MLB · 2026-09-12
Pittsburgh Pirates vs Chicago Cubs
Wrigley Field
Pittsburgh Pirates
74-74
VS
Chicago Cubs
82-66
53%
Chicago Cubs win probability · -122
Tale of the tape
47%Win probability53%
0.500Win %0.554
+26Run differential+138
Lean-122 · FanDuel
Chicago Cubs to win
The market (55%) rates this higher than our model (53%) — no real edge, so we pass.
Our read leans Chicago Cubs over Pittsburgh Pirates — a 53% win probability once everything is weighed. A modest 53% lean — fine as a small play or a parlay leg. Pitching matchup: Clay Holmes (2.39 ERA) vs Paul Skenes (3.83 ERA).
Why we lean this way
- Form & record: Chicago Cubs sit 82-66 (0.554), Pittsburgh Pirates 74-74 (0.500).
- Last 10: Chicago Cubs 4-6 (W1), Pittsburgh Pirates 7-3 (L1). Hot streaks move these lines fast.
- Run differential: Chicago Cubs +138, Pittsburgh Pirates +26 on the year — the most honest measure of how good a team actually is, beyond their record.
- On the mound: Chicago Cubs hand the ball to Clay Holmes; Pittsburgh Pirates counter with Paul Skenes. Starting pitching swings a baseball game more than any other factor.
- Home field: worth about +3.5% to Chicago Cubs in our model.
The verdict
Bottom line: Chicago Cubs to win is a slight lean. Treat it like a 53% spot — not a sure thing, because there is no such thing. Size it sensibly and enjoy the game.
Logged to our public track record and graded after the final. We analyze; we never take wagers. 21+.
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