By Tony Jimenez
ASH England (Reuters) - Dutchman Joost Luiten kept up his 100 percent record at this week's Volvo World Match Play Championship, beating Graeme McDowell by two holes on Friday to send the title holder crashing out of the event.
Luiten, who finished off the Northern Irishman with three birdies in the last four holes of their round-robin encounter, next meets Spain's Pablo Larrazabal in the quarter-finals on Saturday.
World number five Henrik Stenson, the highest-ranked player in the field, also finished top of his group after easing past last year's runner-up Thongchai Jaidee of Thailand 2 & 1.
Stenson will face Jonas Blixt in the last eight after his fellow Swede won a titanic struggle with 2006 champion Paul Casey at the 19th hole.
The other two quarter-finals will see Frenchman Victor Dubuisson taking on Mikko Ilonen of Finland and American Ryder Cup rookie Patrick Reed up against South African George Coetzee.
(Editing by Toby Davis)