In a battle between first-round picks, Tua Tagovailoa bested Justin Herbert as the beat the 29-21 on Sunday at Hard Rock Stadium.
The Dolphins are now 3-0 since installing Tagovailoa as their starting quarterback during their Week 7 bye. The Chargers, on the other hand, have lost seven of their last eight games.
With Miami already up two scores, Jason Sanders hit a 49-yard field goal with 4:06 remaining to increase the team's lead to 15 points, 29-14. That provided the Dolphins with plenty of cushion to see them through to their sixth win.
Herbert found Keenan Allen for a 13-yard touchdown pass at the 1:57 mark but couldn't eat into the deficit any further.