D.J. Wabick provided all of the Savannah offense in the first game of Sunday's doubleheader but it wasn't enough as Charleston defeated the Gnats, 2-1.
Jeremy Mizell (3-9) suffered his ninth loss despite pitching very well as he came within one out of pitching his first career complete game.
Mike Dunn (11-3) earned his 11th win of the season for the RiverDogs, which has him tied for the league lead. Jonathan Hovis pitched the seventh for his 20th save.
Mizell threw 6.2 innings, allowing just 2 runs on 5 hits with 5 strikeouts and a pair of walks.
The 6.2 innings pitched is a career-high for Mizell and the third time in as many starts he has thrown at least five innings.
Charleston broke open a close ball game with fifth and sixth inning rallies to defeat the Gnats, 6-1, in Game 2 of Sunday's doubleheader.
Luke Trubee (3-0) earned the win while Gnats started Josh Stinson (3-9) took the loss. Charleston swept the doubleheader, and the Gnats have now lost eight consecutive games.
With the scored tied 1-1 in the fifth inning, Charleston rallied for three runs off four hits to take a 4-1 lead. The RiverDogs then added two more in sixth.
Charleston starter Ivan Nova gave up only one run off two hits but lasted just 3.1 innings. He left with the bases loaded and one out in the fourth inning. However, the Gnats couldn't take advantage as reliever Trubee got Leivi Ventura to ground into an inning-ending double play. Trubee and Jesse Hoover combined for 3.2 scoreless innings out of the Charleston bullpen.
Joe Holden hit his third home run of the season to give Savannah a 1-0 lead after one inning. Charleston's Chase Odenreider hit a solo home run in the third inning to tied it at 1-1.