F^3 Cap Sauers Trail Marathon & 10 Mile

Sat, May 9, 2026, 7:30 AM CDT

Location: Palos Hills, IL; 11200 S Willow Springs Rd, 60465
Type: TRAIL

Official registration Past results (if available)

Vibe analysis coming soon

Course feel, difficulty, and community fit are being added to this listing. Check back, and always confirm details on the official registration page.

Distances & registration

2 options

Registration for all distances is through the official signup link above.

10 Miles
Sat, May 9, 8:00 AM CDT · From $64.85
Opens May 11, 2025, 6:00 AM CDT · Closes Jun 5, 2025, 7:59 AM CDT
26.2 Miles
Sat, May 9, 7:30 AM CDT · From $70.15
Opens May 11, 2025, 6:00 AM CDT · Closes Jun 5, 2025, 7:59 AM CDT

Vibe Check

Steady Effort

longer distance

Rolling area

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The course

From the organizer

Explore the Cap Sauers Holding Nature Preserve - the largest tract of undeveloped land in Cook County, IL. This race will cover every inch of maintained trail within the Nature Preserve. With over 1000 ft of elevation, this marathon is mountainous by Chicago standards!

The course uses the Sag Valley Trail system, covering the Yellow, Green, Blue & Tan trails. The whole course is wide horsetrail, allowing for 2-way traffic and encouragement from fellow participants.

Results here: https://www.athlinks.com/event/353493/results/Event/1082897/Results

Photos here: https://www.highfivebb.com/Running/F3-Cap-Sauers-Trail-Marathon-10-Mile-May-10-2025

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