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Ultra Marathons found in Illinois in August

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Ultra Marathons in Illinois in August 2025

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

Race Calendar: Ultra Marathons found in August

🚀Boosted

The Ultimate SUCK

Cuba, Illinois
29 Aug 25 - 31 Aug 25
$137.74 - $472.45
🚀Boosted

Warrior Foundation Events Fundraiser for Childhood Cancer

Loves Park, Illinois
29 Aug 25 - 30 Aug 25
$43.65 - $107.25
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2025 9th Annual Gold Star 500

Springfield, Illinois
31 May 25 - 27 Sep 25
Free - $450.00

The Ultimate SUCK

Cuba, Illinois
29 Aug 25 - 31 Aug 25
$137.74 - $472.45

Warrior Foundation Events Fundraiser for Childhood Cancer

Loves Park, Illinois
29 Aug 25 - 30 Aug 25
$43.65 - $107.25

1000 Mile Challenge - 2025 Midwest

Edwardsville, Illinois
01 Jan 25 - 31 Dec 25
$52.94
Showing 1-4 of 4 results