Palos Hills, IL | Saturday, May 9, 2026Registration Open
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
Available Distances
Awards & Prizes
Participant Giveaway
26.2 Miles: Giveaway Options
10 Miles: Giveaway Options
Registration & Pricing
Distance
Price
Opens
Closes
26.2 Miles
$65.00
May 11
Jun 5
$75.00
Jun 5
Jul 3
$85.00
Jul 3
Sep 1
$95.00
Sep 1
Nov 10
$105.00
Nov 10
Dec 31
$115.00
Dec 31
Feb 17
$130.00
Feb 17
Mar 31
Interested in this race?
$145.00
Mar 31
May 8
10 Miles
$60.00
May 11
Jun 5
$65.00
Jun 5
Jul 3
$70.00
Jul 3
Sep 1
$75.00
Sep 1
Nov 10
$80.00
Nov 10
Dec 31
$85.00
Dec 31
Feb 17
$95.00
Feb 17
Mar 31
$105.00
Mar 31
May 8
PACKET PICK-UP
PACKET PICK-UP is on race day only. It opens at 6:30 am. Everyone has a pre-assigned bib+packet. Find your packet, head to the trail & visualize yourself having a fantastic run!