← All picks for September 23, 2026
St. Louis Cardinals vs Pittsburgh Pirates
September 23, 2026 — MLB Prediction & Betting Pick
Our model leans St. Louis Cardinals
On balance, more tracked inputs leaned Pittsburgh Pirates (17 edges vs 6 for St. Louis Cardinals).
Note: the model leans St. Louis Cardinals even though the simple edge count favors Pittsburgh Pirates. This can happen because the model weighs each input differently — a single large advantage (like a dominant pitching matchup or a significant offensive gap) can outweigh several smaller edges on the other side. The edge count treats every metric equally, but the model does not.
Matchup Breakdown
Recent form (last ~10 games) — leans Pittsburgh Pirates
Looking at recent performance trends over the last ten games — including win rate, run differential, and offensive momentum — the matchup favors the Pittsburgh Pirates.
- Pittsburgh Pirates 0.700 vs St. Louis Cardinals 0.400 — leans Pittsburgh Pirates
- Pittsburgh Pirates 0.30 vs St. Louis Cardinals -0.55 — leans Pittsburgh Pirates
- Pittsburgh Pirates 4.30 vs St. Louis Cardinals 4.90 — leans St. Louis Cardinals
- Pittsburgh Pirates 4 vs St. Louis Cardinals 5.45 — leans Pittsburgh Pirates
- Pittsburgh Pirates 1 vs St. Louis Cardinals 0.333 — leans Pittsburgh Pirates
- Pittsburgh Pirates 0.930 vs St. Louis Cardinals 0.680 — leans Pittsburgh Pirates
Season to date — leans Pittsburgh Pirates
Season-long stats including runs scored and allowed per game, home/road splits, and weighted offensive production (wRC+) the matchup favors the Pittsburgh Pirates.
- Pittsburgh Pirates 4.69 vs St. Louis Cardinals 4.37 — leans Pittsburgh Pirates
- Pittsburgh Pirates 4.49 vs St. Louis Cardinals 4.53 — roughly even
- Pittsburgh Pirates 0.692 vs St. Louis Cardinals 0.400 — leans Pittsburgh Pirates
- Pittsburgh Pirates 101.3 vs St. Louis Cardinals 101.5 — roughly even
Starting pitching (recent starts) — leans Pittsburgh Pirates
Evaluating the probable starters based on recent ERA, WHIP, strikeout rate, and pitching form trends, the matchup favors the Pittsburgh Pirates.
- Pittsburgh Pirates 4.35 vs St. Louis Cardinals 5.76 — leans Pittsburgh Pirates
- Pittsburgh Pirates 0.87 vs St. Louis Cardinals 1.64 — leans Pittsburgh Pirates
- Pittsburgh Pirates 11.32 vs St. Louis Cardinals 6.84 — leans Pittsburgh Pirates
- Pittsburgh Pirates 1.39 vs St. Louis Cardinals 0.26 — leans St. Louis Cardinals
- Pittsburgh Pirates 2.61 vs St. Louis Cardinals 4.44 — leans Pittsburgh Pirates
- Pittsburgh Pirates 1.35 vs St. Louis Cardinals 1.48 — leans Pittsburgh Pirates
- Pittsburgh Pirates 3.07 vs St. Louis Cardinals 3.18 — roughly even
- Pittsburgh Pirates 0 vs St. Louis Cardinals 0 — roughly even
Offense & matchup — leans Pittsburgh Pirates
Analyzing recent offensive output (OBP, SLG) and platoon matchup data against the opposing starter's throwing arm, the matchup favors the Pittsburgh Pirates.
- Pittsburgh Pirates 0.405 vs St. Louis Cardinals 0.393 — leans Pittsburgh Pirates
- Pittsburgh Pirates 0.476 vs St. Louis Cardinals 0.519 — leans St. Louis Cardinals
- Pittsburgh Pirates 0.342 vs St. Louis Cardinals 0.426 — leans St. Louis Cardinals
- Pittsburgh Pirates 0.447 vs St. Louis Cardinals 0.563 — leans St. Louis Cardinals
- Pittsburgh Pirates 0.441 vs St. Louis Cardinals 0.400 — leans Pittsburgh Pirates
- Pittsburgh Pirates 0.526 vs St. Louis Cardinals 0.494 — leans Pittsburgh Pirates
- Pittsburgh Pirates 0.939 vs St. Louis Cardinals 0.678 — leans Pittsburgh Pirates
- Pittsburgh Pirates 0.036 vs St. Louis Cardinals 0.006 — leans Pittsburgh Pirates
Series & head-to-head — leans St. Louis Cardinals
Prior head-to-head meetings this season's training window — win rate and run differential between these clubs — the matchup favors the St. Louis Cardinals.
- Pittsburgh Pirates 0.455 vs St. Louis Cardinals 0.545 — leans St. Louis Cardinals
- Pittsburgh Pirates 0 vs St. Louis Cardinals 0 — roughly even
Betting Lines
Pittsburgh Pirates -1.5 | O/U 7.5 (FanDuel)
Final Score
St. Louis Cardinals 5, Pittsburgh Pirates 1 — St. Louis Cardinals win — Model pick was correct
This analysis is generated by a machine-learning model and is intended for
informational and entertainment purposes only. It does not constitute financial
or betting advice. Past model performance does not guarantee future results.
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