Schedule and packet pickup
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!
F^3 Cap Sauers Trail Marathon & 10 Mile 2027
- Date
- Saturday, May 8, 2027
- Start time
- 7:30 AM start (Chicago)
- Location
- Palos Hills, Illinois
- Entry fee
- From $75 · goes up to $105 on Nov 9, 2026
- Fundraising
- Takes optional donations when you register
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Official race websiteAdd to calendar: Apple or Outlook · Google
Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| Trail Marathon | Marathon | May 8, 20277:30 AM | $95$105 after Nov 9, 2026 | – |
| 10 Mile | 10 Mile | May 8, 20278:00 AM | $75$80 after Nov 9, 2026 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
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The Marathon fee goes up to $105 on Nov 9, 2026.
Race day planning
Entry fee schedule
- Trail Marathon: $95 until Nov 9, then $105 until Dec 30, then $115 until Feb 16, then $130 until May 8.
- 10 Mile: $75 until Nov 9, then $80 until Dec 30, then $85 until Feb 16, then $95 until May 8.
Online registration closes May 8, 2027, unless the race fills first.
Light and altitude
Sunrise on race morning is at about 5:40 AM, and the Trail Marathon starts at 7:30 AM. The start sits about 600 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
11200 S Willow Springs Rd, Palos Hills, IL 60465
The pin marks the address the race lists, which is usually the start. Course maps are the organizers' own.
Typical race-day weather
Around May 8 the day usually runs from 47°F at dawn to 67°F in the afternoon, with measurable rain on about 25% of days. Cold snaps dip to 39°F and hot years reach 80°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
From the race's page
What the organizers of F^3 Cap Sauers Trail Marathon & 10 Mile cover on their registration page, in brief.
Course
Course Description & Map
The race distances are precisely measured. The Marathon is 26.2 miles, and the 10 Mile race is 10.0 miles long. The 10 Mile course map is here: https://www.mapmyrun.com/routes/view/4099620145. The Marathon route starts with two circuits of…
Shirt and medal
Giveaways
Participants all receive a technical trucker hat, and marathon finishers get a finisher's shirt! All finishers receive a unique wooden medal. All participants registered before April 1st receive a personalized bib. You can even pick your…
Race details
- Where
- 11200 S Willow Springs Rd, Palos Hills, IL 60465Map
- Course
- Trail
- Start elevation
- About 600 feet
- Included with entry
- Giveaway options; Giveaway Options
- Donations
- Accepted when you register
- Distances
- 10 Mile, Marathon
- Editions
- 2027 (May 8, 2027), 2026 (May 9, 2026), 2025 (May 10, 2025), 2024 (May 11, 2024)
Organize this race? Add details or a correction
Plan your race
Quick answers
- When is F^3 Cap Sauers Trail Marathon & 10 Mile?
- Saturday, May 8, 2027, starting at 7:30 AM.
- How much does it cost?
- Entry starts at $75 before processing fees, and rises to $105 on Nov 9, 2026.
- When does registration close?
- Online registration closes May 8, 2027, unless the race fills first.
- Can I donate to a cause when I register?
- Yes. The registration form offers an optional donation, usually for the charity or nonprofit the race supports. The race's own page names the cause.
- What distances can I run?
- 10 Mile, Marathon.
- Where does it start?
- 11200 S Willow Springs Rd, Palos Hills, IL 60465.
- Is there a course map?
- Yes, the organizers publish the route on MapMyRun; the link is under Start location and course.
From the organizers
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