SUMMERVILLE -- With aggressive base running and timely hitting, the Summerville Green Wave softball team defeated Irmo, 16-1, on Thursday in the opening round of the Class AAAA playoffs.

Summerville (23-4) scored two runs off passed balls and three on hits to take a 5-0 lead in the bottom of the first inning. The team scored a run in each of the next two innings, but largely rode the arm of pitcher Malori Myers into the bottom of the fourth, when it scored 10 runs.

"We were able to scout them a little bit and we tried to use the information we had and put some pressure on them with the base running and all," Summerville coach Heather Tucker said. "We wanted to make sure we capitalized if they made mistakes and it ended up working out for us. This is a good win, but it isn't like we just crushed the ball. We need to keep a level head and focus on the next game."

Summerville will host the Sumter, a 5-1 winner over Berkeley, on Saturday at 2 p.m.

After Summerville loaded the bases in the bottom of the first off two errors and a walk, Ashley Muckelvanney scored on a passed ball.

Then Alexa Ritchie singled to plate two runs and Sarah Montei tripled to drive her in. The Green Wave's final run of the inning was scored when Montei dashed home after a passed ball.

Emma DeVaun had an RBI single in the second and another in the fourth. Other Wave batters with run-scoring singles in the fourth were Myers, Rochelle Lyda, Kasie Fowler, Kaitlyn Clark and Sarah Windham.

Myers threw four innings, surrendering only three hits and no runs while striking out five batters. Taylor Wuerfel pitched the bottom of the fifth and surrendered two hits and one run.

Irmo's only run came in the top of the fifth when Ashley Lord plated pitcher Amanda Evans with a single. Evans reached on an error.