Meanwhile, cases like Ryan Lochte , who famously banked about $ million in 2012 thanks to endorsements form Speedo, Mutual of Omaha, Gillette, Gatorade, Proctor and Gamble, Ralph Lauren, Nissan and AT&T (plus, he was on the cover of Vogue ) are rare. Even Katie Ledecky , who along with Simone Biles has been one of the most promoted . athletes heading into Rio, is said to be foregoing millions in endorsements because she put off turning pro, intending to attend Stanford and swim for the Cardinal after Rio. The 19-year-old has passed hundreds of thousands more that she's won along to USA Swimming because NCAA rules prohibit their "amateur" swimmers from accepting prize money. Ledecky will , however, get to keep the money USOC awards for medals.