The donation counter can be configured to not count registration fees or pending payments.  
  1. Go to Communities > Special Events > Friends Asking Friends > Kintera Thon
  2. Hover over your event and click Website Info
  3. Click on the Website Features link
  4. Review the following settings: 
    • Under Participation Registration, if the box for "Do not add registration and additional fees to donations totals" is checked, registration fees are not counted in the donation totals.
    • Under Pledge Entry Tool, if the box for "Do not add pending donations and pending sponsorships to donation totals on website" is checked, pending amounts are not counted in donation totals.