Lillard was 3 for 3 from the floor in the extra period as the Blazers escaped after blowing a 17-point lead in regulation.
Rudy Gay forced overtime with a buzzer-beating layup and tied a season high with 30 points to go with 10 rebounds. DeMar DeRozan scored 29 points and Jonas Valanciunas added a season-high 19.
The Memphis Grizzlies defeated the Sacramento Kings 97-86 with Zach Randolph scoring nine of his 22 points in the fourth quarter and also had 10 rebounds.
The Grizzlies led by 20 points in the third quarter and survived a second-half rally by the Kings to win their second straight on their four-game road trip.
Marc Gasol had 19 points, nine assists and eight rebounds for the Grizzlies. Mike Conley also had 19 points and nine assists, and Tony Allen added 12 points.
Travis Outlaw scored a season-high 18 points for the Kings. Isaiah Thomas added 15 points and Marcus Thornton had 12. DeMarcus Cousins, whopse average was 22.8 points heading into the game, had nine points in 19 minutes.
The Los Angeles Lakers beat the Detroit Pistons 114-99.