Donation Amount

Select the amount you would like to donate to Tammy Kuiper's 100 km challenge.

$50

$100

$250

$500

$1,500

OtherSurprise Tammy

Donation Calculator

Calculate your donation based on an amount per-kilometre Tammy Kuiper has committed to ride this October. Your total donation will be the amount you select multiplied by Tammy Kuiper's 100 km challenge goal and will be charged up-front.

$0.30 cents/km

$0.50 cents/km

$0.80 cents/km

$1/km

$1.50/km

$2/km