4 ultra events in Sylvan Grove, Kansas

From big races to Saturday morning group runs—find ultra events and connect with the local endurance sports community.

• Hell Creek Half & 50k [ultraversesupplements.com] [Register at ultrasignup.com]
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Sat, Aug 29, 2026

  50k Half Marathon Ultra

  switchgrass mountain bike trails, Sylvan Grove, Kansas, United States
  OpenStreetMap Google Maps
• Hell Creek 100 [ultraversesupplements.com] [Register at ultrasignup.com] - Facebook
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Sat, Oct 31, 2026

  10k 100k Ultra

  switchgrass mountain bike trails, Sylvan Grove, Kansas, United States
  OpenStreetMap Google Maps
• The Eternal Damnation Backyard [ultraversesupplements.com] [Register at ultrasignup.com] - Facebook
  • Subscribe to My Calendar (sign in required)

  • ---

  • Download single event

  Sat, Apr 24, 2027 at 8:00 AM

  Backyard Ultra Ultra

  3 State Park Road, Sylvan Grove, Kansas, United States
  OpenStreetMap Google Maps