Los Angeles - Tony Finau defeated fellow American Steve Marino with a birdie on the third extra hole to capture the Puerto Rico Open and claim his first USPGA Tour title on Sunday.
The 26-year-old Finau was making his 46th start on the Tour and first appearance in a playoff.
Under cloudy skies with gusty winds, Finau and Marino made clutch birdies on the first two extra holes at the par-five No. 18 to send the pair back to the 18th tee for the third extra hole.
Marino was unable to match Finau's third straight playoff birdie. They both shot two-under 70 to finish at 12-under 276 in regulation.
Finau's best previous finish was a tie for seventh at the Shriners Hospital Open and the OHL Classic during his rookie season last year. He posted five top-10 finishes last year.
Marino recorded his first top-10 finish on the Tour since finishing runner-up at the Arnold Palmer Invitational five years ago.
Ian Poulter, who led after 54 holes, closed with an even-par 72 to finish in a tie for third with Rodolfo Cazaubon of Mexico.
Puerto Rico native Rafa Campos posted back-to-back scores of even-par 72 on the weekend to finish in a tie for eighth.
Defending champion Alex Cejka of Germany fired a 71 on Sunday to reach eight under overall, four shots back of the leaders.
Leading final-round scores on Sunday in the US PGA Tour Puerto Rico Open at Rio Grande, Puerto Rico (x-Won in playoff. USA unless noted, par-72):
276 - x-Tony Finau 69-70-67-70, Steve Marino 70-67-69-70
277 - Rodolfo Cazaubon (MEX) 70-70-69-68, Ian Poulter (ENG) 71-66-68-72
278 - Andres Romero (ARG) 70-73-68-67, Nick Taylor (CAN) 70-71-67-70, Scott Brown 71-69-67-71
279 - Will MacKenzie 66-71-71-71, Rafael Campos (PUR) 64-71-72-72, Aaron Baddeley (AUS) 66-72-69-72
280 - Scott Langley 72-70-69-69, Alex Cejka (GER) 66-71-72-71, Graham DeLaet 70-69-70-71, Kyle Reifers 67-70-71-72
281 - Tim Herron 68-75-72-66, Luke Guthrie 69-70-72-70, Luke List 70-70-71-70, Kelly Kraft 72-69-70-70, Mark Hubbard 67-70-72-72, Freddie Jacobson (SWE) 69-69-70-73
282 - Jerry Kelly 74-69-74-65, Retief Goosen (RSA) 73-69-71-69, Patrick Rodgers 69-70-72-71, Tim Wilkinson (NZL) 71-71-69-71, Derek Fathauer 70-68-71-73