SALISBURY, Md. -- Luke Murton delivered a two-run home run in the fifth inning, and Charleston's bullpen held off a late Delmarva charge in beating the Shorebirds, 4-3, in South Atlantic League baseball action at Arthur W. Perdue Stadium on Monday.

The RiverDogs took three of four in the series, improving to 15-17, while the Shorebirds fell to 16-15.

Charleston led 4-3 heading into the bottom of the ninth, when closer Ronny Marte walked the leadoff batter Garabez Rosa. After a sacrifice bunt by T.J. Baxter moved Rosa to second, Ty Kelly lined out to right fielder DeAngelo Mack, who successfully doubled off Rosa at second base to conclude the series and give Marte his second save of the year.

Graham Stoneburner started for the RiverDogs, but lasted only one scoreless inning. Sean Black (2-3) was summoned for his first career relief outing and pitched four innings, allowing two runs -- both unearned -- on two hits to pick up the victory.

Murton slammed a two-run home run to left field -- his fifth of the season -- with two outs in the fifth inning for a 4-0 score.

Charleston kicks off a four-game homestand against the Augusta GreenJackets, a San Francisco Giants affiliate, on Wednesday at Riley Park.