Donation Amount

Select the amount you would like to donate to Tammy Davis's 50 mi challenge.

$50

$100

$250

$500

$1,000

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Donation Calculator

Calculate your donation based on an amount per-mile Tammy Davis has committed to ride this September. Your total donation will be the amount you select multiplied by Tammy Davis's 50 mi challenge goal and will be charged up-front.

$0.30 cents/mi

$0.50 cents/mi

$0.80 cents/mi

$1/mi

$1.50/mi

$2/mi