The Oklahoma City Thunder beat the San Antonio Spurs for the third time this season to take over as the Western Conference's top seed.
Kevin Durant continued his remarkable run, scoring 36, while Reggie Jackson chipped in with a 27 to see out the win.
Luol Deng was on the losing side as the Chicago Bulls got the better of the Cleveland Cavaliers less than three weeks after he was traded to the Cavs.
The forward struggled to get going against his former team, scoring twice from 11 shots from the field to finish with 11 points.
DJ Augustin and Taj Gibson combined for 53 to lead the Bulls to a comfortable win, having opened up a commanding lead in their third quarter.
The Indiana Pacers were thrashed by the Phoenix Suns, suffering their heaviest defeat of the season.
Gerald Green led the way against his former team with 23, ending a five-game winning streak for the team with the best record in the NBA.
The Toronto Raptors dominated the fourth quarter to come from behind against the Dallas Mavericks.
DeMar DeRozan scored a career-high 40 to help the Raptors bounce back from two defeats in a row, despite the Mavericks having a 19-point lead at the end of the first quarter.
The Charlotte Bobcats sealed their third win in their last four wins with victory over the Los Angeles Clippers.
Neither side ever opened up a big lead, but the hosts were able to restrict Blake Griffin to just one point in the fourth quarter, allowing Al Jefferson to lead the Bobcats to the win.
The Houston Rockets thrashed the Sacramento Kings to seal their third win in a row.
Dwight Howard and James Harden added 50 between them as the Rockets cruised to the victory.
A strong start helped the Philadelphia 76ers to inflict a fifth straight defeat on the New York Knicks.
Evan Turner had the highest points total of his career to set up the win for the visitors with 34, which was enough to hold off a good spell from Carmelo Anthony.
The Boston Celtics got the better of the Washington Wizards in overtime to win their first away game in 11 attempts.
Jeff Green kept the sides close with a season-high 39, before Gerald Wallace hit the game-winning points in overtime with just 2.5 seconds remaining.
The Milwaukee Bucks sealed just their eighth win of the season with a late run against the Detroit Pistons.
The Bucks snapped their nine-game losing streak after fighting back from a 13-point deficit in the third quarter thanks to a 30-point game from Caron Butler.
The Atlanta Hawks held on for a win over the Orlando Magic, despite a strong finish from the home side.
The Magic clawed their way back into the game, having been 19 points down in the fourth quarter, but a series of late throws allowed the Hawks to clinch the win.
Results in full: Los Angeles Clippers 91-95 Charlotte Bobcats, Chicago Bulls 98-87 Cleveland Cavaliers, Atlanta Hawks 112-109 Orlando Magic, Dallas Mavericks 85-93 Toronto Raptors, Boston Celtics 113-111 Washington Wizards, Philadelphia 76ers 110-106 New York Knicks, Sacramento Kings 98-119 Houston Rockets, Detroit Pistons 101-104 Milwaukee Bucks, Oklahoma City Thunder 111-105 San Antonio Spurs, Indiana Pacers 100-124 Phoenix Suns
Sian Cowper
