Kelvin DeLeon hit a walkoff sacrifice fly in the bottom of the ninth inning that scored Peter O’Brien and gave the Charleston RiverDogs a 3-2 win over the first-place Savannah Sand Gnats in South Atlantic League baseball Tuesday night at Riley Park in front of 2,259 fans.

The RiverDogs (20-15) won their fifth straight game.

After a Cito Culver single and a Greg Bird double, O’Brien made the score 2-0 with a two-run single in the first inning.

Savannah (21-15) tied it on RBI singles by Cole Frenzel in the third and sixth innings.

The Sand Gnats threatened to take the lead in the top of the ninth inning. However, with the game tied and the bases loaded, Hunter Carnevale struck out Kevin Plawecki to end the inning.

In the bottom of the ninth, the RiverDogs loaded the bases with hits by O’Brien and Calderon and an intentional walk of Reymond Nunez. O’Brien then scored the game-winning run on DeLeon’s sac fly to center field.

Ben Paullus (2-1) picked up his second win of the season.

Coming up

The final game of this three-game series is at 7:05 today. Right-hander Cesar Vargas (1-1, 4.28 ERA) will be on the mound for Charleston, and he will face off against left-hander Steven Matz (2-0, 1.85 ERA) for Savannah.

All seniors (65+) who enter the game before 7 will get a free hot dog, Pepsi and bag of chips. Show your AAA Carolinas card at the box office for buy-one-get-one-free tickets.