Matt Kuchar and Gary Woodland gave the United States a 24th World Cup Sunday after the duo reeled in overnight leaders Ireland and held off the charge of fast-finishing England. The victory at the Blackstone course comes a week after Kuchar helped the United States win another team event, the Presidents Cup, in Australia. The US team fired a final round of 67 to take the title with a combined 24-under-par 264, two shots ahead of England and Germany in joint second place. Ireland's Rory McIlroy and Graeme McDowell started Sunday with a two-shot lead but endured a frustrating day and carded an even par 72 for a share of fourth. The American duo began the final round two strokes behind McIlroy and McDowell but moved to the top of the 28-nation leaderboard after birdies on the opening two holes and at the sixth and seventh. A bogey on 11 was the only blip but they rebounded with birdies on the 12th and 13th. England's Ian Poulter and Justin Rose produced the round of the day, a nine-under 63, to climb to second place on 22-under par with Germany's Martin Kaymer and Alex Cejka (69). Ireland shared fourth with Australians Richard Green and Brendan Jones (69), the Scottish duo of Martin Laird and Stephen Gallacher (66), and Joost Luiten and Robert Jan Derksen (68) of Netherlands. Chalmers bags Coolum title In Coolum, Australia, Greg Chalmers took out a three-man playoff to win the Australian PGA Championship on Sunday for his second major Down Under tournament victory in two weeks. The playoff trio finished with 12-under-par totals of 276 on the Hyatt Regency resort course. Otto wins Open Hennie Otto kept his nerve to par the 18th hole for a one-stroke victory over Austria's Bernd Wiesberger at the South African Open Sunday. Otto finished with an even-par 72 for a 14-under total of 274 to edge out Wiesberger and claim his second European Tour title. Wiesberger made his final-round charge with five birdies and a bogey in a 4-under 68 to move to 13-under. Overnight leader Otto birdied the 17th and held his nerve on the last for his first tour win since the Italian Open in 2008. Retief Goosen ended with a 73 for a share of sixth place at 10-under, while defending champion Ernie Els had three double bogeys in his 79 to crash to a tie for 69th at 5-over.