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.
He and Bradley finished on 20 under par after a rain-delayed final round and the 2011 US PGA champion required just one extra hole to seal victory.
"I assume it will either be a fine or I'm adding some in the fall", Spieth said.
He has the No. 1 ranking to prove it.
"I played a few tournaments now where I was close at the end and at the end of the season here 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's boyhood dreams", Rose added.
"Truthfully I was really fixated on making the Tour Championship, and I kind of knew if we didn't play today, I was in it", he said Monday afternoon in the media center, sitting next to both the BMW Championship trophy and the FedExCup.
It was awesome play even finished Monday after rain soaked the course overnight and pushed up tee times.
After Sunday's wet weather postponed the final round, overnight leader Rose got off to a shaky start in defence of his one-shot advantage with a bogey on the first hole.
U.N. Chief Says a 'Bloodbath' Must be Averted in Syria's Idlib
A newly displaced Syrian child arrives with his family at a refugee camp in Atimah village, Idlib province, Syria, Sept 11, 2018. Idlib faces "the worst humanitarian catastrophe" of the century, the United Nations warned on Monday.
The top 30 in the standings after this event earned spots in the season-ending Tour Championship, to be played September 20-23 at East Lake Golf Club in Atlanta.
As usual, it crowded around Tiger Woods.
And then it went sour over the next year when he turned pro and missed 21 consecutive cuts on the European Tour. It's been a hard road back, and this is just.
"It was a hard road back, but it feels good". He had his fourth back surgery last April, and at this time a year ago he had just been cleared to chip and putt.
A freaky scenario faces three-time major victor Jordan Spieth should a rainy forecast prove true and no golf takes place on Monday.
By virtue of his return to East Lake - his first trip since 2013 - Bradley will once again reap the benefits of being a top-30 player on Tour. He fell out of the top 30 and will miss the Tour Championship for the first time.
That means he will have played only 24 tournaments this season. And he will face a possible penalty from the PGA Tour for failing to play enough events this year as part of its field enhancement criteria.
Still to be determined is the penalty.
"I was in control of my own destiny and didn't have it this week", Spieth said after a closing 73 left him tied 55th on three-under. Spieth is the first player to violate the policy, which began previous year.
Later Monday, U.S. captain Jim Furyk will announce one more selection for the Ryder Cup.