Oct
11-12
Sa - Su

Indiana Trail 100

Website Registration

Indiana Trail 100 is an Ignite Trail Series ultramarathon held at Chain O’Lakes State Park in Albion, Indiana, on October 11–12, 2025. The event offers 100-mile, 75-mile, and 50-mile race distances run on a multi-loop trail course. It serves as a Western States qualifier and is renowned for its enthusiastic volunteer network.

Registration opens November 1, 2024 and closes about two weeks before race weekend; there is no day-of registration, and field caps may be set by distance with a waiting list for some entries. The IT100 is part of a broader series with detailed course maps and athletes’ guides available on the site. Visit the organization's website for the most recent information.

Always double-check with the organizer's website – things can change, and we might have sprinted past a few details!
100 mi
100 Mile
75 mi
75 Mile
50 mi
50 Mile

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