Maurice Cheeks scored a season-high 30 points and Moses Malone had 28 last night as the streaking Philadelphia 76ers won for the 17th time in their last 19 games, beating the Cleveland Cavaliers, 121-114, in Richfield, Ohio.

Philadelphia, which has won four straight, scored on its first 13 possessions in racing to a 29-15 lead.

Julius Erving scored 22 points for Philadelphia and Charles Barkley had 17 points, 10 rebounds and nine assists.

World B. Free led the Cavaliers with 28 points. Rookie Keith Lee, making his first NBA start, scored a career-high 25. Celtics 135, Warriors 114

Larry Bird led a balanced scoring attack with 25 points as Boston romped to its seventh consecutive victory by beating visiting Golden State.

Bird, who sat out the fourth period, was joined by six teammates in double figures as the Celtics improved their home record to 19-1 and handed the Warriors their 23rd loss in 25 road games.

Chris Mullin led the Warriors with 24 points. Bucks 117, Pacers 92

Charles Davis had a game-high 24 points and career-high 13 rebounds and Terry Cummings scored 22 points to lead visiting Milwaukee.

Milwaukee had a 64-40 halftime lead. The Pacers got back to within 11 points at 85-74 with 10:38 left in the third period but came no closer.

The Pacers, who have lost nine of their last 10, were led by Wayman Tisdale with 16 points. Hawks 117, Knicks 100

Dominique Wilkins scored a game-high 36 points and Glenn Rivers had a career-high 16 assists to lead Atlanta over visiting New York.

Patrick Ewing led the Knicks with 24 points. Bill Cartwright, playing in his first game in two seasons, had 11 points for New York. Pistons 129, Mavericks 120

Isiah Thomas opened the fourth quarter with 17 consecutive points and finished with 28 to lead Detroit to victory in Dallas.

Thomas hit his first eight shots of the fourth quarter as Detroit went from a 98-94 deficit to a 111-105 lead.

Kelly Tripucka led Detroit with a season-high tying 32 points before a Reunion Arena sellout crowd of 17,007. Dallas' Mark Aguirre led all scorers with 35 points. Spurs 113, Nuggets 98

In Denver, Artis Gilmore scored 23 points and had 19 rebounds as San Antonio won on the road.

Mike Mitchell scored 22 points for the Spurs and Alvin Robertson had 21. The Spurs held Alex English, the NBA's leading scorer, to 14 points. Clippers 120, Lakers 109

Marques Johnson scored 22 points and Kurt Nimphius had 19 as the Clippers beat the visiting Lakers for the first time in 10 games since moving from San Diego to Los Angeles for the 1984-85 season.

The Lakers, playing without starters Magic Johnson and Kurt Rambis, dropped their second straight game for the first time since Jan. 16, a985. James Worthy had 26 points for Los Angeles.