But despite coming second, Rose has become the new World No 1, and is now just the 22 player to make the top spot since the rankings began back in 1986.
Both missed the green right with their approaches, facing similar shots, and though Bradley left himself within tap-in range, Rose watched in despair as his short putt for par slid by, leaving Bradley to finish out for a huge win.
Casey cited back pain for pulling out of the FedEx Cup playoff event at Aronimink on Monday morning.
Rose got a lucky break in the playoff when his approach shot landed in a skybox but ricocheted back toward the hole and stopped just off the green.
Former world number one Spieth finished tied-12th at the Dell Technologies Championship but failed to improve on that in hard conditions at the BMW Championship. "I kind of fell of the radar there for a little while".
Tour members were encouraged to add a tournament to their schedule that they hadn't featured in for the last four years, although they would be exempt if they made 25 starts.
"I was in control of my own destiny and didn't have it this week", said United States Ryder Cup team member Spieth. "That's the thing with sudden-death play-offs, you make a mistake and it's all over". "It's tough to go from being on Ryder Cup teams, being on Presidents Cup teams to being outside the top 100 in the world". "I came out today, I just felt great".
India's top court decriminalizes gay sex
The apex court also said India was a signatory of global treaties on rights of LGBTQ and it was obligatory to adhere to them. As the New York Times notes, the justices made it clear that they knew they were making a historic decision.
"To have a chance to win again this year, it s a very positive feeling". He had his fourth back surgery last April, and at this time a year ago he had just been cleared to chip and putt.
Spieth failed to qualify for the season-ending Tour Championship next week after finishing tied for 55th at the BMW Championship and slipping from 27th to 31st in the FedExCup standings.
"No 2 is an incredible spot to be in, and it's a week where there are many scenarios in play", he said.
That means he will have played only 24 tournaments this season.
"I turned pro at 18 and it took me 20 odd years to get to world No 1, but my advice would be to just dedicate yourself to improving, to learning, to trying to get better".
By this stage Bradley was making his charge at 18-under for the tournament, while playing partner Rose was stretching away at the same mark and Xander Schauffele had moved one ahead. However in recent years the Englishman won his first major, the 2013 US Open, as well as gold at the Rio Olympic Games and he has nine PGA Tour wins to his name.