The home side found themselves 12 points up midway through the fourth quarter, but LeBron James and Chris Bosh led the fightback for Miami until a personal foul by Dwyane Wade allowed Joe Johnson to seal the win with a pair of free throws.
The Lakers had looked in control, but an injury to Xavier Henry late in the first half allowed the visiting team to come back from 15 points down.
Jeff Green and Gerald Wallace left the home side in a strong position as they closed in on their first win of the season, but Zara Pachulia added 10 points inside the last six minutes to lead a Milwaukee comeback.
The hosts amassed a 30-point lead during the third quarter, but Anthony Davis was able to reduce the gap to 20 points by the end of the game.
Thaddeus Young added a series a late shots, finishing the game with 29 points, two assists, eight rebounds and a steal.
The home side got off to a quick start, taking a 16-point lead by the end of the first quarter, allowing them to survive a Jae Crowder-led fightback late in the fourth quarter.
The Timberwolves held Kevin Durant to 13 points while opening up a 34-point advantage midway through the fourth quarter before coasting to the end of the game.
A strong start helped the Charlotte Bobcats set up a 90-84 win over the Cleveland Cavaliers.
Kemba Walker added nine points in the first quarter, and continued scoring throughout the clash to end the game with 23 points.
The Hawks turned a one-point deficit heading into the final two minutes of the second quarter into a 10-point lead at the break, with Al Horford finishing the day with 22 points.
Neither side ever looked like running away with the contest, but an 18-point performance from Eric Bledsoe ensured the result for the home side.
Results in full: Cleveland Cavaliers 84-90 Charlotte Bobcats, New Orleans Pelicans 90-110 Orlando Magic, Philadelphia 76ers 109-102 Washington Wizards, Toronto Raptors 95-102 Atlanta Hawks, Milwaukee Bucks 105-98 Boston Celtics, Dallas Mavericks 105-113 Houston Rockets, Detroit Pistons 108-111 Memphis Grizzlies, Oklahoma City Thunder 81-100 Minnesota Timberwolves, Miami Heat 100-101 Brooklyn Nets, Portland Trail Blazers 113-98 Denver Nuggets, Utah Jazz 84-87 Phoenix Suns, Los Angeles Clippers 110-101 Sacramento Kings, San Antonio Spurs 91-85 Los Angeles Lakers