Shanghai - Xander Schauffele bagged the biggest victory of his young career on Sunday, chasing down Tony Finau to win the WGC-HSBC Champions tournament in a play-off.
Schauffele, the 2017 PGA Tour Rookie of the Year, started the day three strokes off the lead but shot a roller-coaster 68 at Shanghai's Sheshan International Golf Club to catch Finau.
Schauffele, 25, birdied the par-3 17th to move level with Finau as the two Americans went to the 18th tee tied at 13 under par.
Both hit outstanding approaches to the reach the green on the par-5 hole in two, and each sank birdie putts to go to 14 under after 72 holes.
Replaying the 18th for the playoff, Finau, 29, was up against it after he drove his tee shot into a fairway bunker.
Schauffele, meanwhile, reached the green in two, putting pressure on Finau to sink a birdie putt from the fringe of the green to stay alive.
The putt just missed, handing Schauffele the win.
A few holes earlier, the pair had pulled away from playing partner Justin Rose, the defending champion and world number three, who faltered late and finished four strokes back at 10 under.
Schauffele's previous wins came in 2017 -- the Greenbrier Classic and the Tour Championship.
The WGC-HSBC Champions title bears a winner's purse of $1.8 million.
Leading scores after the final round of the $10 million WGC-HSBC Champions in Shanghai on Sunday, won by Xander Schauffele on the first playoff hole.
274 - Xander Schauffele (USA) 66-71-69-68, Tony Finau (USA) 66-67-70-71
278 - Justin Rose (ENG) 69-67-70-72
280 - Kiradech Aphibarnrat (THA) 68-71-70-71, Andrew Putnam (USA) 70-71-67-72
281 - Keegan Bradley (USA) 69-70-70-72
283 - Thorbjorn Olesen (DEN) 75-69-67-72, Patrick Reed (USA) 64-72-70-77, Patrick Cantlay (USA) 70-68-73-72, Tommy Fleetwood (ENG) 68-68-72-75
284 - Jason Day (AUS) 71-70-69-74, Li Haotong (CHN) 73-72-69-70, Billy Horschel (USA) 68-72-71-73
285 - Emiliano Grillo (ARG) 70-69-74-72, Rafael Cabrera (ESP) 68-73-73-71
286 - Brooks Koepka (USA) 72-74-71-69, Paul Casey (ENG) 73-68-74-71
287 - Adam Scott (AUS) 69-73-72-73, Thomas Pieters (BEL) 75-64-74-74, Alexander Norn (SWE) 74-69-71-73
288 - Ian Poulter (ENG) 69-71-74-74
289 - Jon Rahm (ESP) 73-76-69-71, Andrea Pavan (ITA) 72-71-69-77, Erik Van Rooyen (RSA) 76-72-71-70, Kyle Stanley (USA) 70-69-78-72, Tyrrell Hatton (ENG) 72-70-74-73, Cheng Tsung Pan (TPE) 68-76-70-75
290 - Alexander Levy (FRA) 71-70-76-73, Alexander Bjrk (SWE) 70-75-70-75