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Ultra Marathons found in Michigan in December

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Ultra Marathons in Michigan in December 2025

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

Race Calendar: Ultra Marathons found in December

🚀Boosted

Tour de Trails

Rockford, Illinois
Sat 20 Dec 25 - Sat 21 Mar 26
$25.00 - $110.00
🚀Boosted

RUN THE MITT VIRTUAL CHALLENGE

ANY TOWN, Michigan
Wed 01 Jan 25 - Sat 27 Dec 25
$65.10 - $75.70
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Tour de Trails

Rockford, Illinois
Sat 20 Dec 25 - Sat 21 Mar 26
$25.00 - $110.00

RUN THE MITT VIRTUAL CHALLENGE

ANY TOWN, Michigan
Wed 01 Jan 25 - Sat 27 Dec 25
$65.10 - $75.70
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