Select the amount you would like to donate to David Maddad Delgado's 100 mi challenge.
Calculate your donation based on an amount per-mile David Maddad Delgado has committed to ride this September. Your total donation will be the amount you select multiplied by David Maddad Delgado's 100 mi challenge goal and will be charged up-front.
A receipt will be sent to this email address
