CHARLOTTE, N.C., Nov. 13 (AP) -- Gerald Wallace scored 19 points, Jason Richardson added 18 and the Charlotte Bobcats continued the Miami Heat's early season misery with a 91-76 victory on Tuesday night.

Emeka Okafor had 13 points and 10 rebounds for the Bobcats, who dominated the punchless Heat. Playing again without Dwyane Wade, Miami often struggled to just get a shot off and dropped to 1-6.

Shaquille O'Neal had 17 points and six rebounds, but got little help. While O'Neal shot 7-of-14, the other four starters combined to shoot 9-for-34 as Wade watched from the bench in a tan jacket.

With Wade missing his seventh straight game because of offseason knee surgery, the Heat assured they'd remain the NBA's lowest-scoring team by shooting 38 percent, including 1-of-7 from 3-point range.

The Bobcats beat the Heat for the second time in a little over a week and the fourth straight time dating to last season by continually racing past the older Heat in transition.

Richardson and Wallace, each shooting less than 40 percent coming into the game, combined to make 15 of 26 shots and grab 15 rebounds. Okafor had his sixth double-double in seven games.

Okafor brought the small crowd to its feet when he blocked O'Neal in the lane late in the third quarter. Matt Carroll then hit a 3-pointer on the ensuing possession to put the Bobcats ahead 67-42.

Charlotte outscored Miami 31-12 in the third quarter, finally providing a little offense in a game featuring the two lowest-scoring teams.

They combined for 12 field goals and 39 missed shots in the first quarter as the Bobcats took a 17-12 lead.

The Heat didn't reach 20 points until 6:49 remained in the second quarter and fell behind 38-25 on a Richardson alley-oop dunk. But the Heat finally found some offense by pounding it inside to O'Neal and got within 40-35 at halftime on Udonis Haslem's layup.

But the Heat had nothing in the second half, bringing back memories of when they scored a team record-low 56 points in Charlotte in 2000 against the Hornets. They didn't surpass that total until 5:39 left, thanks to a combination of missed jumpers, layups and airballs.

Ricky Davis shot 2-for-12, and Haslem 4-for-13 as coach Pat Riley could only pace the sideline without his star on the floor.

Wade worked out during the day, but was held out of again as he tries to get his left knee to 100 percent.

Notes: O'Neal was 3-of-6 from the foul line. One of his makes banked in. ... Riley named Haslem team captain. "We didn't have any official captains last year, but Udonis is really the heart and soul of this team now,'' Riley said. ... Bobcats coach Sam Vincent said he's "pushing'' forward Othella Harrington to test his left knee for the first time Wednesday in Atlanta. Harrington is recovering from arthroscopic surgery.