The Houston Rockets fell to their fourth straight NBA loss as Jimmy Butler delivered for the Chicago Bulls.

For the first time since early 2013, the Rockets' losing streak hit four after being easily beaten 111-95 by the Boston Celtics.

Isaiah Thomas (23 points) and Avery Bradley (21) led the Celtics, who hold a 6-4 win-loss record.

James Harden was four-of-seven from three-point range as part of his 16 points for the Rockets, while Trevor Ariza had a team-high 19 points.

In Chicago, the Bulls held on for a 96-95 win over the Indiana Pacers thanks to Butler.

Butler put Paul George under enormous pressure for the final shot of the game, with the Pacers star unable to add to his 26 points.

Derrick Rose had a team-high 23 points and sprained his ankle for the 7-3 Bulls, while Butler finished with 17.

The San Antonio Spurs made it five straight wins, overcoming the Portland Trail Blazers 93-80.

The Philadelphia 76ers threatened before falling to their 11th consecutive loss to start the season, going down to the Dallas Mavericks 92-86.

Dirk Nowitzki (21 points) and Chandler Parsons (21) helped the Mavs improve to 7-4.

Recruit Mario Chalmers had 29 points in the Memphis Grizzlies' 122-114 win over the Oklahoma City Thunder.

Russell Westbrook finished with a double-double of 40 points and 14 assists.

Brandon Knight's triple-double of 30 points, 15 assists and 10 rebounds helped the Phoenix Suns past the Los Angeles Lakers 120-101.