Select the amount you would like to donate to William Demaine's 50 km challenge.
Calculate your donation based on an amount per-kilometre William Demaine has committed to ride this August. Your total donation will be the amount you select multiplied by William Demaine'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
The challenge starts TODAY. Free entry. Sign up now!
Sign Up Now!
The challenge starts TODAY. Free entry. Sign up now!
Sign Up Now!