Los Angeles Lakers players celebrate after winning the 2020 NBA championship on Sunday in Lake Buena Vista, Florida. Photo: VCG

The Los Angeles Lakers, fueled by superstar LeBron James' triple-double, dominated the Miami Heat 106-93 on Sunday to win a record-equalling 17th NBA championship but their first in a decade.

James added another chapter to an epic career, delivering 28 points, 14 rebounds and 10 assists as he captured his fourth NBA title with a third different team as well as earning NBA Finals Most Valuable Player honors for a fourth time.

"It means a lot to represent this franchise," James said, recalling that he told team owner Jeanie Buss when he arrived in Los Angeles in 2018, "I wanted to put this franchise back where it belongs."

Anthony Davis, playing in his first title series after years of frustration in New Orleans, added 19 points and 15 rebounds as the Lakers completed a four-games-to-two triumph in the best-of-seven championship series more than eight months after the death in a helicopter crash of team legend Kobe Bryant - who led the Lakers to their last title in 2010.

The series in the NBA's quarantine bubble in Orlando, Florida, capped not only an emotional season for the Lakers with the loss of talisman ­Bryant but a season of uncertainty and upheaval for the NBA as players grappled with the coronavirus ­pandemic and the demands for social and racial justice sweeping across the US.

The Lakers outhustled, outmuscled and outplayed Miami, making sure it wouldn't come down to any last-gasp effort as it did when they were denied in Game 5 on Friday.

Los Angeles had blown it open by halftime, their 36 second-quarter points equalling the Heat's entire first-half total as the Lakers took a 64-36 lead into the break.

Four Lakers players had scored in double figures by halftime.

Rajon Rondo was a perfect six-for-six from the floor in the first half as the Lakers built the second-largest halftime lead in NBA Finals history.

Rondo, who won a title with the Celtics in 2008, scored 19 points off the bench. Kentavious Caldwell-Pope added 17, Danny Green scored 11 and the Lakers pulled level with the ­Boston Celtics for most titles all time.

The Heat, who had stunned the Lakers on Friday on the back of Jimmy Butler's gritty triple-double, couldn't produce another miracle in the face of Los Angeles' stifling defense.

Bam Adebayo led the Heat with 25 points and 10 rebounds and Butler and Jae Crowder added 12 apiece, but Miami simply had no answer for the knockout blow Los Angeles delivered in the first half.

James played his 260th playoff game - surpassing Derek Fisher for the most all time.

He had signalled the Lakers' determination with nine first-quarter points.

James said one of the great satisfactions of the victory was helping Davis gain a title.

"I know what it feels like to have seven years where you feel like you can't get over the hump," said James, who had his arms around Davis on the sideline as the final seconds ticked off the clock.

"To be able to get him and we push him and let him know how great he is ... that's what it's all about."