CHARLOTTE, N.C. — Jason Day fought through wayward tee shots and his own self-doubt to shoot a 2-under 69 on Sunday and win the Wells Fargo Championship by two strokes over Aaron Wise and Nick Watney, his second victory of the season.

After squandering a three-shot lead on the back nine, Day’s tee shot on the difficult 230-yard par-3 17th hole crashed into the pin and settled less than three feet away. He made the putt to take a two-shot lead, becoming the only player to birdie the hole in the final round.

Day finished at 12-under 272.

“One of the best wins I have ever had,” said Day, who never felt on top of his game Sunday.

He missed more than half the fairways – including an ugly hook into the water on the par-4 14th – hit just eight greens in regulation and made four bogeys on the day. But he toughed it out on the final three holes, playing them in 2 under.

LPGA: Sung Hyun Park sprinted to the finish in the weather-abbreviated Texas Classic, chipping in for birdie on the final hole to close out a 5-under 66 in the second and final round, good for a one-shot victory over Lindy Duncan at The Colony, Texas.

Park, the highest-ranked player in the field at No. 5, ended up needing that chip to drop to survive a late charge by Duncan, who birdied her final three holes for a 64, the low round of the tournament.

Park finished with a two-round total of 11-under 131 for her third Tour victory and first since last season, when she won the U.S. Women’s Open, and was named Co-Player of the Year and Rookie of the Year.

CHAMPIONS: Bernhard Langer won his first Tour event of the year when he saved par on the final hole for a 2-under 70 and a one-shot victory in the Insperity Invitational at The Woodlands, Texas.

Langer had to rally from as many as four shots behind in the final round. He birdied two straight holes around the turn, added birdies on both par 5s on the back nine, then had to scramble for par.

Paul Goydos, Jeff Maggert and Bart Bryant tied for second.

EUROPEAN: Ireland won the second edition of the innovative GolfSixes tournament as Gavin Moynihan and Paul Dunne beat the French pair of Romain Wattel and Mike Lorenzo-Vera in the final at St. Albans, England.

The Irish overcame the England Women’s team of Charley Hull and Georgia Hall 2-0 in the quarterfinals of the six-hole match-play event, then defeated South Korea in the semifinal round.