Qualifying medalist David Santoro of Arlington held off a rally by Joe Hoffman of Clinton and scored a 1-up victory in the quarterfinals of the 36th Bubby Worsham Memorial yesterday at Norbeck Country Club.

Santoro, a rising senior at O'Connell High School, will play Hoffman's younger brother, Dan, today at Argyle Country Club in the first semifinal at 7:30 a.m., followed by Mike Svec of Potomac against Emmett Schoolboy champion Jon Hurst of Woodbridge. The final will follow later today.

Santoro appeared in control after moving to a 4-up lead after 12 holes, but Hoffman, a University of Maryland player, rallied to win four straight holes and tie the match.

Hoffman then bogeyed the par-5 17th hole, and Santoro parred the 18th hole to escape with victory.

"That was a little closer than I wanted it to be," said Santoro, who qualified at 71 Monday. "I kind of fell apart for a little while."

Hurst had a 3-up lead after eight holes against David Gildea of Bethesda, but Gildea fought back to pull within one, heading to the par-4 18th hole. Gildea had a chance to send the match to extra holes, but three-putted from 30 feet and made bogey, allowing Hurst a 1-up victory.

Dan Hoffman defeated Jason Raivel of Bowie, 4 and 3, and Svec beat Doug Ridgway of Rockville by the same margin.