South African Tim Clark eagled the par-five 16th to surge into a four-way tie for the lead midway through Saturday's third round of the St. Jude Championship. Bidding for his maiden PGA Tour title, Clark spectacularly struck his second shot from 250 yards to four feet and coolly sank the putt to get to five under par for the day. That left him at four-under overall, level with Americans Bill Haas and Dean Wilson and Australian Gavin Coles. On another sweltering day at the TPC Southwind, Haas had completed 12 holes while Wilson and Coles had nine remaining. Canadian Stephen Ames, after 14 holes, was a further stroke adrift in a tie for fifth with Germany's Alex Cejka, after 10, and American Marc Turnesa, after nine. Six players had shared the overnight lead at three under; Americans Tommy Armour III, Michael Bradley, Wilson, Turnesa and Jason Dufner, plus Australian Coles. With temperatures peaking at around 35 degrees Celsius and winds gusting up to 50kph, the battle for supremacy in the third round resulted in a wildly fluctuating leaderboard. Singh four shots clear In Vienna, India's Jeev Milkha Singh took a four-stroke lead on Saturday after the second round of the Austrian Open, a tournament reduced to 54 holes after rain ruined the first day's play. The 36-year-old 2006 Volvo Masters winner signed off his round of eight-under 63 on Saturday by rolling in a 40-foot eagle putt on the ninth, his 18th hole, to move to 15 under par. After compiling a two-round total of 127, Singh heads Britain's Simon Wakefield, who carded his 65 by picking up five shots in six holes from the 12th. Australian Peter Fowler, who celebrates his 49th birthday on Monday, is a further stroke back after a 67, sharing third place with New Zealander Mark Brown. Brown, the Johnnie Walker Classic winner earlier in the season, picked up six shots in his last six holes as he carded a 63. Leader Singh collected six birdies to go with his closing eagle to put himself on course for his third European Tour title after two second places this season. Last year's winner Richard Green made a valiant attempt to make the final round when he struck a stunning four-iron shot from the lakeside bunker on the 18th. However, the left-handed Australian's nine-foot eagle putt rolled agonizingly past the cup to leave him missing the cut by one stroke. Denmark's Soren Hansen still has an outside chance of chalking up a win before flying to the US Open next week after a 65 left him in a share of fifth place on nine-under with Briton Richard Bland, who carded a 67 and Irishman Gary Murphy, who posted 69. Wright, Hjorth share lead In Maryland, Lindsey Wright shared the lead with Maria Hjorth midway through the third round of the LPGA championship on Saturday after a double bogey at the par-three seventh by overnight leader Lorena Ochoa. Australian Wright of Australia (10 holes) and Sweden's Hjorth (14), who was six under par so far for the day, both stood at 10 under par in a crowded leaderboard on a sizzling hot day at Bulle Rock golf course. Annika Sorenstam of Sweden carded three birdies to move to nine under par, a total shared by American Brittany Lang. World number one Ochoa shared the lead with Wright before the seventh where the Mexican put her tee shot into the left bunker and came out short in the greenside rough before pitching on and taking two putts for a five. Wright, who began the day one shot behind Ochoa, reached 11 under par with a birdie at the par-five eighth before making bogey at the ninth. Ochoa also regained a stroke with a birdie at the par-five eighth hole, where she left a 40-foot eagle putt on the edge of the cup, to stand at eight under par at the turn along with Lee Jee