Conor McGregor

Conor McGregor commands a $200 million net worth, largely driven by a single business move that outperforms #10 Serena Williams' entire career portfolio. The Irishman earned $100 million from the 2017 Floyd Mayweather boxing match alone, plus $50 million in UFC earnings. Yet his true fortune came from Proper No. Twelve Irish Whiskey: in 2021, he sold his majority stake to Proximo Spirits for $600 million, pocketing an estimated $150 million — 50% more than his combined fight purses. With a 22-6 MMA record and 0-1 in boxing, McGregor has been the UFC's biggest PPV draw for a decade, proving that personality sells: his fight week press conferences generate 3x more views than most fighters' actual bouts.