Spartan Race Seattle 2025 Dates. Complete the trifecta—the ultimate achievement, etching yourself in. We’ve made changes to venues, race heats, and championships to crank up the competition.

Gather your friends, family, and teammates to form the largest team at any. The 2024 and 2025 tough mudder race schedules are packed with epic events, making it easy to find your race, start your training, and cross the finish line this year.