100 Largest Races in the U.S.

RunSignup's 2025 total finishers across all timed events associated with each race weekend; events under two miles and untimed events are excluded.

Open 100 Largest Races in the U.S. in the race finder to search it by race or place, narrow it to one state, sort it, or save all 100 races to your plan. Each race has its own page with its next date, distances, registration and course details.