Votto's homer was his seventh of the year. He also walked twice and scored two runs.

Billy Hamilton supplied a solo homer among two hits and scored twice. Tucker Barnhart went 3-for-3 with a walk while scoring twice and driving in a run. Jose Peraza scored three runs and Adam Duvall ripped three hits and drove in two runs.

Romano (4-7) was coming off an eight-inning gem against Kansas City in which he allowed one run on four hits in eight innings. He tossed seven scoreless innings on Tuesday and recorded six strikeouts while allowing four hits and four walks.

Detroit starter Matthew Boyd (4-5) lasted just four innings. He gave five runs on six hits while striking out five. Warwick Saupold surrendered three runs on four hits in 1 2/3 innings.

Tigers leadoff hitter Leonys Martin had three hits, walked twice and drove in two runs.

The Tigers had two baserunners with one out in the third, but that opportunity was wasted when Nicholas Castellanos rapped into a double play.

Votto's blast in the bottom of the inning allowed the Reds to take command. Control issues led to Boyd's demise as he walked No. 9 hitter Hamilton and Barnhart, sandwiching a Peraza single.

Votto then crushed his grand slam to right.

The Reds added to their lead in the fourth. Peraza walked with one out and Barnhart followed with a double to left.

The Tigers had two more baserunners in the fifth but remained scoreless when Jeimer Candelario was retired on a groundout.

Hamilton's homer over the right field wall sparked a three-run sixth. Barnhart smacked a one-out single, Votto walked and Suarez singled to load the bases. After Scooter Gennett flied out, Duvall doubled to bring in Barnhart and Votto.

Suarez was hit by a pitch with the bases loaded in the seventh, making it 9-0.

Detroit ended the shutout bid with five runs in the ninth, including Martin's two-run single.

--Field Level Media