Select the amount you would like to donate to Dinna Spencer's 100 mi challenge.
Calculate your donation based on an amount per-mile Dinna Spencer has committed to ride this September. Your total donation will be the amount you select multiplied by Dinna Spencer's 100 mi challenge goal and will be charged up-front.
A receipt will be sent to this email address
The Challenge Starts TODAY. Free Entry!
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The Challenge Starts TODAY. Free Entry!
Sign Up Now