MLB Preview · September 27, 2026
Chicago Cubs at Boston Red Sox: Prediction, Odds & Preview
CHC 81-63at BOS 79-65·Fenway Park·
DiamondIQ Model — Win Probability
CHC48.2%51.8%BOS
The model leans BOS (51.8%). 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.
Forecast at First Pitch
☁️76°FOvercast
Wind 10 mph SSW · out to CF
Precip 1%
Injured List
CHC
Dansby Swanson (SS)Injured 10-Day
Edward Cabrera (P)Injured 15-Day
Gavin Hollowell (P)Injured 15-Day
Ben Brown (P)Injured 60-Day
Cade Horton (P)Injured 60-Day
Hunter Harvey (P)Injured 60-Day
BOS
Ceddanne Rafaela (CF)Injured 10-Day
Curtis Mead (3B)Injured 10-Day
Masataka Yoshida (DH)Injured 10-Day
Willson Contreras (1B)Injured 10-Day
Justin Slaten (P)Injured 15-Day
Tyron Guerrero (P)Injured 15-Day
Follow it live in the Game Center
Live win probability, pitch-by-pitch, and the model updating in real time.