In the seventh inning, Reynaldo Rivera scored on a Trei Cruz sacrifice fly before Dingler tripled home Jack Kenley and Parker Meadows.
Later in the inning, Dingler scored on a balk while Packard singled home Daniel Cabrera.
Fort Wayne score two runs in the bottom of the seventh to make the score 6-3 which was ultimately the final.
Starting pitcher Chance Kirby picked up a no-decision, allowing one run on one hit and striking out five over five innings.
Angel Reyes picked up the win in relief, allowing two runs on two hits while striking out one over 2/3 of an inning.
Ruben Garcia pitched a clean ninth inning to pick up the save.
Offensively, Packard led the Whitecaps with three hits and two RBIs while Dingler had one hit, two runs and two RBIs.
The Whitecaps are now 1-2 overall and will continue their series at Fort Wayne on Friday with first pitch scheduled for 7:05 p.m.