Several of Maryland's best scholastic football players have decided against playing in the "Big 33" game against Pennsylvania's all-stars on July 20 in Hershey, Pa.

All-Met running back Mike Anderson of DeMatha and Churchill linemen Brian Holloway and Tom Ladd have turned down offers to play to avoid the possibility of injury.

"Why should those guys play?" said Churchill Coach Fred Shepherd. "They've got everything to lose by risking injury in a game like this."

Anderson has signed with Maryland, and Holloway, the younger brother of New England Patriots offensive tackle Jonathan Holloway, will attend Stanford. Ladd has accepted a scholarship to last season's No. 1 ranked team, Brigham Young.

Their absence, particularly that of Holloway and Ladd (both 6 feet 5 and 245 pounds), and the loss of several other blue-chippers throughout the state will weaken the Maryland line, which was considered thin before their refusals.

According to DeMatha Coach Bill McGregor, don't expect the Pennsylvania team to be similarly affected.

"Kids in Pennsylvania grow up hoping to be asked to play in that game," said McGregor, who played at Pittsburgh's Central Catholic High. "No one from Pennsylvania ever turns down a chance to play in the 'Big 33' game. They'll definitely have the best kids in Pennsylvania playing for them."

*

Three-time state wrestling champion Stanley Proctor of Bowie has accepted an athletic scholarship to the University of Maryland. Proctor finished his four-year varsity career with a 118-5 record and set a Maryland Public Secondary School Athletic Association record for most victories.

*

Defending Maryland boys singles tennis champion Billy Schief of Whitman has yet to play a match this spring. A sore right shoulder has prevented him from playing since last October. He remains hopeful, however, and hopes to be playing in the county tennis tournament next month.

*

DuVal's Bruce Ford is obviously no fluke. After combining for a no-hitter three weeks ago, he followed up with a 13-strikeout, one-hit effort against Northwestern. Last Thursday, Ford pitched an 11-strikeout, three-hitter to lead the Tigers to a 3-1 victory over Northwestern . . . Georgetown Prep is the latest Interstate Athletic Conference school to field a lacrosse team. Jamie Lousan is the coach of the Little Hoyas, who'll play at the junior varsity level this year . . . Montgomery County girls basketball teams may spend $4,000 to buy smaller basketballs for girls teams. Used by NCAA women's basketball teams this past year, the National Federation of State High School Associations has ruled them mandatory by 1988-89 . . . Surrattsville running back/safety Billy Greene will attend Delaware next year . . . Paint Branch's Brad Irvin set two tournament records in winning the senior boys division of the Greater Washington Duckpin Association's Youth Singles tournament in Suitland. He had a 191 single game and 489 scratch set . . . The area's hottest hitter? Richard Montgomery softball catcher Dana Elliott went 9-for-9 with five home runs and 13 RBI in her last two games.