ANTHONY GRABAU was one of two Pioneers with hits against Lexington in the Middlesex Babe Ruth League semifinals. (Courtesy Photo)
By STEPHEN MARTELLUCCI
LEXINGTON — In the Middlesex Senior Babe Ruth (ages 14-18) semifinals on Aug. 9, fourth-seeded Lynnfield was shut out by host Lexington 1 (Lexington had two teams in the league) by…