The Gamecocks fell 3-2 in the title game to Arkansas, which had fallen the previous day to JSU by a run.
After a two-run home run from junior Kalee Tabor put the Gamecocks (11-9) in front in the first inning, the host Razorbacks (16-6) were forced to battle back.
Arkansas used the long ball to generate all of its offense, using three leadoff home runs to account for its three runs. Nicole Schroeder cut the Gamecocks' lead in half with her blast in the second, while Chloe Oprzedek's swing to start the fourth tied the game. Wallace put UA in front for the first time against JSU all weekend with her blast to left in the seventh.
The Gamecocks mustered three of their four hits before the second out was recorded in the second inning, and the Razorbacks' pitchers settled in from that point.
Junior Tiffany Harbin suffered the loss despite limiting the Razorbacks to just four hits in six-plus innings in the circle. She struck out six and walked five but surrendered all three runs. Senior Hilary Phillips got the final three outs and allowed one hit in the process.
The Gamecocks return to action Wednesday, when they travel to Atlanta to face Georgia State.