The loss completed a season sweep at the hands of the Spartans, who lead the Atlantic Sun conference at 30-13 this season and have won eight of their last nine.

The Panthers fell to 19-26 on the season.

Four different Spartans had a multi-hit evening, led by Gaither Bumgardner's 5-for-5 effort with six RBIs.

Panther starter Connor Stanley tossed just two innings, but left with the Panthers ahead early after allowing just one score.

Trailing 1-0 in the bottom of the first, GSU came back to score twice with the help of a pair of Spartan errors.

Williams belted a two-out single, stole second and advanced to third on a throwing error. He then scored on a wild pitch to tie the game, 1-1. After Kody Adams reached on a fielding error, Kolowich drilled a double to left that brought in the runner for a 2-1 Panther lead.

Kolowich's double was his team-leading 12^th of the year as he's one shy of doubling his previous career total this season.

Stanley pitched out of a bases-loaded jam in the second, but the Spartans batted around in the third inning, scoring five times on four hits for a 6-2 lead.

Upstate starter Ben Augenstein (3-1) kept the Panther bats at bay, striking out five over 6.1 innings and allowing just one more score.

That tally came in the seventh after the Spartans had tacked on seven more runs for a 13-2 lead. Drew Shields knocked his team-leading 51^st hit of the season through the right side to score Caden Bailey, but the Panther offense would not draw any closer on the night in the 15-3 defeat.

Shields extended his team-high hitting streak to nine games in the loss.

The Panthers now turn their attention to the Colonial Athletic Association race and a three-game series at VCU (25-20, 11-13), starting Friday. GSU stands in a three-way tie for fifth place with a 10-11 league record and is just one game back of fourth.

Friday's game one in Richmond, Va., is slated for 6 p.m.