MammothMarch Upstate New York

Date

Saturday, August 8, 2026

Location

Castile, New York

Distances

20 Miles

Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.

Making a race weekend of it?

Stay near the start line in Castile: check in Aug 7, out Aug 9.

Hotels on Booking.com ↗ Hotels on Expedia ↗

More races nearby

• Aug 8Bergen 5kBergen, NY
• Aug 8Cerveza Shuffle 2026Avenue of the Pines, NY
• Aug 8Daniel's RaceChurchville, NY
• Aug 8For Your Health 5K and Wellness EventOswego, NY
• Aug 8Geneva Half Marathon, 5K, & Half Marathon Relay presented by Red Jacket OrchardsGeneva, NY

See every race on the New York calendar, or use the Race Finder for maps and filters.