Jace Hogan added 12 points on 5-of-6 shooting and KJ Fitzgerald scored 11 for the Dolphins (6-5), who won their third straight and sixth of the last seven.
Jacksonville scored the first 10 points of the game and had a 19-4 run toward the end of the first half to go into the break with a 59-22 lead. The Dolphins did not do much to extend the lead in the second half, but the Knights got the deficit no closer than 33.
Darrell White had 13 points, and Antony Edwards and Tyrone Young added 10 points each for Middle Georgia State.
Jacksonville made 40 of 70 (57.1 percent) shots.
Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.