St. Louis kept Scooter Gennett in check a day after his four-homer game , but Patrick Kivlehan
had a pinch-hit three-run shot that sparked the Cincinnati Reds to a 6-4 victory Wednesday night, extending the Cardinals' longest losing streak in four years.
The Cardinals have dropped six in a row, their deepest slump since they lost seven straight in July 2013.
They let a 4-1 lead slip away when Kivlehan - another utility player like Gennett - and Joey Votto homered during a five-run seventh inning.
Kivlehan's first career pinch-hit homer off Brett Cecil (0-2) tied it 4-4. Votto's two-run homer off Trevor Rosenthal finished the eight-batter rally that put the Reds in position for their 13th comeback win of the season.
Scott Schebler had a homer among his three hits for the Reds, who have won all three games in a series that ends on Thursday. They have won 10 of their last 15 games overall against the NL Central rival.
Wandy Peralta (3-1) got the win in relief of Bronson Arroyo. Raisel Iglesias pitched the ninth, staying perfect in 11 save chances.