Britain's Justin Rose carded a two-under-par 69 to open up a commanding four-stroke lead after the third round of the BMW Championship Saturday and give himself a shot at the season-ending $10 million jackpot. Adopting a gambler's all-or-nothing approach, Rose surged clear of the field with a red-hot putter and some daring shot-making to finish the round at 13-under 200. Australian John Senden was outright second at nine-under after recovering from a horrendous start to his third round. He bogeyed three of his first five holes but rallied on the back nine picking up four shots for a 70. Lurking a further shot back is another Australian, Geoff Ogilvy, who needed a birdie on his final hole at the Deutsche Bank two weeks ago just to earn a spot in the 70-man field for the BMW. The former US Open champion made the most of his opportunity by returning a 68 to join American Bill Haas (69) five shots off the pace. Britain and Ireland win Seve Trophy Britain and Ireland held off a last day rally by Continental Europe to win the Vivendi Seve Trophy Sunday. Paul McGinley's team went into Sunday's singles needing just three of the ten points on offer, but by midday the scores were level at 11-and-a-half points apiece. Britain and Ireland secured victory after wins for Scott Jamieson, Ian Poulter and Mark Foster, with the final match between Ross Fisher and Europe's Peter Hanson finishing all square. The final result was Great Britain and Ireland 15-and-a-half Continental Europe 12-and-a-half. Thompson takes charge US teen Lexi Thompson, trying to become the youngest winner in the LPGA's 61-year history, fired a five-under par 67 Saturday to seize a five-stroke lead at the Navistar Classic. Prodigy Thompson, who turned 16 last February, finished 54 holes on 15-under par 201 at the $1.3 million event and was poised to shatter LPGA age marks and collect her first elite-level victory. South Korean Meena Lee was second on 206 with England's Karen Stupples, Becky Morgan of Wales and American Tiffany Joh sharing third on 208, seven adrift of Thompson's pace. It's the second time this season that Thompson, not yet an LPGA member, has challenged for a record-smashing title. Thompson has successfully petitioned for a place in this year's LPGA qualifying tournament.