Chicago Cubs vs Pittsburgh Pirates

September 15, 2025 — MLB Prediction & Betting Pick

Our model leans Chicago Cubs

On balance, more tracked inputs leaned Chicago Cubs (18 edges vs 7 for Pittsburgh Pirates).

The model's lean aligns with the overall edge count. Both the machine-learning model and the raw feature comparison point the same direction for this game.

Matchup Breakdown

Recent form (last ~10 games) — leans Chicago Cubs

Looking at recent performance trends over the last ten games — including win rate, run differential, and offensive momentum — the matchup favors the Chicago Cubs.

Pittsburgh Pirates 0.450 vs Chicago Cubs 0.550 — leans Chicago Cubs
Pittsburgh Pirates 0.20 vs Chicago Cubs 0.40 — leans Chicago Cubs
Pittsburgh Pirates 3.85 vs Chicago Cubs 4.75 — leans Chicago Cubs
Pittsburgh Pirates 3.65 vs Chicago Cubs 4.35 — leans Pittsburgh Pirates
Pittsburgh Pirates 0.333 vs Chicago Cubs 0.667 — leans Chicago Cubs
Pittsburgh Pirates 1.126 vs Chicago Cubs 0.982 — leans Pittsburgh Pirates

Season to date — leans Chicago Cubs

Season-long stats including runs scored and allowed per game, home/road splits, and weighted offensive production (wRC+) the matchup favors the Chicago Cubs.

Pittsburgh Pirates 3.58 vs Chicago Cubs 4.81 — leans Chicago Cubs
Pittsburgh Pirates 4.04 vs Chicago Cubs 4.01 — roughly even
Pittsburgh Pirates 0.571 vs Chicago Cubs 0.545 — roughly even
Pittsburgh Pirates 90.6 vs Chicago Cubs 101.7 — leans Chicago Cubs

Starting pitching (recent starts) — Mixed

The starting pitching matchup between Chicago Cubs and Pittsburgh Pirates grades out as a toss-up based on recent outings.

Pittsburgh Pirates 1.25 vs Chicago Cubs 5.25 — leans Pittsburgh Pirates
Pittsburgh Pirates 0.92 vs Chicago Cubs 1.38 — leans Pittsburgh Pirates
Pittsburgh Pirates 9.55 vs Chicago Cubs 6 — leans Pittsburgh Pirates
Pittsburgh Pirates -0.19 vs Chicago Cubs 8.31 — leans Pittsburgh Pirates
Pittsburgh Pirates 2.91 vs Chicago Cubs 1.29 — leans Chicago Cubs
Pittsburgh Pirates 1.52 vs Chicago Cubs 0.76 — leans Chicago Cubs
Pittsburgh Pirates 4.25 vs Chicago Cubs 3.43 — leans Chicago Cubs
Pittsburgh Pirates 21.7 vs Chicago Cubs 19 — leans Chicago Cubs

Offense & matchup — leans Chicago Cubs

Analyzing recent offensive output (OBP, SLG) and platoon matchup data against the opposing starter's throwing arm, the matchup favors the Chicago Cubs.

Pittsburgh Pirates 0.361 vs Chicago Cubs 0.390 — leans Chicago Cubs
Pittsburgh Pirates 0.397 vs Chicago Cubs 0.501 — leans Chicago Cubs
Pittsburgh Pirates 0.299 vs Chicago Cubs 0.394 — leans Chicago Cubs
Pittsburgh Pirates 0.312 vs Chicago Cubs 0.469 — leans Chicago Cubs
Pittsburgh Pirates 0.376 vs Chicago Cubs 0.378 — roughly even
Pittsburgh Pirates 0.438 vs Chicago Cubs 0.488 — leans Chicago Cubs
Pittsburgh Pirates 0.533 vs Chicago Cubs 0.684 — leans Chicago Cubs
Pittsburgh Pirates 0.014 vs Chicago Cubs -0.012 — leans Pittsburgh Pirates

Series & head-to-head — leans Chicago Cubs

Prior head-to-head meetings this season's training window — win rate and run differential between these clubs — the matchup favors the Chicago Cubs.

Pittsburgh Pirates 0.300 vs Chicago Cubs 0.700 — leans Chicago Cubs
Pittsburgh Pirates -1.70 vs Chicago Cubs 1.70 — leans Chicago Cubs

Betting Lines

Chicago Cubs +1.5 | O/U 8.5 (FanDuel)

Final Score

Chicago Cubs 4, Pittsburgh Pirates 0 — Chicago Cubs 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. Please gamble responsibly.