Joshua Earney carried the Post 18 freshmen to a 3-0 victory June 11 against Wentzville, striking out 12 batters and allowing just two hits.
Sullivan struck the first blow against Washington Tuesday in a battle of two unbeaten teams in the Ninth District standings, but it was Post 218 emerging with the win.
The Post 18 freshmen surged to another win Tuesday, beating St. Peters Post 313 12-2 in just five innings.
LeighAnn Allen and Trevor Key wrapped up their seasons Friday at the Class 4 state meet in Jefferson City.
Joshua Earney struck out 11 batters Wednesday as the Post 18 freshmen won their third straight game 3-1 over Hermann.