Bill Henke (2-3) was the tough-luck loser for Jacksonville State, allowing a pair of hits and the game-winning run in the tenth.
The Gamecocks entered the game needing a pair of wins against Tennessee Tech to claim the OVC title, but came up short. JSU reached the championship game with a 9-3 win over Murray State earlier in the day.
Tech took a 1-0 lead in the top of the first inning when Alex Henry led off the game with a solo home run, but JSU came right back with a trio of runs in the bottom of the inning.
Todd Cunningham walked, stole second and scored on a two-out, RBI single from Kyle Bluestein. After moving to second on a wild pitch, Bluestein scored on Daniel Adamson's RBI double. Sam Eberle followed with a RBI double to right-center, making it 3-1.
Tennessee Tech tied the game in the fifth inning when Casanova Donaldson led off with a single and Evan Webb followed with a two-run home run to tie the game at 3.
Ben Burgess pitched the final four innings and allowed just one hit and had four strikeouts to earn the win for Tech.
Kyle Bluestein had a pair of hits to lead the Gamecocks.
Cunningham, Bluestein, Eberle, Steven Leach and Austin Lucas each earned All-tournament honors for JSU, which ends the season with a 31-26 record. It marks the seventh straight 30-win season for the Gamecocks under Jim Case.
Against Murray State, Cunningham hit a pair of three-run home runs as the Gamecocks advanced to the OVC championship game for the fifth time in the past six years.
Eberle hit a solo home run in the second inning and Cunningham followed with a two-out, three-run homer to give the Gamecocks a 4-0 lead.
Murray State's Wes Cunningham hit a three-run home run in the top of the third inning off of Gamecocks starter Mitch Miller, but the Racers didn't score again.
JSU added five runs in the seventh, hightlighted by Cunningham's second three-run homer.
JSU's Tanner Freshour (3-3) scattered six hits and had a pair of strikeouts to earn the win, while MSU's Lucas Allen (0-5) gave up six hits and six runs to take the loss.