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Ultra Marathons found in Illinois

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Ultra Marathons in Illinois 2024 - 2025

The most comprehensive list of Ultra Marathons in and near Illinois in 2024 - 2025. Find your perfect race!

Race Calendar: Ultra Marathons found in Illinois

1000 Mile Challenge - 2025 Midwest

Edwardsville, Illinois
01 Jan 25 - 31 Dec 25
$31.74

Frontline OCR

Byron, Illinois
24 May 25
$64.60 - $107.00

The Ultimate SUCK

Cuba, Illinois
29 Aug 25 - 31 Aug 25
$158.94 - $430.45

1000 Mile Challenge - 2024 Midwest

Edwardsville, Illinois
01 Jan 24 - 31 Dec 24
$52.94
Showing 1-4 of 4 results