Rob Lyerly's 10th-inning bloop single to right field scored Slade Heathcott with the winning run as the RiverDogs wrapped up the season with a rousing 2-1 victory over the Greensboro Grasshoppers in front of 4,618 fans on Monday night at Riley Park.
The attendance brought the season total to 269,023, the third-highest total of Charleston baseball history.
Charleston ended on a three-game win streak, finishing the second half at 34-36, 65-74 overall. Greensboro concluded at 34-36, 66-74 overall.
Charleston and Greensboro combined for just nine hits and no runs through nine scoreless innings.
Charleston's Shane Greene and Greensboro's Edgar Olmos matched zeroes for much of the game.
Greene went six scoreless, giving up just two infield singles while ringing up a career-high eight strikeouts. Olmos threw seven innings of scoreless ball, giving up just four hits and also struck out eight.
The scoreboard finally lit up in extra innings. Rand Smith's suicide squeeze bunt scored Taylor Krick in the top of the 10th to give Greensboro a 1-0 lead. Krick singled and moved to third on Carlos Paulino's double.
After Greensboro reliever Ramon Benjamin (3-3) struck out Ramon Flores and Kelvin Castro to open the frame, the southpaw walked RiverDogs catcher Hector Rabago, who was replaced by pinch-runner Jose Toussen. On the very next pitch, Heathcott roped an RBI double off the glove of leaping left fielder Christian Yelich, driving in Toussen with the tying run. Benjamin then walked Emerson Landoni to face Lyerly.
Lyerly, who was named to the SAL postseason All-Star team earlier this week, looped Benjamin's first offering to right. Heathcott slid home feet first to cap the season in style.
It was the second straight year and third time in four years that Charelston ended the season with a walkoff win.
Kelvin Perez (5-5) gets credit for the victory after giving up just three hits and one earned run, with four strikeouts, in a total of four innings of relief.
Lyerly paced Charleston with a 3-for-5 performance to bring his hit total to 157 for the season, second-best in the SAL.