New point-earning rules dictated that to earn the title of grand champion the winner needed a slam consisting of a redfish and bonefish combination.
Fishing with Captain Chuck Schaftstall of Islamorada, Parrish scored two slams for 500 points and took the champion title with 400 points earned in other categories.
The winning duo also caught and released the three-day events largest bonefish at 26.7 inches.
Runner-up grand champion honors went to veteran tournament angler Jim Bokor Jr., also of Buffalo, with Islamorada's Captain Jared Raskob at the helm. The team landed two slams and earned 375 points in other categories.
Islamorada angler Rob Preihs and Captain Brian Gwilliam took trophies for the largest redfish, a 28.3-incher, and the most released redfish with 20.
A field of nine boats with anglers from as far away as Texas and Wisconsin released six bonefish and 93 redfish during the event.
Although the redfish category was added to the long-running all-release bonefish tournament in 2013, it continues to celebrate the flats-fishing prowess of Jim Bokor Sr., and the passionate support among bonefishermen of Keys angling.