St. Louis Cardinals vs Pittsburgh Pirates
Wednesday, September 23, 2026
Matchup Analysis
This MLB matchup features St. Louis Cardinals (76-81 (38-43)) traveling to take on Pittsburgh Pirates (80-77 (43-36)) at PNC Park, Pittsburgh, Pennsylvania. These two teams are closely matched, with both squads posting similar scoring differentials this season. This projects as a competitive contest that could go either way.
Scoring could be a challenge for Pirates (4.6 PPG) against a Cardinals defense allowing just 4.6 PPG. The home team will need to execute efficiently to overcome this stout defense. The Cardinals offense puts up 4.6 PPG and faces a Pirates defense allowing 4.6 PPG. The visitors have the offensive firepower to stay in this one. Interestingly, neither offense has a clear statistical advantage over the opposing defense. This scoring equilibrium points to a game decided by execution in the final minutes.
Playing at home is worth about 0.28 runs in MLB, giving Pirates a slight built-in edge before first pitch. Our model has this nearly dead even at 0.3 points. These razor-thin margins mean the game will likely come down to late-game execution down the stretch. The 68% confidence interval ranges from Pirates losing by 0 to losing by 0. This projects as a grind-it-out affair, with both teams averaging around 5 PPG in typical game environments. Low-scoring games compress margins and make covering large spreads harder.
This is one of those games where the oddsmakers have it dialed in. Our model sees no significant spread edge, but secondary markets like the total could still offer a narrow window of value.
Team Comparison
Current Odds
| Team | Moneyline | Spread | Total |
|---|---|---|---|
| STL St. Louis Cardinals | +100 | +1.5 | O 7.5 |
| PIT Pittsburgh Pirates | -121 | -1.5 | U 7.5 |
Model Projection
| Team | Moneyline | Spread | Total |
|---|---|---|---|
| STL St. Louis Cardinals | +116 | +0.3 | O 9.2 |
| PIT Pittsburgh Pirates | -116 | -0.3 | U 9.2 |
Our Picks
Key Matchup Factors
Key Matchup Factors:
- Cardinals has a +0.0 scoring margin edge
- Home court advantage adds 0.3 points for Pirates
- Expected scoring: Pirates ~5, Cardinals ~5 (total ~9)
- Run/puck line pass: model margin below blowout gate
Recent Trends
Pirates Trends:
- The over is 16-4 in Pittsburgh Pirates's games after a loss vs a winning team
- The over is 7-0 in Pittsburgh Pirates's games on a 3+ game losing streak
- The over is 28-12 in Pittsburgh Pirates's games at home as a favorite
- The over is 24-12 in Pittsburgh Pirates's games at home after a loss
- The over is 28-12 in Pittsburgh Pirates's games favorite
Cardinals Trends:
- St. Louis Cardinals is 5-1 ATS on a 3+ game losing streak
- St. Louis Cardinals is 11-4 ATS after a loss vs a winning team
- The over is 1-5 in St. Louis Cardinals's games on a 3+ game losing streak
- The over is 4-9 in St. Louis Cardinals's games after a loss vs a winning team
- St. Louis Cardinals is 10-5 straight up after a loss vs a winning team
Head-to-Head:
- Pittsburgh Pirates is 1-4 ATS at home vs St. Louis Cardinals
- Pittsburgh Pirates is 4-1 straight up on the road vs St. Louis Cardinals
- Pittsburgh Pirates is 1-4 straight up at home vs St. Louis Cardinals
Matchup Edges
Pirates
Advantages
- Home field advantage worth 0.3 runs in our model
- Riding a 5-game winning streak with strong momentum
- Home record of 71% win rate at this venue
- Elite pitching allowing just 4.6 RPG
Disadvantages
- Limited offense averaging just 4.6 RPG
- Playing on a back-to-back with only 1 day of rest
- Negative scoring margin of -0.0 RPG per game
Cardinals
Advantages
- Stout pitching allowing just 4.6 RPG
- Net scoring margin of +0.0 RPG per game
- Model-projected win probability of 46%
Disadvantages
- Playing on the road, sacrificing 0.3 run of home field advantage
- Struggling with a 76-81 (38-43) record (48% win rate)
- Anemic offense at just 4.6 RPG limits scoring ceiling
- On a back-to-back with only 1 day of rest for a road game