hours 30 minutes 59 seconds).
In the 2017 World Marathon Challenge, Nahilia Hernandez (CUB/MEX) completed 50k in 5:15:43 (5 hours 15 minutes 43 seconds) and that stands as the official record of women's 50k in Antarctica.
The official record for the 50-Mile in Antarctica is 10:11:05 (10 hours, 11 minutes, 5 seconds), set by Marcin Aslanowicz (POL) during the 2024 Antarctic Ice Ultra.
The official record of men's 100k in Antarctica is 9:20:28 (9 hours 20 minutes 28 seconds), run by Yusheng Ni (CHN) in the 2024 Antarctic Ice Marathon & 100k.
The official record of women's 100k in Antarctica is 15:31:10 (15 hours 31 minutes 10 seconds), run by Julianne Young (AUS) in the 2012 Antarctic Ice Marathon & 100k.
The official record for the 100-mile distance in Antarctica is 23:22:57 (23 hours, 22 minutes, 57 seconds), achieved jointly by Paul Johnson (USA) and Roberto Sembiante (USA) during the 2024 Antarctic Ice Ultra.
Antarctic Ice Ultra
