Kuchar and English finished at 34-under 182, playing their last 28 holes at Tiburon in 25 under. They opened with 64 on Friday in modified alternate-shot play and had 60 on Saturday in better ball.
The duo beat Retief Goosen and Fredrik Jacobsen by seven strokes, matching the tournament record for margin of victory set by Curtis Strange and Mark O’Meara in 1989 in the inaugural event.
Kuchar and English, who replaced the injured Brandt Snedeker in the field, each earned $385,000.
ASIA TOUR: In Chonburi, Thailand, Sergio Garcia shot a final-round 68 to beat Henrik Stenson by four strokes and win the Thailand Golf Championship at the Amata Spring Country Club on Sunday.
The 33-year-old Spaniard, who held the lead since the second round, turned in a solid final round that featured six birdies and two bogeys to finish on 22-under 266.
The victory is Garcia’s first this year with his last win coming at the Johor Open, an Asian Tour event in Malaysia last December.
FATHER-SON CHALLENGE: In Orlando, Fla., Stewart and Connor Cink won the Father/Son Challenge, making two eagles in their final five holes for a three-stroke victory in the scramble event.
Connor Cink, a Clemson freshman who preferred hockey over golf as a teen, put the duo in front with a 30-foot eagle putt at No. 14. His father capped the day with a 20-foot eagle putt at No. 18, the last of nine consecutive 3s in a back-nine 27. They finished with 11-under 61 for 22-under total.
Steve and Sam Elkington and Vijay and Qass Singh tied for second. The Singhs shot 61, and the Elkingtons 63.
WEB.COM TOUR: In La Quinta, Calif., Scott Pinckney shot 7-under 65 on Sunday on PGA West’s Nicklaus Tournament Course to take a one-stroke lead after the fourth round of the Web.com Tour Qualifying Tournament.
Pinckney, from Scottsdale, Ariz., had a 21-under 267 total after 72 holes in the six-day, 108-hole event that will determine player priority rankings for the season.
Former USC Aiken golfer Roberto Diaz shot 68 and is tied for 23rd.
Aiken’s Matt Hendrix had 70 and is tied for 49th.
Former Augusta State golfer Mitch Krywulycz posted 76 and is tied for 135th.