The race challenges participants to run a 6.7-kilometer loop within one hour. Those who fail to finish the loop in time are eliminated, and the competition continues until only one runner remains. Runners who complete the loop in under an hour can use the remaining time to rest before the next loop starts on the hour.
Radziszewska completed 38 loops in this year's event, matching her performance from the previous year when she also won the race. The ultramarathon began early on Saturday morning and concluded at midnight on Sunday, when Radziszewska was the sole runner left on the course.
"I simply ran, forgetting at some point about the passage of time, until I noticed that I was alone on the route," Radziszewska told the daily newspaper Visir, which broadcast the race live on its website.
Radziszewska, born in 1991, resides in Keflavik—home to Iceland's main international airport—and works for Icelandair. She has been participating in ultramarathons for five years.
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Source: PAP, sport.tvp.pl, Visir