Less than a week after achieving world number one status for the first time in his career, Adam Scott greatly solidified his position atop the Official World Ranking by winning the Crowne Plaza Invitational at Colonial, defeating reigning PGA champion Jason Dufner on the third hole of sudden death.  Both Scott and Dufner began Sunday’s final round in a seven-way tie for 11th place, yet only two strokes behind leaders David Toms, Chris Stroud, Hideki Matsuyama and Chad Campbell.  Campbell (74) fell from contention with back-to-back double-bogeys at the 6th and 7th while Stroud and Matsuyama remained in the mix until getting derailed early in the final nine.  Toms, however, maintained a one shot lead at the turn before bogeys at the 10th, 13th and 14th ultimately dashed his hopes.  Scott and Dufner, meanwhile, mounted charges, with Scott getting to three under par on the day before double-bogeying the par-4 9th, then bouncing back with a three-under-par 32 on the back to close with 66, and a 271 total.  Dufner, meanwhile, stood four under through 10, missed a short par putt at the par-5 11th, then regained that lost stroke with a clutch 25-foot birdie putt at the last.  After both men parred the first extra hole (the 18th), Dufner stuffed his approach inside of five feet at the 17th but could do no more than extend the playoff after Scott holed from 14 feet before him.  Finally, upon returning to the 18th, Scott made his second straight birdie (this time from seven feet) to clinch the title..................In a week in which his much-publicized wedding plans with Danish tennis star Caroline Wozniacki were finally cancelled for good, Rory McIlroy seemed to find that bachelorhood indeed suited his golf game, as he roared home with a final round 66 to claim the European Tour's flagship event, the BMW PGA Championship at Wentworth.  The victory was his first worldwide in 2014 and seemed to put an exclamation point on the on-again, off-again relationship whose tribulations seemed at times to affect the performance of the former world number one over the previous 18 months.  McIlroy - like most of the field - seemed largely irrelevant on a Thursday which saw Denmark's Thomas Bjorn break the Wentworth course record with a stunning 62, enough to give him a two stroke lead over Ireland's Shane Lowry and three over Spain's Rafael Cabrera-Bello.  And indeed for two more days the event appeared firmly under Bjorn's control, particularly after he reeled off six consecutive back nine birdies en route to posting a Saturday 67, staking him to a five-shot 54-hole lead over Luke Donald and six over the resilient Lowry.  But having slept on so huge a lead, Bjorn struggled on Sunday, triple-bogeying the 418-yard 6th en route to an outgoing 39 that allowed numerous players back into the fray.  Lowry, for his part, hung close after eagling the 4th and birdieing the 5th, but an eventual double-bogey at the 470-yard 13th, followed by a bogey at the 15th, ultimately relegated him to second.  McIlroy, meanwhile, also eagled the 4th on his way to an outgoing 34, then birdied the 10th, 12th and 13th to move into the lead.  Finally, with his biggest victory since the 2012 PGA Championship laying within reach, he birdied both of the two closing par-5s to hold off Lowry by one..................Beginning the final round four shots off the lead, 35-year-old Koumei Oda roared home with a closing 67 to claim his seventh career Japan Tour title - and in dramatic fashion - at the Kansai Open.  Oda began the week quietly with a 71 before lifting himself into a 54-hole tie for third via middle rounds of 66-69.  Paired with the two men in front of him - leader Yoshinori Fujimoto and Tetsuji Hiratsuka - on Sunday, he closed to within three shots at the turn via an outgoing 34, then drew within one of Fujimoto with birdies at the 12th and 14th.  Both players bogeyed the 475-yard 15th, and when Fujimoto followed that by bogeying the 204-yard 16th, the pair were deadlocked.  Fours at the 17th brought them to the 72nd tee still square at which point Oda called forth his most brilliant golf, reaching the 563-yard 18th in two and holing his putt for eagle, pulling away to win by two..................Thirty-two-year-old Christiaan Basson won for the third time on the Sunshine Tour, posting a remarkable bogey-free 197 total to cruise to a five-shot triumph at the Lombard Insurance Classic.  A winner of the 2012 Royal Swazi Open on this same golf course, Basson began the week with a relatively quiet 69 before a second round 66 brought him to within two strokes of 36-hole leader Jake Redman.  But Basson's Sunday finale was a round to remember as he made three early birdies to turn in 33, then caught fire on the back nine, making two birdies and an eagle (at the 504-yard 12th) early, then birdieing his final three holes to come home in 29, for a career-best 62.  Among those tying for second, Redman held up nicely under the final round pressure, standing four under par through the 13th and ultimately closing with a fine 69 - yet he wasn't even within shouting distance.