Kevin Durant scored 33 points to lead Oklahoma City to a 100-85 victory over the Los Angeles Lakers as the Thunder matched Miami for the best record in the NBA.
Russell Westbrook added 19 points, James Harden had 16 and Serge Ibaka chipped in 11 points with 13 rebounds for the Thunder, who improved to 27-7 going into this weekend's All-Star break.
Durant, selected as a Western Conference starter for the All-Star exhibition in Orlando, Florida, on Monday, also had six rebounds, four assists and three steals.
Meanwhile, Chris Bosh scored 25 points, Dwyane Wade scored 22 and LeBron James added 20 for the Heat, who won their eighth straight game in beating the New York Knicks 102-88 in Florida.
In Atlanta, Josh Smith scored 22 points and pulled down 12 rebounds to help the Hawks snap a three-game skid with an 83-78 win over Orlando, while San Antonio beat Denver 114-99 to wrap up a nine-game road swing.
The Spurs have won 12 of their past 13 heading into the All-Star break and lead the Southwest Division by three games over defending champion Dallas.