DeMATHA-ST. JOHN'S, PART V?: No. 2 DeMatha and No. 10 St. John's, which have split four thrilling meetings this season, could meet again this weekend in the eight-team Alhambra Catholic Invitational basketball tournament in Cumberland, Md. DeMatha (28-2), the defending tournament champion, meets Cardinal Dougherty of Philadelphia in a first-round game Thursday at 7 p.m. St. John's (26-7) meets Bishop McGuiness of Winston-Salem, N.C., at 4 Thursday. The local teams are in opposite brackets, and if they win two games, would meet in Saturday's 7:30 p.m. title game.

RECORD SETTER: Jermaine Lewis of Eleanor Roosevelt, who is headed to the University of Maryland on a football scholarship, set a high school track and field indoor meet record when he won the 200-meter dash in 21.40 seconds last weekend in Syracuse. The old record was 21.52, set by Derrick Love of Meade. Joe Beamer of Suitland won the 400 in 48.3. Ebony Robinson of Eleanor Roosevelt finished second in the 55 meters (6.97).

ALL-STARS: The Prince George's Coaches boys and girls all-star basketball games will be played Saturday at Prince George's Community College. The girls game starts at 6 p.m. and the boys game is scheduled for 8. Coaches for the 4A teams will be Rich Grabisch of Laurel (girls) and Tom Hendershot of Bowie (boys). . . . The Montgomery County Coaches Association boys all-star game will be Thursday at Kennedy, starting at 7 p.m. Paul DeStefano of Seneca Valley and Dan Harwood of Magruder will be the coaches.

GIRLS STARS AT COLE: The Maryland Women's Coaches Association all-star game Sunday at Cole Field House (4 p.m.) will feature seniors from public and private schools across the state. Proceeds from the event will go to Special Olympics.

GOING TO TOGO: Elizabeth Seton track coach Carlos Alexander leaves March 26 on a three-week trip to Togo in west Africa, where he will help coach young athletes. Anyone willing to contribute equipment can contact Alexander at Seton.