Duval ' this years British Open champion ' bogeyed the 14th in regulation at the Phoenix Country Club and then recorded a four-putt at the par-3 17th for a double bogey to finish with a 69 for the day at 15-under-par 269.
Joining him at that mark was Teshima, who birdied three straight from the 14th through the 16th for a 65.
The playoff was concluded quickly, however, as Duval nearly holed a long bunker shot at the par-5 18th, setting up a mere tap-in for birdie.
Said the champion following the round: It was very important for me to come over here and win on foreign soil. It was a little ugly at the end but I won.
Next on Duvals plate is the WGC-EMC World Cup, where he will team with World No. 1 Tiger Woods in the American teams title defense.
News and Notes from the Dunlop Phoenix Open