Smith went 2-for-4 with a walk and a grand slam in Wednesday's 7-0 win over the Reds.
He blew the game open in the third inning by taking Jeff Hoffman deep with the bases juiced. Smith has found his groove in July, batting .305 (18-for-59) with five of his 11 homers on the year along with 14 RBI and 14 runs through 17 games.