Published: Sep 01, 2012 1:10 AM EDT
Updated: Sep 01, 2012 6:31 AM EDT

OAKLAND, Calif. (AP) - Brandon Moss had career highs of four hits, four RBIs and four runs, Josh Reddick hit his first career grand slam, and the Oakland Athletics routed the Boston Red Sox 20-2 on Friday night to match their best winning streak of the season at seven.

Josh Donaldson homered for the third straight game with a two-run shot and Moss also had a two-run drive to go with a pair of RBI doubles to help back Brandon McCarthy (8-5) with a season high in runs. Reddick connected for his 28th homer in the seventh off Mark Melancon as the A's scored their most runs since a 23-2 win against Texas on Sept. 30, 2000. They handed the Red Sox their most lopsided loss since a 22-1 defeat to the Yankees on Jun 19, 2000.