PHILADELPHIA, April 12 (Ticker) -- The way the Philadelphia 76ers were scoring points, you would have thought Allen Iverson made an early return.

Dikembe Mutombo matched a season high with 24 points and Derrick Coleman added 21 as the 76ers reached triple digits for the first time since their superstar went down with a 100-89 victory over the Washington Wizards.

In its first 10 games since Iverson suffered a broken hand, Philadelphia went 5-5 and approached 100 points just once, a 99-79 victory over lowly Chicago. Without the NBA's leading scorer, it has been held to 80 points or less three times, including Wednesday's 90-77 loss at Washington in which it went scoreless over the final 4 1/2 minutes.

The Sixers were further hampered by the absence of Aaron McKie, who averages nearly 12 points per game but sat out with a scratched eye. But the offense clicked, reaching the century mark for the first time since a 105-103 loss to Orlando on March 17.

NBA TV highlights from Wizards-Sixers: 56k | 300k Dikembe Mutombo made 10 of the 14 shots he took, and pulled down 16 boards. Jesse D. Garrabrant NBAE/Getty Images

"A lot of it had to do the mistakes we made in Washington," Mutombo said. "There were a couple of errors down the stretch and we didn't run the offense the way coach wanted us to do. We came out tonight and made sure we got the ball in the hands of those who were ready to put the ball in the basket. We did that very well tonight."

"We moved the ball pretty good," added guard Eric Snow, who had nine assists. "We had some easy looks and we executed well. We tried to take advantage of the mismatches down low. We tried to get the ball low and get good shots. When they helped, we moved the ball. We were able to get good looks and shoot a high percentage."

Philadelphia got a big boost from the return of Speedy Claxton, who missed the previous four games with a concussion. Claxton started and collected 19 points and a career-high nine assists.

"When I got hit, I knew I was fine," Claxton said. "Once I started playing I didn't really feel tired or sluggish. I wasn't getting dizzy, so I knew I was fine."

"To have Speedy back, I told him that I really believe that if he had been healthy, we had a chance to win every game," Brown said. "He made such a big contribution. It was a great win for us."  Matt Harpring added 14 points for Philadelphia (42-37), which improved to 15-1 when scoring at least 100 points. Its magic number for clinching a fourth consecutive playoff berth was reduced to one.

Richard Hamilton scored 21 points and Courtney Alexander added 20 for the Wizards (36-44), who were officially eliminated from playoff contention.

"I think overall we had a good season; we've almost doubled our wins from last season," Alexander said. "We're obviously a better team at this point in the season than we were last year; we've made strides. Everyone on this team had one common goal and that was to be in the postseason, so it's going to be disappointing."

Mutombo scored six points in a 15-6 surge that closed the third quarter and gave the Sixers a 79-70 lead. The Wizards opened the final period with a 12-4 burst, closing to 83-82 on a three-point play by Etan Thomas with 7:47 remaining.

Raja Bell made consecutive jumpers and Mutombo made a baseline shot to rebuild the lead to 89-82 with 6 1/2 minutes left. Hamilton's layup and two free throws pulled Washington within 92-88 with 3:02 to play, but Coleman had a baseline jumper and a 3-pointer to push the advantage to 99-89 with 1:14 to go.

"It was just a matter of settling down and making sure that we get an attempt at the basket each time we came down the court," Coleman said. "Execution was key for us down the stretch.'  "We developed a mentality of keep fighting and keep plugging," Snow said. "Early in the season we had a little slippage as far as that."

Mutombo made 10-of-14 shots and Coleman sank 8-of-13. Mutombo added 16 rebounds for the Sixers, who held a 47-33 advantage on the glass.

Tyronn Lue scored 14 points and Thomas added 12 and 11 rebounds for the Wizards, who shot 46 percent (33-of-72).