F^3 Cap Sauers Trail Marathon & 10 Mile

MAY
8
2027
Trail marathon and 10 mile on Sag Valley Trail through Cap Sauers Nature Preserve with wide horse trail, multiple aid stations, and notable elevation.
Sat 8 May 2027
26 miles 10 miles

Always double-check with the organizer's website! This page may contain affiliate links.

F^3 Cap Sauers Trail Marathon & 10 Mile

The event takes place at Cap Sauers Holding Nature Preserve in Palos Hills and uses the Sag Valley Trail system, including the Yellow, Green, Blue and Tan trails. The course runs on wide horse trail with little to no technical trail running required and often allows two-way traffic.

Distances:

  • Marathon: 26.2 miles
  • 10 Mile: 10.0 miles

The marathon course is composed of two circuits of the 10 mile loop followed by a final 10k out-and-back to the west aid station and back. Elevation gain is listed as about 1050 ft for the marathon and 400+ ft for the 10 mile course. Aid is available at several approximate mile marks: marathon at miles 3, 5, 8, 10, 13, 15, 18, 20, 23; 10 mile at miles 3, 5, 8.

Aid station provisions differ by location. North, South and East stations provide water and Gatorade Endurance Lemon-Lime; the West station also offers pickles, gummi bears, Pringles and a toilet. Porta-potties are located at the east and west ends of the course. The marathon distance is specified as 26.2 miles and the 10 mile course is specified as 10.0 miles. Visit the organization's website for the most recent information.

26 mi
Trail Marathon
10 mi
10 Mile

Events nearby

A community 5K in Flossmoor with a parallel virtual 5K that raises funds and collects goods to support local families experiencing hidden homelessness and provide school supplies for homeless children.
A 5K walk and run on October 10 supporting men's mental health with an in person course in New Lenox and a virtual 5K option.
A 5K and 10K trail run and walk through Swallow Cliff South in Palos Park on October 17, 2026, with gravel trails, elevation changes, reusable race cups, and age group awards.
A grassroots trail ultra at Deer Grove Forest Preserve on a 5.5 mile loop with 25K and 50K options, marked course, staffed aid stations, and prize money for top finishers.
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