The San Antonio Spurs slipped to a fourth consecutive defeat as they were crushed by the Portland Trail Blazers at the Moda Center. The NBA champions found themselves 16 points down at the end of the first quarter as Wesley Matthews led the rout for the hosts.
Tony Parker and Danny Green cut the gap to four for the Spurs before the break, but Matthews and LaMarcus Aldridge ensured that Portland stayed in control in the second half.
The Atlanta Hawks extended their lead at the top of the Eastern Conference with a comfortable win over the Dallas Mavericks.
The visitors were just ahead at half time, but Dennis Schroder led a 13-0 run for Atlanta at the start of the third quarter to give the hosts the lead. The Houston Rockets needed a fourth-quarter push to clinch a narrow win over the Los Angeles Clippers.
The hosts struggled to get going in the first three quarters, but a 15-1 run at the start of the fourth put the Rockets in front, with Corey Brewer scoring 13 of his 20 points in the final 12 minutes.
A strong finish from the Charlotte Hornets handed them a win over the Chicago Bulls, giving the visitors their first win in six outings. The Bulls were without Derrick Rose, who will undergo knee surgery, but Pau Gasol added a run of baskets in the first half, before the Hornets surged ahead after the break, led by Michael Kidd-Gilchrist.