The Eastern Conference's first seed were faced with little resistance against a Sixers side without Joel Embiid protecting the paint, shooting 51.3 per cent from the floor and 48.3 per cent from beyond the arc.
Jimmy Butler was transformative on the offensive end for the Heat, finishing with 22 points on eight-of-15 shooting and 12 assists.
The Sixers kept turnovers relatively low with eight but did not generate great shots either, coming up with 17 assists for the night and connecting on a poor 26.7 per cent of three-point attempts.
The Phoenix Suns assuredly defended home court in their series with the Dallas Mavericks, securing a 129-109 victory.
A dominant second half saw the Suns through in Game 2, scoring 71 points on 29-of-41 shooting against the Mavs' 49 points on 14-of-39 from the floor.
Devin Booker and Chris Paul took over, combining for 41 points on 16-of-21 shooting after the main change. The change in game complexion was all the more distinct with Dallas taking 16 free-throw attempts in comparison to Phoenix's five.
Booker and Paul scored 30 and 28 points respectively for the night, with the latter chipping in eight assists and six rebounds.
Luka Doncic put up 35 points on 13-of-22 shooting along with seven assists, but crucially committed as many turnovers for the Mavs.