Mark Alwin of Woodholme posted his second three-under-par 69 for 138 and holds a one-stroker lead heading into today's final round of the Middle Atlantic Open golf tournament.

Alwin, who played at Hobbit's Glen yesterday, went out in two-under 34 and came back in 35. On Monday, he opened with 69 at Allview.

Yesterday, Alwin scored his only bogey on the par-3 fifth. He hit a six-iron into a lateral hazard, took a penalty drop, chipped up and sank the putt for four.

"I hit a six-iron. When I was standing over it, I knew it wasn't enough club but I hit it anyway," Alwin recalled. "I tried to hit it too hard and I hooked it," said the leading money winner on the Middle Atlantic PGA circuit.

He birdied three holes on the front nine and had one birdie on the back, on the par-5, 17th. He was just off th green in two shots, chipped up and one-putted.

While on the PGA tour last summer, Alwin never picked up a check equal to the $2,200 he would collect by winning today.

Jim Thorpe, an unaffiliated pro from Falls Church, fired 31 on the back nine at Allview and finished with 68-139, one stroke behind Alwin.

Thorpe, who also played briefly on the PGA tour, said that in the past the bogey, double-bogey stretch he suffered early on the front nine would have caused temper problems and "That back nine 31 would have been 41."

Thorpe's brother Chuck, of Alexandria, shot 67 at Allview, the tournament's low round, and is tied for fourth at 142 with Tony Dorsett's first cousin, Bruce Dorsett of Northhampton, and David Jimenez of Wintergreen.

Pro Brian Staveley of Eisenhower, who won this tournament as an amateur, shot 70 at Allview and is alone in third place at 141.

he low 70 pros and 30 amateurs will play today's final round at Hobitt's Glen.