But while the extraordinary — and ultimately match-winning — shot he hooked out of the trees on hole 10, the second play-off hole will go down in golfing folklore, Watson has already added plenty of colour to the sport.
Here are 10 extraordinary facts about Watson, who is now ranked number four in the world behind the British trio of Luke Donald, Rory McIlroy and Lee Westwood.
1 — He was born in Bagdad
Not the one in Iraq, but the slightly less well-known Bagdad, Florida. In the 2000 census, there were fewer than 1500 residents.
2 — He's never had a golf lesson
In an era where golfers are coached, coached and then coached again, Watson is entirely self-taught. As a boy his father showed him how to hold a club, and thereafter it was all Bubba, who has also reportedly never watched a replay of his swing.
3 - He owns one of TV's iconic cars
The American spent $110,000 on his 'dream car', but eschewed the big brands to buy the General Lee from television show The Dukes of Hazzard. Now, there were plenty of General Lees, but the one there was special; called "Lee 1," it's the one that jumped the police car in "The Dukes of Hazzard" TV series' opening credits. Destroyed in the jump, it was restored in a 16-month process.
4 — He didn't care for France
In 2011 Watson warmed up for the Open by playing the French Open. The plan was to broaden his horizons and see a little of the world, but after a miserable time at the tournament, where he was frustrated by fans flouting rules about cameras, he revealed he wasn't especially impressed by Paris' sights. "I miss my home. I don't know the names of all the things, the big tower, Eiffel Tower, an arch (Arc de Triomphe), whatever I rode around in a circle. And then what's that - it starts with an 'L' - Louvre, something like that. One of those."
5 — He did his best to build bridges with the French
"I would never want France to think I was bad-mouthing the place," Watson said apologetically. "I didn't know how to pronounce the names the right way. They say it was disrespectful. I'm sorry for that. I didn't mean to be disrespectful. But I play golf. I'm not a history major. I didn't understand that I was the big star of the week because I don't go over there [Europe] that much. There is a lot of learning I have to do and a lot of growing up I have to do. I have to choose my words carefully. I am sorry for the words I spoke."
6 — His 6'4" wife played basketball
Angie Watson and Bubba have been together since their time at the University of Georgia, and have now been married for seven years. She played professional basketball in Europe and in the women's NBA. Not only is she literally head and shoulders above other golfing WAGs, but having retired from basketball she's now her husband's agent.
7 — He's just adopted a son
A week before the tournament, the Watsons adopted one-month old Caleb after a four-year process. Watson's commitments at the Georgia tournament meant that he has not yet had to change a nappy.
8 — He's been part of an all-golf boy band
US golfers Watson, Ben Crane, Rickie Fowler and Hunter Mahan set up a boy band ahead of the 2011 US Open to record a charity single. 'Oh oh oh' was a feast for the ears, and if you don't believe us, you can listen and decide for yourself.
9 — He talks to Justin Bieber 'almost every day'
Bubba is living the fantasy of many teenage girls, hanging out with pop prince Justin Bieber. The singer told Access Hollywood Live that he counted Watson amongst his closest friends. "I talk to him almost every day," Bieber said. "He's a good guy.I'm all right at golfing, I'm not the greatest. Bubba says I'm terrible!" What Bieber thinks of 'The Golf Boys' record is unclear.
10 — And his real name...
Bubba has always been known as Bubba — but his real name is Gerry. The golfer claims his father gave him the name because he was "fat and ugly" as a child.