MLB Preview · September 19, 2026

Philadelphia Phillies at New York Mets: Prediction, Odds & Preview

PHI 56-47at NYM 43-60·Citi Field·

DiamondIQ Model — Win Probability

PHI54%46%NYM

The model leans PHI (54%). DiamondIQ model v2: season records, home-field advantage, the starting-pitcher quality gap (PitchIQ), and a calibration adjustment fit and validated on four seasons of backtest — plus live game state once underway.

The Matchup

The Philadelphia Phillies carry a 56-47 record into Citi Field to face a New York Mets club sitting at 43-60, and that 13-game gap in wins forms the foundation of the DiamondIQ model's read on this contest. The DiamondIQ model's estimate gives Philadelphia a 54 percent win probability against New York's 46 percent, a lean driven by the Phillies' clear advantage in team record, a starting-pitcher quality edge captured in the model's PitchIQ component, and backtest-fit calibration — though the model does not yet account for bullpens, lineups, or game-day conditions. With probable starters not yet announced, this is an early look, and how the pitching picture fills in over the coming days will be the most consequential variable to watch before locking in any analysis.

On the injury front, both clubs arrive with notable absences. Philadelphia is without outfielder Adolis García on the 60-day IL along with three bullpen arms in Brad Keller, Lou Trivino III, and Tanner Banks, and catcher Garrett Stubbs on the 10-day. That reliever attrition partially explains the Phillies' BullpenIQ grade of 58 out of 100, with three arms logging heavy recent usage against three fresh options and closer Jhoan Duran available. The Mets counter with a BullpenIQ of 56, four fresh arms, and closer Devin Williams in reserve, while operating without first baseman Mark Vientos and a pair of 60-day IL pitchers in Clay Holmes and Dedniel Núñez — absences that have meaningfully compressed their depth all season.

Conditions at first pitch project to be clean and favorable for offense: clear skies, 78 degrees, and a 9 mph wind blowing SSE out to center field with no precipitation in the forecast. That wind direction could carry balls toward the gap and over the fence at Citi Field, worth monitoring as lineups are posted. The model leans Philadelphia in what the records suggest is a meaningful talent gap, but Mets home field and closer Devin Williams give New York a credible path. The variable to watch as this game draws closer is the starter announcement — the PitchIQ component of the model's estimate will shift materially once both probable pitchers are confirmed.

Analysis generated by DiamondIQ's model.

Forecast at First Pitch

78°FPartly cloudy
Wind 9 mph SSE · out to CF
Precip 1%

Injured List

PHI
Garrett Stubbs (C)Injured 10-Day
Brad Keller (P)Injured 15-Day
Lou Trivino III (P)Injured 15-Day
Tanner Banks (P)Injured 15-Day
Adolis García (RF)Injured 60-Day
Johan Rojas (CF)Injured 60-Day
NYM
Mark Vientos (1B)Injured 10-Day
Austin Warren (P)Injured 15-Day
Clay Holmes (P)Injured 60-Day
Dedniel Núñez (P)Injured 60-Day
Justin Hagenman (P)Injured 60-Day
Reed Garrett (P)Injured 60-Day
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