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Ultra Marathons found in Illinois in Fall

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Ultra Marathons in Illinois in Fall 2025

Find A Race is the US's favourite event listings site. Check out our list of Fall 2025 Ultra Marathons in Illinois below.

Race Calendar: Ultra Marathons found in Fall

🚀Boosted

Sweet Ride | Bike • Run • Walk

Willow Springs, Illinois
04 Oct 25
$32.80 - $54.00
🚀Boosted

The Forge Trail Run Festival

Lemont, Illinois
15 Nov 25
$62.20 - $101.95
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Sweet Ride | Bike • Run • Walk

Willow Springs, Illinois
04 Oct 25
$32.80 - $54.00

The Forge Trail Run Festival

Lemont, Illinois
15 Nov 25
$62.20 - $101.95

1000 Mile Challenge - 2025 Midwest

Edwardsville, Illinois
01 Jan 25 - 31 Dec 25
$52.94
Showing 1-3 of 3 results