Tiger Woods has become the first $US100 million ($A98.01 million) man on the PGA Tour.

Woods finished third on Monday in the Deutsche Bank Championship and made $US544,000 ($A533,150), pushing his career total to $US100,350,700 ($A98.35 million). Next on the list is Phil Mickelson, who finished fourth at the TPC Boston and has $US66,805,498 ($A65.47 million).

"The purse increase helps," Woods said after a final-round 66 left him two strokes behind winner Rory McIlroy in the second week of the four-tournament US Tour playoff.

"I won fewer tournaments than Sam Snead has, but obviously he was in a different era. It's just that we happened to time it up right and happened to play well when the purses really had a nice spike up."

Snead, the career leader with 82 PGA Tour victories, earned just $US620,126 ($A607,758) in a career that started in 1937. His biggest prize was $US28,000 ($A27,441) for a second-place finish in Milwaukee in 1968, and for most of his prime he played in tournaments with a total purse - that's all the payouts combined - of less than $US100,000 ($A98,005).

Woods has won 74 tournaments, second all-time, including 38 times with a first prize of $US1 million ($A980,056) or more. His winnings come out to an average of $US362,276.89 ($A355,051) for each of his 277 career starts.

But it's not just good timing: Prize money skyrocketed on the PGA Tour after Woods went pro and brought huge crowds and television audiences to the sport.

"It was nice to have a nice start to my career, and I won some majors early," he said. "I think we got some interest in the game of golf. A lot more youth, that's for sure."

This weekend's Deutsche Bank paid out $US8 million ($A7.84 million), including the $US1.44 million ($A1.41 million) that went to McIlroy for his third victory of the year.

By finishing strong - he was in the 60s in all four rounds - Woods remains in contention for the $US10 million ($A9.80 million) FedEx Cup bonus, which he has won twice. That money isn't even included in his official career earnings, nor is the hundreds of millions he has collected in endorsements.