Select the amount you would like to donate to Mayra Sainz Cuartas's 150 mi challenge.
Calculate your donation based on an amount per-mile Mayra Sainz Cuartas has committed to ride this September. Your total donation will be the amount you select multiplied by Mayra Sainz Cuartas's 150 mi challenge goal and will be charged up-front.
A receipt will be sent to this email address
