Asafa Powell led from start to finish to win the 100 metres in 9.86 seconds and join two other athletes in earning big paydays at the ISTAF meet Sunday.
Jeremy Wariner and Sanya Richards also earned just under $250,000 US each by winning their events.
Wariner, the world and Olympic champion, completed a sweep of six wins in six Golden League races, taking the 400 metres in 44.26 seconds.
Richards won the women's 400 by nearly a second in beating another American, Dee Dee Trotter. Richards eased home in 49.81 and Trotter was second in 50.87.
``It looked easy but it was tough,'' Richards said. ``I controlled my race very well.''
Powell, the world record co-holder from Jamaica, set a meet record in beating Tyson Gay of the United States, who was second in 9.96, with another American, Leonard Scott, third in 10.07.
``The crowd helped me a lot but it was not enough for another world record,'' Powell said.
Powell shares the world record at 9.77 with Justin Gatlin, but is likely to become sole holder when the American is stripped of his time as expected because of doping.
The three winners swept their events at all six stops on the Golden League series, assuring them of a three-way split of $500,000.
They also won $83,333 each from another $500,000 purse shared by six athletes. For the first time, the $1 million total jackpot was split into two different purses _ one half for six-time winners and one half for five-time winners.