PARIS, Texas—Chris Culberson’s two-run home run broke a 2-2 tie in the sixth inning, and Cody Mayo pitched New Boston to a 5-2 victory over Quitman Saturday at Paris Junior College’s Hub Hollis Field.

The Lions’ sweep of the best-of-three Class 2A area playoff round baseball series puts them in next week’s Region III quarterfinals against New Diana, which swept its series from DeKalb.

Quitman tied the game with an unearned run in the top of the sixth inning, but Caleb Hensley led off the Lions’ sixth with a single to right and Culberson followed with his second home ru...