Bradley has beaten new world number one Justin Rose at the first playoff hole at the penultimate playoff event in Pennsylvania.
Fourth-ranked Rose, who lipped out a 15-foot par putt on the 18th, needed a victory or a solo second-place finish behind anyone but American Justin Thomas to claim the number one ranking.
"A lot of hard work I've done with my coach Grant (Field) is paying off at the right time of the season".
Watching Simpson hole puts from across TPC Sawgrass at this year's THE PLAYERS Championship strengthened Bradley's belief in his new putting method. "It made me feel calm, which is rare". The process led to setbacks, but he got better each month.
"That's an wonderful achievement, something I'm extraordinarily proud of", Rose told Rogar Maltbie of Golf Channel.
But when two days worth of rain threatened to cancel the final round of the BMW Championship, part of him thought, maybe that's just fine.
"I would love to have got there by winning..." That allows him to move on to East Lake and the TOUR Championship for the first time since 2013.
A relatively straightforward putt for par on the final hole of the Philadelphia course was all that stood in the way of the Englishman and the winner's spot, but the ball spun around the hole and away to force Rose into a playoff against Keegan Bradley.
"To say that I made it back to the Tour Championship after what I've been through is a pretty good accomplishment", Woods said.
It was the sixth time in Woods' career that he shot 263 or lower over four rounds, and the first time he did not win that tournament.
England's Paul Casey, a member of the European team, pulled out of the BMW after the third round, citing back pain. "I'd hate to round off the season with three seconds, but that could be good enough next week, you just never know".
A freaky scenario faces three-time major victor Jordan Spieth should a rainy forecast prove true and no golf takes place on Monday.
However, Spieth's closing 73 meant he was unable to take the opportunity.
The first tee time was scheduled for 7:30 a.m. Because he didn't add to his schedule a tournament he had not played in the last four years, he is in violation of the PGA Tour's scheduling policy. Players are required to play in 25 events in a season or risk a fine; Spieth played in 24 events and was clearly banking on making East Lake his 25th. Thirty players, led by two-time playoff victor Bryson DeChambeau, will head to East Lake Golf Club in Atlanta, Ga. next week with the aim of capturing the FedEx Cup and its $10 million prize.
Still to be determined is the penalty.