Road Run✓ Verified 2026-06-25
Visit Casper Marathon
Annual · first Sunday in June
📍 Downtown Casper
Beginner-friendlyPaidSummer
Marathon, half, relays and 10K along the North Platte. Boston-qualifying.
Visit Casper Marathon
Wyoming’s fastest-growing road race, founded by the Windy City Striders in 2002 — marathon, half, relays, and a 10K along the North Platte each June.