PORTLAND, Ore. — Damian Lillard hit a 3-pointer at the buzzer and the Trail Blazers stunned the Rockets 99-98 to take their playoff series in six games and advance to the Western Conference semifinals for the first time in 14 years.

Portland, making its first playoff appearance since 2011, hadn’t advanced to the second round since 2000.

Mavericks 113, Spurs 111

DALLAS — Monta Ellis scored 12 of his 29 points to lead a fourth-quarter comeback, Dirk Nowitzki added 22 and the Dallas Mavericks forced a seventh game in their first-round series with top-seeded San Antonio, beating the Spurs 113-111 on Friday night.

The eighth-seeded Mavericks bounced back from consecutive losses by handing the Spurs their first road defeat when leading after three quarters this season.

Nets, 97, Raptors 83

NEW YORK — Deron Williams scored 23 points, shaking off a second-half injury, and the Brooklyn Nets forced a seventh game in their first-round series by beating the Toronto Raptors.