The Dallas Mavericks are one game away from clinching the National Basketball Association championship after beating the visiting Miami Heat 112-103 Thursday.

The Mavericks won with a balanced scoring effort, shooting a sizzling 56.5 percent from the floor, including 13 out of 19 three-point attempts. Dirk Nowitzki finished with 29 points, while teammates Jason Terry scored 21 points and J.J. Barea had 17 points.

Dallas took the lead midway through the third quarter and maintained it late into the fourth. But a scoring run by Miami gave the team a 100-97 lead with more than three minutes remaining in regulation.

But for the third time in the series, the Mavericks staged another late-game rally, outscoring the Heat 17-4, including two three-point shots by Terry and a slam dunk by Nowitzki.

Dwayne Wade scored 23 points for Miami, despite playing with a sore hip after colliding with a Dallas player earlier in the game. LeBron James recovered from his subpar eight-point performance in game four, posting a triple-double with 17 points,10 rebounds and 10 assists, but scored just two points in the game's final minutes.

Dallas holds a 3-2 lead in the best-of-seven series, which moves back to Miami for game six on Sunday.