CLEVELAND (AP) — Still unbeaten, still undeniable.

The Cavaliers are rolling through the East with ease.

LeBron James hardly missed and scored 24 points in three quarters, Kyrie Irving scored 27 and Cleveland picked up where it left off before a long layoff by thumping the Toronto Raptors 115-84 in Game 1 of the Eastern Conference finals on Tuesday night.

James made his first nine shots — one an arena-rattling powerhouse dunk — and the Cavs, healthy and hungry after losing in the Finals a year ago, shot 67 percent from the field in the first half while improving to 9-0 this postseason. Cleveland is the first team to start the playoffs with nine straight wins since San Antonio reeled off 10 in a row in 2012.

“It’s our preparation,” James said in explaining the Cavs’ so-far-pristine postseason. “We understand the moment and guys are rising to that.”

The 31-point win is the most lopsided in Cleveland’s postseason history.

But unlike their second-round series when they made 77 3-pointers and swept Atlanta, the Cavs did most of their damage from close range. Cleveland made just 7 of 20 3-point attempts.

DeMar DeRozan scored 18 points and Bismack Biyombo added 12 for Toronto, which had just one day to prepare for the Cavs after going to seven games with Miami.

“I thought they were the fresher team, the quicker team,” Raptors coach Dwane Casey said.

Kyle Lowry, who scored 35 points in the Raptors’ series-clinching win over Miami, was held to just eight as he and the Raptors were roughed up in their first appearance in the conference finals.

Unless Toronto figures some things out quickly, these Raptors will be extinct, too.

Game 2 is Thursday night.

Cleveland figured to have some rust following a nine-day break since ousting the Hawks. But not only did the Cavs look refreshed, they looked better than before, taking their game to another level.

And James, as is almost always the case, led the charge. He finished 11 of 13 from the field and added six rebounds and four assists in just 28 minutes. James spent the final quarter on the bench cheering on Cleveland’s reserves.

These are the Cavs at full force, not the version missing Love and Irving in last year’s Finals.

“They waited a full regular season to get back to this moment,” James said of his teammates. “They trained their bodies all season long to get back to this point and those guys have been spectacular.”

The Cavs outscored the Raptors 33-16 in the second quarter when James personally welcomed Canada’s NBA franchise to the East’s final round with a devastating dunk.

Driving baseline past DeMarre Carroll, James cut across the lane and hammered home a right-handed windmill. He celebrated the slam by tilting his head, backpedaling and letting out a primal scream along with 20,000 fans.

The impressive bucket capped a 20-2 spurt for the Cavs, whose swarming defense was making life miserable for Lowry and his teammates. Toronto didn’t get its first field goal until 6:28 remained in the quarter. The Raptors regrouped for a moment and closed within 12 before the Cavs decided enough was enough and closed the half with a 12-4 flurry to go up 66-44.

The Raptors came in as overwhelming underdogs, but Casey wasn’t worried about the stage being too big or his team fearing the Cavs.

He’s still confident his group will bounce back.

“This score is embarrassing,” he said. “But it’s just one game.”

And that might be the scariest thing of all.

OFF THE LINE

DeRozan and Lowry did not attempt a free throw despite both playing more than 31 minutes. They combined to take 18 foul shots in Game 7 against Miami, and Lowry said he and DeRozan needed to be more aggressive.

“We didn’t try to do that until later in the game,” he said.

CHAIRMEN OF THE BOARDS

The Cavs dominated the Raptors inside, outrebounding them 45-23.

TIP-INS

Raptors: Didn’t have center Jonas Valanciunas because of a sprained right ankle. He’s doubtful for Game 2. … Casey nearly hired Cavs coach Tyronn Lue two years ago before he signed with the Cavaliers as David Blatt’s top assistant. “We talked, and he made a good decision,” Casey said. “He’s a good young coach, a good person.”

Cavaliers: Cleveland’s nine-game winning streak is the longest for any Cleveland team in postseason history. The Cavs also won nine straight in 2009. … Lue is flattered that Lowry calls him a “father figure.” The two became tight when Toronto’s guard entered the league. “When he first came in, he said that he wanted to be like Tyronn Lue,” Lue said with a chuckle. “He wanted to compare himself to me. I was like, ‘Well, you can be much better than me.’ He’s very well surpassed me as a player.”

UP NEXT

Game 2 is Thursday night in Cleveland at 8:30 p.m.