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Ultra Marathons Found In Rockford, Illinois

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Ultra Marathons in & near Rockford, Illinois 2025 - 2026

The most comprehensive list of Ultra Marathons in and near Rockford, Illinois in 2025 - 2026. Find your perfect race!

Race Calendar: Ultra Marathons Found In Rockford, Illinois

Frontline OCR

Byron, Illinois
24 May 25
$64.60 - $107.00

Trail Running University

Crystal Lake, Illinois
30 Dec 24 - 17 Mar 25
$133.50
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