A few hours before Game 1, Trail Blazers coach Terry Stotts was surrounded by a horde of reporters at the team’s morning shootaround, spouting off a few clichés and cracking a sly joke here and there without revealing a care in the world.

Just before the brief question-and-answer session was about to wrap up, someone asked Stotts to describe the vibe of his underdog team heading into the opening game of its best-of-seven Western Conference playoff series against the Houston Rockets.

“Locked in,” he said. “They’re looking forward to the series. Confident. Confident and hungry.”

And now they feature this: Homecourt advantage over the Rockets.

In an entertaining and drama-filled back-and-forth slugfest, the Blazers snatched homecourt advantage from the Rockets with a 122-120 overtime victory before 18,240 Sunday night at the Toyota Center.

The Rockets entered the series as a favorite, hailed by virtually every national pundit as a lock to breeze past the Blazers thanks to their playoff-tested All-Star duo, Dwight Howard and James Harden. But on Sunday night, it was the Blazers’ All-Stars, LaMarcus Aldridge and Damian Lillard, who put on a show.

As Howard battled foul trouble and ineffectiveness and Harden endured a hideous shooting night, the Blazers’ stalwarts sparkled. Aldridge did it all, finishing with 46 points, 18 rebounds, two blocks and two assists, and Lillard was nearly as good, recording 31 points, nine rebounds and five assists in his first playoff game.

Before tipoff, Aldridge was hounded by questions about his shaky playoff past. Lillard endured doubts about his lack of postseason experience and up-and-down performances against the Rockets’ defensive juggernaut, Patrick Beverley. But both dismissed the critiques in emphatic and jaw-dropping fashion, lifting the Blazers to their first-ever playoff victory in Houston.

Aldridge scored inside and out, pounding the overmatched Terrence Jones — and anyone else the Rockets threw at him — into the post for easy post-ups while also draining several of his trademark turnaround fadeaways and midrange jumpers. He made 17 of 31 shots, including two surprising three-pointers — after making just three all season — and the second was a critical make near the end of the shot clock in overtime. By the time it was over, it was a record-setting performance featuring a list of superlatives long and impressive.

His 46 points were a career and playoff franchise high, surpassing the 45 Bonzi Wells recorded in 2003. He became the first player in franchise history to record at least 30 points and 15 rebounds in a playoff game, according to the Elias Sports Bureau. And he became the first player in the NBA to register at least 46 points, 18 rebounds and two blocks in the postseason since Hakeem Olajuwon in 1987.

That’s right, playing in Houston, Aldridge etched his place alongside The Dream.