Select the amount you would like to donate to Mariana da Rosa Martins's 50 km challenge.
Calculate your donation based on an amount per-kilometre Mariana da Rosa Martins has committed to ride this August. Your total donation will be the amount you select multiplied by Mariana da Rosa Martins's 50 km challenge goal and will be charged up-front.
A receipt will be sent to this email address
Canada Revenue Agency requires all receipts to display a postal address
