DES MOINES, Iowa -- It has been 13 years since Duffy Waldorf won a tournament. Waldorf could easily end that streak Sunday with one more proficient round. Duffy Waldorf shot a 5-under 67 on Saturday to take a one-stroke lead after the second round of the Champions Tours Principal Charity Classic. Waldorf, the only player in the field to break Sunday in both rounds, had an 8-under 136 total. Bart Bryant and Jay Don Blake were tied for second. Bryant had a 64, and Blake shot a 66. Russ Cochran was 6 under after a 67. Tom Lehman led a group of five at 5-under 139. The 50-year-old Waldorf is winless in 12 career starts on the 50-and-over tour. He took advantage of calm conditions at the Wakonda Club to post a bogey-free round after opening with a 69 for a share of the first-round lead. Waldorf won four times on the PGA Tour, the last coming at the Disney Classic in 2000 when he shot a final-round 62. "The way the course is set up and the guys in the field, theyll be plenty of guys right there who are going to make a run," Waldorf said. "I feel like I just have to play a good solid round and hopefully itll be good enough to win." Jay Haas, a three-time winner in the event, was 3 under after a 70. Points leader Bernhard Langer shot a 75 to drop 11 strokes back. Waldorf is attempting to become the third straight rookie to win on the Champions Tour. He put himself in position for his first career victory on the senior circuit with a consistent and largely mistake-free round. While fellow Friday leaders Scott Hoch and Dan Forsman fell off the pace, Waldorf had four birdies in a five-hole stretch to seize a slim lead. "Its out there. If you put the ball in the fairway, hit good approaches youve got birdie chances for sure," Waldorf said. "The key is to play well tee to green, and then hopefully roll in some birdie putts." The 50-year-old Bryant missed all of 2010-11 because of a left wrist injury that required a pair of fusions. He played sparingly on the PGA Tour last season, finishing in the top 50 just once. Bryant shot a 1-over 73 on Friday. But Bryant also avoided a bogey -- which no golfer could do in the first round -- and he birdied all four par-5s for a competitive course record. "I was in the fairway, which is key out here on all the holes because the rough is fairly penal," Bryant said. "My wedge had just been pitiful all year, and Ive worked really hard on it and Im starting to hit some really good wedge shots. My par-5 play had not been very good at all for that reason, and now Im starting to make some birdies on the par 5s." Blake also shot a bogey-free round, racking up birdies on three straight holes on the front nine. "Theres a lot of guys up there. Itll be a battle. Its fun," Blake said. A whopping 37 players were within three strokes of the lead after the opening round. That number was whittled down to nine Saturday, but it should still be a fluid leaderboard in the final round. "A 64 out here is a very good round. But it wouldnt shock me if someone shot a 63," Bryant said. "I dont have illusions of being able to go and shoot anywhere around par and have a chance. Its going to take a really good round." Fred Funk withdrew before Saturdays second round because of vertigo. Funk shot a 76 on Friday. Wholesale Nike Shoes Australia . Supported by three-run homers from Jayson Werth and Wilson Ramos, the young right-hander went seven strong innings in the Washington Nationals 8-4 victory over the Arizona Diamondbacks on Friday night. Nike Shoes Australia Online .com) - The Chicago Blackhawks aim for their third three-game winning streak of the season when they host the struggling Edmonton Oilers in Sundays battle at the United Center. http://www.nikeshoesaustraliacheap.com/ . The 17-year-old native of Marystown, N.L., pulled out of Skate Canada International last month in Saint John, N.B., with the same problem. Nike Shoes Australia Mens .Y. -- Buffalo Bills coach Doug Marrone has drawn on his Syracuse connections once again by hiring Rob Moore to take over as receivers coach. Cheap Nike Shoes Australia . The giant slalom world champion slipped during her first run in the morning, landing on her back and then twisting forward before getting her leg caught in the protective material on the side of the slope.Michael van Gerwens fine year continued with his 23rd tournament victory as he retained the Ladbrokes World Series of Darts Finals on Sunday night, beating Peter Wright for a second successive year. Van Gerwen had defeated Wright 11-10 in the inaugural World Series of Darts Finals a year ago, and the world No 1 held his nerve to win the £30,000 first prize with an 11-9 victory. Watch NOW TV! Watch Sky Sports for only £6.99. No contract. The lead changing hands three times as Wright eked out an early 4-3 advantage only to see van Gerwen win five of the next six legs to move 8-5 ahead. He also took two of the next three to edge to the brink of victory before Wright took three successive legs to get the boisteroous crowd on their feet.dddddddddddd Peter Wright came up short on a night of high drama in Scotland The Dutchman, though, posted his ninth 180 before finally sealing the win on double two.This is another great win for me, said van Gerwen. I had to work really hard - Peter played really well but Im really glad I won the game.Wright added: When you come home to Scotland, I try and play well for the fans and I think I do.Many people out there believe that when I win my first TV title Im going to win lots after that, and I believe that too. Also See: Sky Bets darts odds On Sky TV Schedule/Results Features ' ' '