MONTERREY, Mexico — Derek Dietrich hit a tiebreaking homer off Adam Wainwright in the seventh inning and added a two-run triple as the Cincinnati Reds won their fourth straight game, beating the St. Louis Cardinals 5-2 Saturday night in the raucous Estadio de Beisbol de Monterrey.
The start of the two-game series marked the first time either team had played in the regular season in Mexico.
St. Louis had won five in a row.
Wainwright hit an RBI single in the second off Tanner Roark for a 1-0 lead. Jesse Winker's one-out homer in the sixth was the Reds' first hit off Wainwright (1-1).
Dietrich connected to lead off the seventh, finishing Wainwright. Dietrich tripled to cap a three-run eighth that made it 5-1.
Kolten Wong hit a leadoff home run against Zach Duke to begin the Cardinals ninth. Raisel Iglesias relieved and, after St. Louis put two runners on base, retired Paul Goldschmidt and Paul DeJong for his second save.
Jared Hughes (1-0) got two outs for the win.
Mexico is hosting major league games for the second year in a row. Last year, the Los Angeles Dodgers combined for a no-hitter against San Diego at Monterrey. Next month, the Los Angeles Angels and Houston Astros will play two games in this ballpark.