← All picks for July 18, 2026
St. Louis Cardinals vs Arizona Diamondbacks
July 18, 2026 — MLB Prediction & Betting Pick
Our model leans Arizona Diamondbacks
On balance, more tracked inputs leaned St. Louis Cardinals (12 edges vs 9 for Arizona Diamondbacks).
Note: the model leans Arizona Diamondbacks even though the simple edge count favors St. Louis Cardinals. 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 Arizona Diamondbacks
Looking at recent performance trends over the last ten games — including win rate, run differential, and offensive momentum — the matchup favors the Arizona Diamondbacks.
- Arizona Diamondbacks 0.500 vs St. Louis Cardinals 0.450 — roughly even
- Arizona Diamondbacks 0.60 vs St. Louis Cardinals 0.15 — leans Arizona Diamondbacks
- Arizona Diamondbacks 4.35 vs St. Louis Cardinals 3.95 — leans Arizona Diamondbacks
- Arizona Diamondbacks 3.75 vs St. Louis Cardinals 3.80 — roughly even
- Arizona Diamondbacks 0.667 vs St. Louis Cardinals 0.667 — roughly even
- Arizona Diamondbacks 1.379 vs St. Louis Cardinals 1.013 — leans Arizona Diamondbacks
Season to date — leans St. Louis Cardinals
Season-long stats including runs scored and allowed per game, home/road splits, and weighted offensive production (wRC+) the matchup favors the St. Louis Cardinals.
- Arizona Diamondbacks 4.29 vs St. Louis Cardinals 4.34 — roughly even
- Arizona Diamondbacks 4.43 vs St. Louis Cardinals 4.27 — leans St. Louis Cardinals
- Arizona Diamondbacks 0.429 vs St. Louis Cardinals 0.714 — leans St. Louis Cardinals
- Arizona Diamondbacks 97.9 vs St. Louis Cardinals 101.5 — leans St. Louis Cardinals
Starting pitching (recent starts) — leans Arizona Diamondbacks
Evaluating the probable starters based on recent ERA, WHIP, strikeout rate, and pitching form trends, the matchup favors the Arizona Diamondbacks.
- Arizona Diamondbacks 5.30 vs St. Louis Cardinals 2.45 — leans St. Louis Cardinals
- Arizona Diamondbacks 1.45 vs St. Louis Cardinals 1.23 — leans St. Louis Cardinals
- Arizona Diamondbacks 8.20 vs St. Louis Cardinals 5.52 — leans Arizona Diamondbacks
- Arizona Diamondbacks -6.24 vs St. Louis Cardinals 2.17 — leans Arizona Diamondbacks
- Arizona Diamondbacks 3.33 vs St. Louis Cardinals 4.85 — leans Arizona Diamondbacks
- Arizona Diamondbacks 1.11 vs St. Louis Cardinals 1.58 — leans Arizona Diamondbacks
- Arizona Diamondbacks 2.77 vs St. Louis Cardinals 3.60 — leans Arizona Diamondbacks
- Arizona Diamondbacks 0 vs St. Louis Cardinals 0 — roughly even
Offense & matchup — leans St. Louis Cardinals
Analyzing recent offensive output (OBP, SLG) and platoon matchup data against the opposing starter's throwing arm, the matchup favors the St. Louis Cardinals.
- Arizona Diamondbacks 0.373 vs St. Louis Cardinals 0.393 — leans St. Louis Cardinals
- Arizona Diamondbacks 0.508 vs St. Louis Cardinals 0.519 — roughly even
- Arizona Diamondbacks 0.384 vs St. Louis Cardinals 0.426 — leans St. Louis Cardinals
- Arizona Diamondbacks 0.503 vs St. Louis Cardinals 0.563 — leans St. Louis Cardinals
- Arizona Diamondbacks 0.361 vs St. Louis Cardinals 0.402 — leans St. Louis Cardinals
- Arizona Diamondbacks 0.450 vs St. Louis Cardinals 0.500 — leans St. Louis Cardinals
- Arizona Diamondbacks 0.586 vs St. Louis Cardinals 0.557 — roughly even
- Arizona Diamondbacks -0.012 vs St. Louis Cardinals 0.009 — leans St. Louis Cardinals
Series & head-to-head — Mixed
Head-to-head history between St. Louis Cardinals and Arizona Diamondbacks does not clearly favor either side.
- Arizona Diamondbacks 0.400 vs St. Louis Cardinals 0.600 — leans St. Louis Cardinals
- Arizona Diamondbacks 0.80 vs St. Louis Cardinals -0.80 — leans Arizona Diamondbacks
Betting Lines
St. Louis Cardinals +1.5 | O/U 8.5 (Kalshi)
Final Score
St. Louis Cardinals 3, Arizona Diamondbacks 5 — Arizona Diamondbacks 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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