Harrodsburg won its eighth consecutive game Tuesday, topping Sayre 7-5 at Anderson-Dean Park.
Josh Anderson picked up the win, giving up seven hits, striking out five and walking four in a complete game effort.
"Josh Anderson continues to pitch well on the mound for us," Pioneers coach Brent Drury said.
Freeman Edwards had two of Harrodsburg's five hits, including a double. Adam Gray, Tim Lester and Richard Riley each singled.
Harrodsburg closes out its regular season by hosting Frankfort Thursday.
Mercer County 4, Anderson County 3 - At Harrodsburg, John Wickliffe knocked in three runs and picked up the save for the Scotties, who avenged an earlier loss to Anderson.
Wickliffe hit a two-run home run in the fifth and also singled in a run in the third.
He and Evan Ethington had two hits apiece, while Kameron McRay had the Scotties' other hit.
Mercer (17-14) opened the scoring with two runs in the bottom of the third on RBI singles by Ethington and Wickliffe.