Select the amount you would like to donate to Rhonda Griffith Tharp's 50 mi challenge.
Calculate your donation based on an amount per-mile Rhonda Griffith Tharp has committed to ride this September. Your total donation will be the amount you select multiplied by Rhonda Griffith Tharp's 50 mi challenge goal and will be charged up-front.
A receipt will be sent to this email address
