Though the Mets lost the most recent game Harvey started, he is 5-0 on the season. He is the 29th pitcher to have eight no-decisions over his last nine starts, and his 2.66 ERA is the best in such a stretch.
Wainwright, who is 9-3 with a 2.34 ERA, hasn't beaten the Mets since April 2010 and has four straight losses against them, including a 5-2 defeat last month in which he surrendered three earned runs on six hits and one walk.
In the middle of a 10-game stretch against the Mets, Marlins and Cubs, all teams with sub-.500 records, the Cardinals will be looking to put some distance between themselves and the division-rival Reds and Pirates. St. Louis is an NL-best 23-11 on the road.
"I think it just comes out in a wash at the end," Cardinals manager Mike Matheny said. "I think any discrepancies have probably played themselves out. We don't think too much about that stuff."
Mets: Seventh rainout looming
If Thursday's game is rained out, it will further complicate the Mets' already tortuous schedule.
With six rainouts already in the books, the Mets will likely have to find an opportunity to make up the series finale with the Cardinals and would once again have to shuffle their rotation.
"I don't think anybody in baseball has gone through what we've gone through this year," Collins said.
The two teams don't play again this season and share just one common off-day. More problematic is that the postponed games are being rescheduled for later in the season, when the game days are hotter, and sacrificing valuable off-days.
Cardinals: Hit streaks come to an end
Both Matt Carpenter and David Freese saw their career-high hit streaks come to an end this week.
At 20 games, Freese had the longest streak in the Majors this season. After slumping in the first month and a half of the season, he hit a grand slam on May 17 and had a hit in every game he played until Wednesday, steadily raising his average from .211 to .287 over the span. He went 0-for-4 against the Mets on Wednesday.
Carpenter, two games behind Freese at 18 games, went hitless Tuesday to end his streak.
• Cardinals starter Jake Westbrook will come off the disabled list to start on Friday, taking Tyler Lyons' place in the rotation. Matheny said that the Cardinals have not decided on a roster move to make room for Westbrook on the roster.
• Allen Craig admitted to soreness after hitting his head on the right-field wall at Citi Field on Tuesday but was back in the lineup Wednesday and knocked a solo blast to left field in the sixth inning.
• Collins said that the struggles of catcher John Buck are a result of him trying to do too much at the plate. Buck is 18-for-103 since May 3, and nine of his 11 home runs came in April.
"I think John's just trying to step up and pick up that big load, because he did early," Collins said. "No one guy can do it by himself."