Select the amount you would like to donate to Shirley Probst's 50 mi challenge.
Calculate your donation based on an amount per-mile Shirley Probst has committed to ride this September. Your total donation will be the amount you select multiplied by Shirley Probst's 50 mi challenge goal and will be charged up-front.
A receipt will be sent to this email address
The Challenge Starts TOMORROW. Free Entry!
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The Challenge Starts TOMORROW. Free Entry!
Sign Up Now