DOHA — South Africa's Branden Grace won the Qatar Masters by one shot from Scotland's Marc Warren at the Doha Golf Club Saturday. After a close battle for most part of the day, Grace landed an eagle on the 16th hole to momentarily edge clear of the field but could only manage a par on the 17th, which Warren birdied to draw level. But with the final hole remaining, Grace almost produced another eagle, getting within three feet for his fourth birdie of the day to log a final round of 66. That gave him an aggregate of 19-under-par 269 and the title as Warren could only par the final hole after missing the fairway and landing in the rough. Saturday's win was Grace's sixth European Tour title as he continued his excellent start to the season, having already won the Alfred Dunhill Championship. All four of his previous titles came in 2012 after which he endured a two-year drought before his second win in four starts this season gave him a ticket to the Masters in Augusta. Austrian Bernd Wiesberger, who was part of a quartet who shared the overnight lead, was third with 271, while England's Eddie Pepperell was fourth on 272. Kuchar leads Humana Matt Kuchar fired an eight-under-par 64 to take the lead Friday at the PGA Tour Humana Challenge on a day when fellow American Ryan Palmer flirted with a 59. Kuchar, who began on the back nine, rolled in four birdies on one five-hole stretch beginning at No. 12 and has a one-shot lead over Michael Putnam after the second round of the $5.7 million event. Kuchar is at 15-under 129 for 36 holes. Palmer appeared at one point to be headed for a 59 but ended with a record-tying 11-under 61. He is tied for seventh with three others after his spectacular round on the Jack Nicklaus Private Course at PGA West in the California desert. Over the first three rounds, players will alternate between playing the Arnold Palmer and Jack Nicklaus Private Course, along with the La Quinta course. Sunday's final round will take place on the Palmer Course. Kuchar played his final five holes at even par, making his first and only bogey on number six to go along with another birdie on the eighth. “Today was better even than yesterday,” said Kuchar, a seven-time winner on the PGA Tour and coming off a tie for third at the Sony Open in Hawaii last week. “I had a nice round over at La Quinta and that may be the toughest of the three courses — just how tight and narrow it is. (Nicklaus Course) you have a little more space and reachable par-fives.” First-round leader Putnam carded a five-under 67 and is tied for second with 2010 champion Bill Haas (63). Justin Thomas (63), Nick Watney (64) and Scott Pinckney (67), all of whom played the Nicklaus Course Friday, are tied for fourth at 13-under 131. Defending champion Patrick Reed finished his second round tied for 22nd at nine-under 135 after shooting a two-under 70. Palmer, who started on the back nine, began the day at one-under and eight shots back, but he quickly moved up the leaderboard. After an eagle on 12, Palmer tallied three straight birdies from 13 and followed those up with another eagle on the par-five 16th. Palmer kept rolling with another trio of birdies on 17, 18 and one. Palmer's quest for a 59 included birdies on number four and six. Heading to the par-five eighth, Palmer needed to finish eagle-birdie to shoot 59. He birdied eight and then made par on the ninth when his birdie putt rolled by the hole. — Agencies