2011: Picked up fourth TOUR win but failed to record multiple top 10s in a season for first time on TOUR. Made only 13 of 24 cuts, but missed only one after he won the RBC Canadian Open.

In his sixth start in Canada, came from three strokes behind Sunday at Shaughnessy G&CC to claim his fourth career PGA TOUR win. He defeated Kris Blanks on the first hole of a sudden-death playoff. With the win, he moved up more than 100 spots on the FedExCup points list, from 147th to 43rd. One of 16 players in his 20s to win on TOUR during the season. 2010: Notched three top-10s and played three events in The Playoffs. Finished 47th in the final FedExCup standings.

Recorded his second consecutive fourth-place finish at the Hyundai Tournament of Championship, four strokes behind champion Geoff Ogilvy. Entered the final hole at 20-under and one shot behind tournament leader Ogilvy at the time, before hitting his second shot on No. 18 into a hazard and carding a double-bogey.

Next top-10 finish came 16 starts later, a T7 at the British Open. During that span, recorded eight top-25 finishes without cracking the top 10. Never missed a cut in six starts at the British Open.

Shared the 54-hole lead at the World Golf Championships-Bridgestone Invitational at 9-under-par and finished fifth, his first top-10 in a WGC stroke-play event, after a final-round 71. Held the lead outright on during the final round after birdies at Nos. 2 and 4, but unable to rebound from bogeys at Nos. 8, 11 and 14.

One week later, missed the cut at the PGA Championship, just his third missed cut in 20 career major championship starts. 2009: Won the third tournament of his career en route to a career-best nine top-10 finishes and a fifth-place finish in the FedExCup.

A final-round, 8-under 65, the best round of the day, led to a fourth-place finish at the season-opening Mercedes-Benz Championship.

Lost 4 and 3 to eventual finalist Paul Casey in the quarterfinals of the World Golf Championships-Accenture Match Play Championship, finishing T5.

Recorded a par on the final hole at the Arnold Palmer Invitational to finish second to Tiger Woods, who made birdie on the last hole soon after O'Hair's par. Led by five entering the final round.

Had three rounds in the 60s on the way to a T10 finish at the Masters Tournament, his first top-10 in a major championship.

Five weeks after losing a lead to Woods at the Arnold Palmer Invitational, surged down the stretch in winning the Quail Hollow Championship by one stroke over Lucas Glover and Bubba Watson. Closed with a 3-under 69—the only player from the last nine groups to break 70 at Charlotte's Quail Hollow Club—and made enough key birdies that finishing with consecutive bogeys on the two toughest holes at Quail Hollow didn't cost him. Took the outright lead with a two-putt birdie from 70 feet on the 15th, then seized control with an 8-iron to 8 feet for birdie on the 16th hole. Glover, who bogeyed the par-3 17th, had a chance to force a playoff on 18 until his approach bounded over the firm green and his birdie chip turned away to the left. Became the only current American player in his 20s with three PGA TOUR victories. International players Sergio Garcia and Adam Scott are the only others in the under-30 set to achieve that feat. The win vaulted him to third in the FedExCup standings.

Entered the final round of the Deutsche Bank Championship tied for the lead with Steve Stricker and Retief Goosen, but an even-par 71 dropped him to a T8 finish, his seventh top-10 of the season. Was 8-under in an eight-hole stretch in the second round (Nos. 15-4) when he shot 64.

One week later, posted rounds of 70-66 on the weekend to finish fourth at the BMW Championship. Climbed from 16th to seventh in the FedExCup standings entering THE TOUR Championship by Coca-Cola.

Jumped out to the opening-round lead at East Lake with a 4-under 66 and eventually finished third. One of just two players (Tiger Woods) without an over-par round during the week. Finished the season fifth in the FedExCup standings.

Was a rookie on the U.S. Presidents Cup team.

Runner-up in a playoff to Anthony Kim at the Kiwi Challenge. 2008: Notched second career TOUR victory to go with three top-10s.

After missing the cut in his two previous starts, came back with a two-stroke win at the PODS Championship. Finished the event at 4-under 284, the highest winning score in tournament history and the highest on TOUR since Angel Cabrera won the 2007 U.S. Open. Collected a career-best $954,000. At 25 years, 6 months, 28 days, became the youngest player to win the PODS Championship and one of just seven players younger than 30 with two or more wins on the PGA TOUR. 2007: Tallied a then-career high in top-10s (5) and nearly $2 million in earnings.

The 54-hole leader by two strokes over Phil Mickelson at THE PLAYERS Championship. Playing with Mickelson in the last group on Sunday, saw victory hopes evaporate with a quadruple-bogey on the par-3 17th hole (two balls in the water). Finished 11th after a final-round 76. On his 71st hole, he said: "I went dead after the pin, and it was right on line with the pin, maybe a yard right of the pin, and went in the water. You've got to make something happen. I didn't bust it for four days to get second place. So obviously I paid for it." 2006: Followed his sensational rookie season with a strong second year. Entered 30 events, made 20 cuts and finished in the top-25 seven times.

Played well in the major championships, making the cut in three of the four. Finished T14 at the British Open and T12 at the PGA Championship, his best finish in six career major championship starts.

Finished third at the Canadian Open, his best finish since capturing the 2005 John Deere Classic, two behind champion Jim Furyk. 2005: Stellar first season on TOUR, which included his first victory, a runner-up finish and Rookie of the Year honors.

First TOUR win came at John Deere Classic just one day shy of his 23rd birthday in his 18th career TOUR start. Posted four rounds in the 60s, including a final-round 6-under-par 65 that overcame a five-stroke J.L. Lewis lead. Finished the tournament with one bogey over his last 60 holes. Earned a career-high $720,000 and a spot in the British Open field the following week, jumping to 16th on the TOUR money list. Moved to World No. 53 from No. 93 and from No. 1,155 at the end of 2004. The Wednesday evening prior to the first round after struggling with his swing. "I was so desperate, I went to a Borders (bookstore) down the road from my hotel to get a couple Jack Nicklaus books. Thursday morning I woke up and was trying it in the hotel room. I tried it on the range before I went and played on Thursday and just hit the ball probably the best I've ever hit it.".

Obtained a last-minute passport for British Open trip to St. Andrews. After arriving on Wednesday, finished T15, his first career start in a major championship.

In just his 12th start of his rookie campaign finished solo second at the EDS Byron Nelson Championship. Held the lead after 36 and 54 holes, but could not catch Ted Purdy who closed with a 5-under 65.

He added a T8 finish at the Buick Open and a T10 at the Chrysler Championship to qualify for his first TOUR Championship presented by Coca-Cola. Went on to a T12 at East Lake GC in Atlanta to finish 18th on the money list, with $2,461,482. 2004: Turned in then-best finish in 18 career starts on the Nationwide Tour, a T28 at The First Tee Arkansas Classic. 2001: Made just one cut in seven starts in his only season as a member of the Nationwide Tour.

Spent time on the Cleveland Pro Tour and the Gateway Tour.