DALLAS, TX -- Dirk Nowitzki scored 20 points, Devin Harris keyed a game-breaking run, and the Dallas Mavericks beat Seattle 111-96 Saturday night to hand the reeling SuperSonics their 10th straight loss.
Seattle, which last won Dec. 29 against Minnesota, trailed 39-34 with 7:09 left in the first half before the Mavericks used a 27-10 run to build a 22-point halftime lead.
Harris scored nine in the spurt and finished with 17 points.
Josh Howard added 17 points, Jason Terry scored 15 and Jerry Stackhouse chipped in with 10 for Dallas, which has won eight of nine.
Seattle's 10 losses in a row matches the single-season franchise record. The Sonics (9-31) last dropped 10 in a row Dec. 12-29, 1968.
The longest losing streak in Seattle history is 13 games. The Sonics lost five in a row to end the 2006-2007 season, then dropped eight more to start this season.
Wally Szczerbiak scored 26 points and Nick Collison had 16 points and 12 rebounds for Seattle.
Rookie of the Year favorite Kevin Durant scored just six points to tie a season low. Durant, who was playing his first pro game in the Lone Star State after starring last season at the University of Texas, shot 3-of-12.
The Mavericks hit 15 of 24 shots in the first quarter as they jumped out to a 33-24 lead. Seattle whittled the lead to five before Dallas seized control of the game. Harris drove for consecutive layups to put Dallas on top 54-38 with 3:24 remaining in the second quarter.
Seattle's struggles were epitomized in the final sequence of the first half.
With 2.7 seconds remaining, Brandon Bass hit a free throw but missed his second attempt. Bass picked up the rebound and hit a 15-foot jumper that gave the Mavericks a 66-44 advantage.
The Mavericks mostly kept the lead over 20 points after halftime, though Seattle crept within 12 in the final two minutes after Dallas had cleared the bench.
In addition to the long skid, the Sonics have also lost nine straight road games and 12 in a row to the Mavericks. Seattle last beat Dallas on Dec. 9, 2004.