(US unless stated)
-18 B Gay -13 B Molder, D Toms -12 J Senden (Aus), P Goydos, R Allenby (Aus) -11 G McDowell (Ire), J Dufner
Selected others:-4 R Goosen (RSA) -3 F Jacobsen (Swe) +1 P Mickelson, J Daly
The victory is Gay's third in the last two seasons on the PGA tour
Brian Gay fired a final-round 66 to win the St Jude Classic by five strokes from David Toms and Bryce Molder.
The American, who led by one overnight, picked up three shots in the first six holes to extend his lead and a birdie at last took him to 18 under par.
Northern Ireland's Graeme McDowell shot the lowest round of the day, a seven-under-par 63, to finish tied seventh.
Toms carded a 65 to share second while Australian John Senden's six-under-par 64 lifted him to a share of fourth.
Gay booked his spot at the US Open with a win which came after three rounds of 66 and one of 64.
"It was a long course on the final day, even longer than the previous round, really wet and didn't play into my hands at all," said Gay.
"I wasn't happy with all the rain but I managed to get it done. It's been a really great week and I'm really happy."
World number two Phil Mickelson was playing after a five week lay-off following his wife being diagnosed with breast cancer.
He shot a disappointing five-over 75 on the final day to finish one-over for the week and was concerned about his putting ahead of the US Open.
"I haven't putted well the first three days. I feel like I've struck the ball well but have not been able to get it in the hole and shoot a number," he said.
"I thought I would be in a little better shape," he added. "I thought I would give myself a chance for Sunday's round, maybe within three, four, five shots but I just haven't quite gotten it in the hole yet, haven't made enough putts.
"I'll spend some time on that in the next few days and should be able to get it ironed out."
Momentum's everything in this game, we know that and 63 will do nothing but boost my confidence
The US Open will take place at Bethpage State Park on New York's Long Island and McDowell says he will go into it high on confidence after his final round at the St Jude Classic.
"I've been playing well for a while. It's nice to get the numbers," said McDowell.
"It's my best finish of the season which is key, you know, you like to get some rewards for how you're playing and nice to post 63 on the weekend.
"Momentum's everything in this game, we know that and 63 will do nothing but boost my confidence."
He added: "I drove the golf ball better on Sunday and that's what I haven't been doing. I've been driving the golf ball awful and that was one of the strengths of my game.
"I put it in play more often and I reaped the benefits. My iron play has been really quality lately and I'm giving myself more chances."