High Impact Athletes (HIA) is a nonprofit that spreads the ideas of effective altruism among professional athletes and encourages them to pledge to donate a percentage of their income to effective charities.


HIA was founded in 2020 by Marcus Daniell, an Olympic bronze medallist tennis player from New Zealand. Daniell is also HIA's executive director.

Further reading

Daniell, Marcus (2020) Introducing High Impact Athletes, Effective Altruism Forum, November 30.

Righetti, Luca & Fin Moorhouse (2021) Marcus Daniell on High Impact Athletes, communicating EA, and the purpose of sport, Hear This Idea, February 8.

High-Impact Athletes. Official website.

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