Mike DelRocco played the final 13 holes of Woodmont's south course in four under par and carded 70 to win the medal in qualifying for the 21st Bobby Gorin Memorial Junior golf tournament yesterday.

DelRocco, of Chantilly, who turned 17 Thursday, was low scorer among 91 golfers shooting for the 16 points in the 16- and 17-year-old division.

"I was two over par after the fifth hole and I thought I was pretty much out of it," DelRocco said.

But DelRocco's putter got as hot as the weather and he birdied Nos. 7, 8, 10 and 15 to win the medal by two strokes.

DelRocco caddied for Barry McCarty when McCarty won the District Amateur Sunday. DelRocco failed to quality for that tournament when he hit 15 greens in regulation on his home course but could not master Chantilly's slow greens. Today he found Woodmont to his liking.

Mike Reese of Congressional, Tom Plaine of Montgomery Village and Sam Wallace of Golden Horseshoe in Williamsburg were next at 72.

Ted Narleski of Pennsauken, N.J., birdied the third hole to survive the six-way playoff for one spot among players who shot 77.

Mike Hoss, a strong player from Evergreen, failed to qualify after he missed a one-foot putt that would have given him a 75 for the day. He batted the ball twice more in frustration and finished with 78.

Two rounds of match play are scheduled today. The semifinals are Wednesday morning, followed by the finals that afternoon.