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Spring trail races near Chicago (2027)

4 trail races on the calendar from March to May, starting with Muddy Shamrock @ The Forge on Saturday March 13. 2 of them publish an upcoming price increase, so signing up early saves money.

All spring races5K races (32)10K races (18)Half marathons (15)Marathons (2)Trail races (4)

• Sat13Mar

  Muddy Shamrock @ The Forge

  Sat Mar 13 · 9:00 AM · Lemont · South Suburbs

  10KHalf marathonTrail

  from $60Goes up Jan 30
• Sun14Mar

  Fox Valley Winter Challenge Trail Series 10K

  Sun Mar 14 · 10:00 AM · St. Charles · West Suburbs

  10KTrail

  from $70Reg. closed
• Sat3Apr

  Winnetka Bunny Hop Dash 5k

  Sat Apr 3 · 8:00 AM · Winnetka · North Shore & North Suburbs

  5KTrail

  from $25Reg. closed
• Sat8May

  F^3 Cap Sauers Trail Marathon & 10 Mile

  Sat May 8 · 7:30 AM · Palos Hills · South Suburbs

  10 milesMarathonTrail

  from $75Goes up Nov 9

• Fall 202682 races
• Winter 2026-2736 races
• Summer 202718 races