ASU's leading hitter, Daniel Kassouf, launched a ball to center field with two runners on to give Appalachian State a 5-4 lead in the seventh. Three batters later, Trey Holmes turned on a ball to right field for a two-run homer that put the game out of reach.
The win kept Appalachian State (23-5, 8-2) in first place in the Southern Conference, while College of Charleston moved to 21-10 and 11-5 on the season.
Ryan Arrowood (5-0) picked up the win for Mountaineers, pitching seven innings and allowing four runs while striking out seven. Josh Renfro (4-3) was tagged with the loss as he allowed six earned runs and 11 hits.
Kassouf's three-run homer led ASU's offensive effort, while Will Callaway went 3-for-4 with two RBIs. Hector Crespo tallied two hits and scored two runs. Appalachian State outhit the Cougars 11-7.
College of Charleston got on the board first in the second inning as Murray led off with a walk and advanced to second on a groundout from Rob Harding. An two-out error from ASU's Trey Holmes allowed Murray to advance to third and the left fielder scored on a double steal. Just two pitches later, Heidt doubled to center field to score Cody Martin and give CofC a 2-0 lead.
The Cougars took advantage of another miscue by Holmes in the third inning as Tyler Jackson reached on a ball through the wickets and advanced to third on a double by Gantt. Jackson scored on a single from Murray, and Gantt scored on a sacrifice bunt from Harding, pushing the lead to 4-0.
Appalachian State was able to get one run back in the bottom of the third as Crespo singled, advanced to second on a hit-by-pitch from Tyler Zupcic and rushed to third on a wild pitch. Crespo scored on a groundout from Callaway to pull the margin to 4-1.
The Mountaineers scored another run in the fifth inning as singles from Crespo and Callaway put runners on the corners with two out. Kassouf hit a chopper down the third base line that forced a high throw from Harding and the tag was ruled late, allowing Crespo to score from third, unearned.
ASU took its first lead of the game in the seventh inning with a three-run home run by Kassouf, followed by a two-run homer to right from Holmes, giving ASU a 7-4 advantage.
College of Charleston got one run back in the top of the eighth inning with Goodson doubling and Jackson picking up a single. However, Gantt grounded into a double play that scored Goodson but cleared the bases. Appalachian State got the run right back in the next half inning on a sacrifice fly from Callaway.
Dre Watts picked up a pinch-hit RBI in the ninth inning, but it was not enough as Appalachian State induced a groundout for the third out and an 8-6 win.
The SoCon foes will be back at it tomorrow for a 3 p.m. start. Matt Pegler is scheduled to pitch for the Cougars, while ASU will throw Seth Grant.