Photos: The Alaska Challenge handcycling race, Day 1

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Kenny Herriot of Scotland won the first two stages of Alaska Challenge handcycle race on Tuesday, July 21, 2015.

The Alaska Challenge, which bills itself as "The Longest, Toughest Handcycle Race in the World," began Tuesday with a time trial that started at Lake Hood and finished at Kincaid Park. The 250-mile race is broken into eight stages from Anchorage to Denali Park and is set to finish July 27 with steep climb through Hatcher Pass.

Check out a stage-by-stage breakdown of The Alaska Challenge, and read about one of the athletes:

Read more: Breaking down The Alaska Challenge

Versatile, adventurous Kurka adds handcycling to his athletic resume