Emerging from a crowded leaderboard upon which as many as 10 players had a chance to win, Chris Kirk recorded his fourth career PGA Tour victory with a one-shot triumph at the Crowne Plaza Invitational at Colonial.  Kirk’s week got off to an up-and-down start as he recorded nine bogeys during opening rounds of 68-69 over the par-70 Colonial layout, with his 137 total leaving him seven shots behind halfway leader Kevin Na.  After shooting 64-66, the streaking Na then added a 69 on Saturday to maintain a one-shot 54-hole lead over England’s Ian Poulter, with Kirk quietly carding a 65, which moved him within four.  Notably, neither Na nor Poulter figured too significantly over Sunday’s final nine, with Poulter turning in even par after a watery bogey at the 9th (he would ultimately shoot 70 to tie for fifth) and Na stumbling after double-bogeying the 9th (via a similarly watery approach), eventually carding a 72 to finish tied for 10th.  Their collective stumble left the door open to a host of pursuers, most notably hometown hero Jordan Spieth, who began the final round five shots in arrears but managed to hold a share of the lead after birdieing the 13th hole.  A three-putt bogey at the 16th would ultimately derail him, however, with a gutsy birdie at the last still leaving him one shot shy.  Brand Snedeker also looked like a potential winner after birdieing the 10th and 11th, but a bogey at the 13th proved costly, as did a missed 12-footer for birdie at the last.  All of which left Kirk to move into the lead via a birdie at the 15th, then hole a clutch seven-foot per putt at the last to clinch the title............Previously known for being the youngest U.S. Amateur champion ever (having won the title in 2009, at age 17, at Pinehurst), now-23-year-old Byeong-Hun "Ben" An scored as career-changing breakthrough victory at the BMW PGA Tour Championship, capturing the European Tour's showcase event in a six-shot runaway at Wentworth.  Competing against a field whose star power was slightly less than in most recent playings, An was largely an afterthought upon opening with a three-birdie, two-bogey 71 but launched himself into the thick of things on Friday afternoon by birdieing five of his first seven holes en route to a 64 which left him one shot off Francesco Molinari's halfway lead.  Molinari would add a steady 68 on Saturday to retain a share of the lead but by now An had caught him, birdieing the 17th and 18th to post a 67 to stand on 202, two ahead of Thailand's ageless Thongchai Jaidee.  Molinari, however, would falter on Sunday, going out in 36 before ultimately burying himself with a six at the 383-yard 16th.  An, meanwhile, stood three under par through 11 before eagling the 531-yard 12th, a decisive blow which put him far enough ahead to march uneventfully home thereafter.  Jaidee posted a closing 69 to share second with the even more ageless Miguel Angel Jimenez, who made history with his 10th career E Tour hole-in-one (and his second in two weeks) at the 154-yard 2nd hole on Saturday.  Chris Wood, who logged his own ace at the 179-yard 14th on Sunday, finished fourth, eight back.............Twenty-six-year-old Daisuke Kataoka claimed his first career Japan Golf our title at the Kansai Open, playing highly consistent golf in cruising to a three-shot triumph in this traditionally light-field event.  Kataoka was, in fact, very nearly a wire-to-wire winner, initially sharing the first round lead with South Korea's Jung-Gon Hwang after the pair each posted a 66, then joining another Korean, Won-Joon Lee, atop the Friday night leaderboard after adding a 67 that was keyed by an eagle at the 528-yard 10th.  Another 67 on Saturday left Katoaka one stroke behind winless 41-year-old veteran Kazuhiro Yamashita (who carded middle rounds of 64-65), but Yamashita would fade to a 74 on Sunday, allowing Kataoka to take control via five birdies in his first seven holes, then march home in even-par 35 to comfortably claim the victory............Long-hitting Dean Burmester won his second tournament of the 2015 Sunshine Tour season (and the fourth of his career) in an impressive performance, routing the field by five at the Lombard Insurance Classic.  Having not missed a Sunshine Tour cut since Novermber of 2014, Burmester began the 54-hole event by shooting a bogey-free 63 at the 6,715-yard Royal Swazi Sun Country Club, leaving him one behind opening round leader Jared Harvey.  The pair switched places after Burmester added a Saturday 65 (versus Harvey’s 67), and Burmester held his position early on Sunday by turning in two-under-par 34.  But on the final nine, Burmester amped up his attack, recording birdies at the 11th, 12th and 14th before eventually putting the title on ice with closing birdies at the 549-yard 17th and the 191-yard finisher.  With Harvey slipping to a closing 71 (sunk by a double-bogey at the 424-yard 15th), second plce was shared by veterans Peter Karmis (who birdied four of his last five holes to shoot 66) and Keith Horne, who made 10 birdies between holes 4-16 en route to a dazzling 62, which beat the Sunday field by three............Playing in only his third tournament since completing South Korea’s mandatory two years of military service, 30-year-old Jin-Ho Choi landed his first victory on the OneAsia Tour by holing an 18-foot birdie putt on the 72nd green to defeat compatriot Soo-Min Lee by one at the SK Telecom Open.  Previously a three-time winner on his domestic KPGA Tour, Choi opened with rounds of 68-68-70 to take a one-shot 54-hole lead over Jeung-Hun Wang (who bogeyed the par-3 17th en route to a third round 63) andf PGA Tour veteran Sung-Hoon Kang, who carded three consecutive 69s.  But Wang (73) and Kang (74) would fade from the picture on Sunday, allowing Choi to move into the lead after eagling the 530-yard 5th.  Bogeys at the 9th, the 12th and the short par-4 15th would ultimately leave him deadlocked with Lee (who’d birdied six of his last seven holes while shooting a Saturday 63 before playing up-and-down golf on Sunday), setting the stage for Choi’s title-clinching heroics at the 620-yard par-5 finisher.