Troutman entered the game with 976 career points and now needs only five more to reach 1,000.
The Phoenix led 39-29 at halftime, but Simpson's 3-pointer put the Spartans ahead 56-55 with 7:03 left and Nicholas Paulos made it 59-56 with 6:08 remaining.
Isenbarger's 3-pointer put Elon up 68-66 with 1:31 on the clock, and Troutman's and Beaumont's free throws clinched it.
With the Suns drafting Tyler Ulis, they now have five guards on their roster who attended Kentucky.
NBA fans will be looking forward to their newest players making plays like this next season.
Tim Legler and Brad Daugherty analyze Ben Simmons and Brandon Ingram, the top two picks in the NBA draft, and agree that Simmons will have a more immediate impact.