Fundraising for a charity sport event (CSE) is a critical and challenging aspect of the event experience. CSE participants (i.e., CSE fundraisers) must engage with their network of friends, family, and colleagues (i.e., CSE donors) to solicit donations. A better understanding of CSE donor motives can translate to more effective fundraising among participants, which could be applicable to other peer-to-peer and sport-based fundraising initiatives. The researchers explored the factors driving CSE donors to contribute on behalf of CSE participants. Eight mechanisms driving charitable giving provided the theoretical framework. Semistructured interviews (N=24) were conducted with individuals who had donated to a CSE participant within the previo...