0004
Ultra Marathons found in Illinois in Spring
View all ↓Ultra Marathons in Illinois in Spring 2025
Find A Race is the US's favourite event listings site. Check out our list of Spring 2025 Ultra Marathons in Illinois below.
Race Calendar: Ultra Marathons found in Spring
Frontline OCR
Byron, Illinois
24 May 25
$69.90 - $117.60
Trail Running University
Crystal Lake, Illinois
30 Dec 24 - 17 Mar 25
$133.50
1000 Mile Challenge - 2025 Midwest
Edwardsville, Illinois
01 Jan 25 - 31 Dec 25
$31.74
Run/Walk for the Soul w/Soulful Doulas
Evanston, Illinois
16 Mar 25 - 30 Mar 25
Free
Showing 1-4 of 4 results