National 24-Hour Challenge

June 16-17, 2012

Middleville, Michigan

2011 Results (click here)

2011 Photos (click here)

A personal best, on-road bicycle ride - to test endurance and determination.

The National 24 Hour Challenge
has been held on Father's Day Weekend since 1983.

Riders come from most every state in the union,
as well as more than a dozen foreign countries.

Set your goal, Join us, and achieve it!

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The N24HC is a UMCA Ultracycling Cup Event

UMCA Director to Speak at N24HC UMCA Executive Director Doug Hoffman will speak to riders on Friday evening at 7 PM in the TKMS Lobby. If you are a UMCA member, or interested in the UMCA ...
Posted May 27, 2012 9:05 AM by Pete Steve
N24HC Reunion Opportunity The founders of the National 24 Hour Challenge, Diane & Skip Obermeyer will be joining us Friday evening, June 15 to help celebrate the N24HC 30th Anniversary.I'm sure they ...
Posted May 13, 2012 5:49 PM by Pete Steve
2012 Rider Free Shirt This year, the free shirt for riders will be a custom wicking shirt from SweatVac. Extra wicking shirts wiil cost $25. We will also have a cotton event shirt (different ...
Posted Feb 26, 2012 6:12 PM by Pete Steve
Heartland Triple Crown Series For 2012, three midwest Ultra events have joined forces to establish the Heartland Triple Crown Series. Riders who post miles in all three events - Calvin's Challenge, the National 24 ...
Posted May 27, 2012 9:11 AM by Pete Steve
Garmin Files Available If you have a Garmin GPS, we have GPX files available for our three loops. See Event Info/Maps and Rules. These are contributed and carry no guarantee.
Posted Mar 21, 2011 6:39 PM by Pete Steve

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