Thirty-three-year-old Kevin Stadler claimed his first PGA Tour victory in 239 starts at the Waste Management Phoenix Open, his 268 aggregate proving good enough to edge 54-hole leader Bubba Watson by one.  Stadler, the son of 1982 Masters champion Craig Stadler, initially moved into the final round lead with a birdie at the par-4 9th but fell behind again with a double bogey at the 11th.  He remained one back through the par-5 15th (where both he and Watson scrambled for par after hitting it in the water), then drew even when Watson bogeyed the short 16th from a front-left bunker.  The pair each carded two-putt birdies at the driveable par-4 17th before Watson handed Stadler the victory by bogeying the 438-yard 18th after driving in the rough.  The bogey dropped Watson into a tie for second with Canada’s Graham Delaet (who closed with a pair of weekend 65s), while Hunter Mahan and 21-year-old Japanese rookie Hideki Matsuyama shared fourth.  Though he is a four-time winner on the Web.com Tour, this was Stadler’s first major circuit triumph since taking the European Tour’s Johnnie Walker Classic (played in Australia) in 2006.  The victory made the Stadlers the ninth father-son pair to win on the PGA Tour and, with Kevin’s resulting ticket to Augusta, sets them up to be the first father-son team ever to appear in the same Masters...................Thirty-nine-year-old Stephen Gallacher became the first man to successfully defend his title at the Dubai Desert Classic, winning the event's 25th anniversary playing in a hotly contested shootout which at one point late in the final round saw 18 players within two shots of the lead.  Indeed, the crowded nature of Sunday's competition created much late drama as one man after another posted ever-lower finishing scores, beginning with Finland's Mikko Ilonen, who continued his strong form by closing with 64 to post a 13-under-par clubhouse total.  Next came France's Romain Wattel, whose birdie-birdie finish (for a 66) lifted him to 14-under-par - a number soon eclipsed by 21-year-old Argentinean Emiliano Grillo, who reached 15 under via a closing eagle that included an approach ricocheted off the spectator pavilion, followed by a 60-foot putt.  But the resolute Gallacher, who began the week with a rock-solid 66 in the company of superstars Rory McIlroy and Tiger Woods, authored the biggest stories on both Saturday and Sunday.  In many ways, Gallacher's Saturday work was the most impressive, for after seemingly drifting out of contention through 45 holes, he tied the all-time European Tour record by playing the back nine in nine-under-par 28, a stunning run that included seven birdies and an eagle.  Thus vaulting himself into a two-stroke 54-hole lead, Gallacher then staggered out of the gate with two bogeys Sunday and ultimately turned in four-over-par 39.  But birdies at the 11th and 13th got the ship righted, and when he added clutch birdies at both the 16th and the driveable 17th, he had climbed back to 16 under, allowing him a routine par 5 at the last to clinch the title.  Less happy, certainly, was a recently rejuvinated Rory McIlroy, who played spectacular golf en route to an opening 63 but stumbled thereafter, ultimately closing with a very disappointing 74 to tie for ninth.