HOUSTON: San Antonio's losing streak hit a worrying six games when the Spurs lost 119-114 to the Houston Rockets in the NBA Friday. The Spurs have already clinched a playoff spot but look badly out of form approaching the postseason, losing six straight for the first time since 1996-97. San Antonio, down 11 points late in the third quarter, forced overtime on a free throw by Tim Duncan with 18 seconds left in regulation that tied it 108-108. Houston's Kevin Martin took over in overtime, scoring nine of Houston's 11 points, finishing with 33 for the game. Hawks 88, Celtics 83: In Atlanta, Al Horford capped his 35th double-double with a key tip-in with 7.9 seconds remaining to lift Atlanta over Boston. Trail Blazers 98, Thunder 91: In Portland, the hosts snapped Oklahoma City's five-game winning streak. LaMarcus Aldridge scored 32 points and Nicolas Batum added 19 points for the Blazers, who have won seven straight at the Rose Garden. Portland sat in the sixth spot in the Western Conference, a game ahead of New Orleans and Memphis. Lakers 96, Jazz 85: In Salt Lake City, Los Angeles erased a 17-point first-half deficit to eliminate Utah from the playoff race. Grizzlies 93, Hornets 81: In New Orleans, Memphis held New Orleans to a season-low 12 points in the first quarter and went on to a comfortble win. Bulls 101, Pistons 96: In Auburn Hills, Michigan, Derrick Rose scored 13 of his 27 points in the first quarter and had a key assist in the final minute to lead Chicago over pesky Detroit. Magic 89, Bobcats 77: In Orlando, Dwight Howard had 26 points and 14 rebounds to power Orlando to victory over Charlotte. Heat 111, Timberwolves 92: In Minneapolis, Miami turned a tight game with Minnesota into a rout with a third-quarter surge. Nuggets 99, Kings 90: In Sacramento, Raymond Felton scored 14 of his 17 points in the final quarter to secure Denver's fifth straight win, downing Sacramento. Suns 111, Clippers 98: In Phoenix, the hosts ended a four-game losing skid by overcoming Los Angeles. Pacers 89, Bucks 88: In Indianapolis, Indiana solidified its playoff prospects while pushing Milwaukee to the brink of elimination. 76ers 115, Nets 90: In Philadelphia, the hosts clinched a playoff spot with an easy win over New Jersey. Wizards 115, Cavaliers 107: In Washington, Andray Blatche tied a career high with 36 points and had a career-best 19 rebounds as undermanned Washington defeated Cleveland.