Suppan, who signed a two-year, $6 million deal with St. Louis after splitting last season between Boston and Pittsburgh, is 6-0 with a 2.39 ERA in eight road starts this year. The 29-year-old right-hander got his sixth road win in a 10-4 victory at Cincinnati on July 18, giving up four runs and seven hits over six innings.
He went on to lose 7-2 at home to San Francisco on Friday, allowing a season high-tying six runs and nine hits over seven innings. The defeat was Suppan’s first since June 6, preventing him from joining teammates Matt Morris (11), Chris Carpenter (10) and Jason Marquis (11) as the fourth Cardinals pitcher with at least 10 wins this season.
Marquis hit a two-run double and pitched seven strong innings for his 11th win Tuesday as the Cardinals blanked the Reds 6-0. Reggie Sanders and Jim Edmonds each hit solo homers for St. Louis, which improved to 10-3 since the All-Star break.
The Cardinals are 10-2 against the Reds this season.
The Reds have lost seven in a row overall, matching their worst slump of the season. Cincinnati slipped below .500 for the first time since losing its season opener.
Sean Casey, who had one of the Reds’ three hits Tuesday, is batting .387 (12-for-31) with a homer, five doubles and seven RBIs in his last eight games.