Calvin’s Challenge 24 hour

Springfield, OH Springfiled, OH, United States

3 categories; Drafting starts at 0710. Non-drafting (RAAM Qualifier) starts at 0710. 24-hour team drafting. Teams of 2-8 riders. Age group, Gender, bike type awards. https://www.bikereg.com/calvins-challenge-2025

CROULTRA 12hr 2025

Suitable for anyone who wants to test their endurance and check how many kilometers they can cover in 12 hours. At the same time, the 6 and 24 hour marathons are held.

Race Type: 12 HourChampionship
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