MLB Preview · May 15, 2027

Los Angeles Dodgers at Boston Red Sox: Prediction, Odds & Preview

LAD 0-0at BOS 0-0·Fenway Park·

DiamondIQ Model — Win Probability

LAD47.5%52.5%BOS

The model leans BOS (52.5%). 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

With probable starters not yet confirmed for this Fenway Park meeting between the Los Angeles Dodgers and Boston Red Sox, this is an early look at what figures to be a compelling interleague matchup. The DiamondIQ model's estimate gives Boston a 52.5% win probability against Los Angeles's 47.5%, a narrow edge driven by home field at Fenway and the model's starting-pitcher quality calibration, even with neither rotation slot locked in. Both clubs enter at 0-0 on the season-long ledger at this stage of the preview, so the model's lean is tight, and the gap between these rosters on paper is thin enough that the announced starter on each side will likely be the single biggest swing factor once names are confirmed.

On the injury front, both teams carry notable absences that could matter as this series approaches. Los Angeles is without five pitchers, including Blake Snell and Ben Casparius on the 60-day IL, which puts real strain on rotation depth and shapes how the Dodgers construct their bullpen usage through a road series. Their BullpenIQ sits at 61 out of 100 with three fresh arms available and three heavy, with Tanner Scott serving as the closer. Boston's own pitching situation is complicated by the 60-day losses of Garrett Crochet and Johan Oviedo, while the infield has been thinned by Curtis Mead, Isiah Kiner-Falefa, and Marcelo Mayer all landing on the injured list. The Red Sox bullpen checks in at a BullpenIQ of 57, with Aroldis Chapman closing, two fresh arms, and three heavy.

Forecast conditions at first pitch call for drizzle, 79 degrees, and nearly still air at 1 mph blowing south to right-to-left, with only 7% precipitation probability — essentially a non-factor unless conditions change closer to game time. The model's lean toward Boston is marginal and heavily contingent on who gets the ball, so the rotation announcements over the coming days will be the critical update to watch before this series opener takes shape.

Analysis generated by DiamondIQ's model.

Forecast at First Pitch

☁️85°FOvercast
Wind 2 mph ENE · in from CF
Precip 41%

Injured List

LAD
Dalton Rushing (C)Injured 10-Day
Blake Treinen (P)Injured 15-Day
Brock Stewart (P)Injured 15-Day
Will Klein (P)Injured 15-Day
Ben Casparius (P)Injured 60-Day
Blake Snell (P)Injured 60-Day
BOS
Curtis Mead (3B)Injured 10-Day
Isiah Kiner-Falefa (2B)Injured 10-Day
Garrett Crochet (P)Injured 60-Day
Johan Oviedo (P)Injured 60-Day
Kutter Crawford (P)Injured 60-Day
Roman Anthony (LF)Injured 60-Day
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