David Jimenez posted 70 early in the day and let increasing winds and the many ditches and out-of-bounds markers that dot Reston Golf and Country Club take their toll on others. He thus took a one-stroke lead in the 54-hole Virginia Open yesterday.

"You guys are wasting your time with me. My 70 is not going to be the low score today," wrongly predicted the former Woodment pro, now head man at Wintergreen, 20 miles west of Charlottesville.

Jimenez, who with Chi Chi Rodriguez represented Puerto Rico in World Cup matches for six years, sank an eight-foot putt for birdie 3 on the par-4 opening hole. He registered his other birdie with two putts on the par-5 11th. The only green he failed to hit in regulation or better was the dog-leg par-4 third. He pulled his drive left into a ditch and took his only bogey.

Amateur Dave Howard of Pinecrest birdied three of the first five holes but took double-bogey 6 on the seventh after he almost beheaded the forecaddy with his tee shot and landed in thick bramble lining the right side of the fairway.

"I was thinking of shooting the front nine in four under," Howard said. "I had just come off a par on the toughest hole on the course (No. 6, a tight 473-yard par 4 said Howard, recalling his thoughts before hitting his wretched tee shot.

Howard added a birdie at 11 and tied for second at 71 with Martinsville pro George Bullock, who parred his last 10 holes.

Mark Lawrence of Richmond, who plays for the University of Maryland, was one under after nine holes. Lawrence drove out of bounds on the 10th onto someone's well manicured back yard. On the final hole, his drive found a ditch an he managed bogey. Lawrence tied at 72 with District of Columbia Amateur finalist Rob Black of Army Navy, Jim Miller of Washington, Ralph Anthony of Lynchburg, Pete Van Pelt of Army Navy and John Yeagley of Westwood.

Randy Banks of International scored a hole in one on the 15th with a seven-iron en route to 76.

Defending champ Bob Pest of Lecust Grove, Va., and Wayne DeFrancesca, winner of last week's District Amateur, shot 77s in the field of 120.