Pittsburgh Pirates vs Chicago Cubs MLB Prediction & Picks – September 13, 2026

Pittsburgh Pirates at Chicago Cubs: Game Preview

Winning at Wrigley Field starts with overpowering offense and run prevention, and that’s exactly how Chicago has separated from the middle of the pack in the National League Central. The Cubs enter this matchup boasting an 83-66 overall record and a notable 43-31 mark at home. That puts them in clear control over a Pirates team that’s struggled to break past .500 and bring consistency on the road.

The Pirates, despite putting up a respectable point differential this year (+25), are only 36-41 away from home and have a 19-19 away record against the spread. The gap expands when you realize the Cubs’ run differential sits at +139, greatest in the division outside Milwaukee. This isn’t just about home-field advantage; the data overwhelmingly tips in favor of Chicago’s offensive and defensive production over a 149-game sample.

Data-Driven Analysis

This game is about margin. The Cubs bring a top-tier run differential, outscoring opponents by nearly a run per game at home, while the Pirates hover basically at even both straight-up and against the spread on the road. The difference in offensive output — a half run per game — is critical for moneyline favorites in low-total games.

Key Injury Reports

Pittsburgh Pirates: Mitch Keller, Endy Rodriguez, Braxton Ashcraft, Esmerlyn Valdez

Chicago Cubs: Porter Hodge, Cade Horton, Ben Brown, Riley Martin, Dansby Swanson, Kirby Yates

Key Matchups

Matchup 1: Cubs Offensive Firepower vs Pirates Pitching

With Chicago averaging 5.34 runs and featuring a team OPS of .771, their lineup is the sharpest asset in this game. The Pirates’ pitching staff owns a 4.18 ERA, but pitching depth is impacted by injuries, raising question marks about their ability to limit this Cubs attack for nine innings.

Matchup 2: Defensive Efficiency and Fielding

The Cubs have committed just 54 errors this season for a .990 fielding percentage. That efficiency helps prevent extra bases and supports their pitching staff, resulting in fewer run-scoring opportunities for the opposition. The Pirates lag here with 92 errors, putting them at risk for giving away crucial outs.

Matchup 3: High-Leverage Situations

Both teams are close in save opportunities and bullpen ERA, but Chicago’s home dominance (six shutouts at Wrigley) and ability to close tight games makes them the safer pick when the line is tight. Their +12 home win margin cannot be ignored in a short-moneyline spot.

Summary

• Consensus Line: Chicago Cubs -144
• Data-Driven Prediction: Chicago Cubs straight up
• Confidence: Medium
• Reasoning: The Cubs’ home record, offensive production, and run differential give them a clear advantage. The Pirates’ injuries and road mediocrity seal the call. Take the Cubs -144 with confidence.

21+ only. Gambling problem? Call 1-800-GAMBLER. For entertainment purposes only.

Ben Gale

SEO Content Writer

3+ Years Experience

Over the last 3 years Ben has helped build The Picks up, with a love of US sport he has focussed on NBA and NFL – though at 6″4 it’s no surprise that his real love is the NBA, and he’s developing a reputation within the team of being able to offer real insights into NBA stats.