La Jolla - Spain's Jon Rahm claimed his first PGA Tour title in style on Sunday, rolling in an eagle putt from the fringe at the final hole to win the Farmers Insurance Open at Torrey Pines.
Rahm had broken free of the group tied for the lead at 10-under with a birdie at 17.
At the par-five finishing hole on the South Course, he reached the back fringe with his second shot. Rahm's effort from 60 feet snaked toward the hole and into the cup to cap a seven-under 65.
His 13-under total of 275 proved to be enough for a three-shot victory as the bevy of golfers on his heels stalled late.
Taiwan's Pan Cheng Tsung and American Charles Howell III shared second on 10-under 278.
England's Justin Rose closed with a two-under 70 to head a group on 279 alongside Americans Keegan Bradley (67), Pat Perez (70), Patrick Rodgers (72) and Tony Finau (71).
Rahm, 22, had opened with a bogey, but after birdies at the third, fifth and 11th he put himself among the leaders with an eagle at the 13th.
"Thanks to 13, I got myself into it," said Rahm, whose second shot from a fairway bunker left him an 18-footer for eagle.
Rahm said his thought process all day was far different from his mind set at last year's National, where he finished third after leading or sharing the lead over the first two rounds.
There, he said, he was second-guessing himself on the greens, afraid of over-hitting and costing himself pars.
"Today it was just completely different," Rahm said. "I was just focused on making putts and hitting the right shots."
Pan, a 25-year-old also chasing a first US tour title, had reached 10-under for the tournament after birdies at eight, nine and 10, but he couldn't find another birdie.
Howell earned his share of second with a birdie at 18 that capped a 68 and put him in the clubhouse at 10-under before Rahm's late-round heroics.
J.J. Spaun was 10-under after a birdie at 17, but found the water en route to a double-bogey at 18, while Finau's challenge effectively ended with a bogey at 15.
Brandt Snedeker, the defending champion gunning for a third title at Torrey Pines, just couldn't get much going even though he's an old hand at storming finishes on the picturesque course hugging the Pacific coast.
Snedeker was seven shots adrift after 54 holes when he won in 2012, and rallied from six back last year.
With a share of the 54-hole lead this time around, Snedeker shot a one-over 73 to join a group sharing ninth on 280.
Leading final-round scores on Sunday from the USPGA Tour Farmers Insurance Open at par-72 Torrey Pines (USA unless noted):
275 - Jon Rahm (ESP) 72-69-69-65
278 - Charles Howell 67-74-69-68, Pan Cheng Tsung (TPE) 70-69-69-70
279 - Keegan Bradley 69-69-74-67, Justin Rose (ENG) 65-71-73-70, Pat Perez 68-74-67-70, Patrick Rodgers 68-72-67-72, Tony Finau 73-68-67-71
280 - Brian Harman 68-71-73-68, J.J. Spaun 72-69-69-70, Ollie Schniederjans 69-69-71-71, Robert Streb 68-71-70-71, Brandt Snedeker 68-69-70-73
281 - Michael Thompson 71-71-71-68, Rory Sabbatini 70-72-72-67, Phil Mickelson 71-72-68-70, Kyle Stanley 70-73-68-70, Francesco Molinari 71-70-69-71, Harris English 71-69-69-72
282 - Brendan Steele 69-74-70-69, Ryo Ishikawa (JPN) 74-68-72-68, Tyrone Van Aswegen (RSA) 72-68-72-70, Gary Woodland 67-75-69-71, Richy Werenski 73-70-73-66, Stewart Cink 68-72-69-73, Jonas Blixt (SWE) 68-72-69-73, Marc Leishman (AUS) 69-72-68-73
283 Roberto Castro 70-70-73-70, Kelly Kraft 72-70-72-69, Martin Flores 71-72-72-68, Jhonattan Vegas (VEN) 73-70-68-72, Paul Casey (ENG) 69-73-68-73