F^3 Cap Sauers Trail Marathon & 10 Mile logo

Saturday, May 8, 2027 · 7:30 AM · Palos Hills, Illinois

F^3 Cap Sauers Trail Marathon & 10 Mile

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Race Info

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://sites.chronotrack.com/event/92163/results

2026 Photos here: https://www.flashframe.io/search/2861/

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

Can I do this race?
Time limit
No time limit listed by the organizer
Walkers
Not mentioned — ask the organizer
Terrain
Not stated
Certified
Not stated

Pulled from the organizer's own race description — per the organizer, not independently verified.

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F^3 Cap Sauers Trail Marathon & 10 Mile

May 8, 2027 · $75.45-$91.35

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