Chicago Cubs vs Boston Red Sox Predictions Today: David Peterson vs Brayan Bello
The Boston Red Sox will beat the Chicago Cubs 3-2 in our forecast for September 25. Boston's stronger season bullpen numbers and Brayan Bello's two excellent September starts provide the clearest matchup edge. Confidence is low because Chicago brings the stronger scoring average and David Peterson's recent improvement. Neither the supplied spread prices nor Under 6.5 (-115) offers a convincing wager.
Chicago Cubs vs Boston Red Sox prediction and best bet
Boston gets the nod through run prevention. Bello has surrendered one earned run across his two September starts, and the Red Sox bullpen has a substantial season advantage over Chicago's. That combination supports Boston 3, Chicago 2, although the Cubs' offense makes this a fragile forecast.
The official betting recommendation is Pass. A projected five-run game makes the Under worth considering, but 6.5 leaves little protection against either starter returning to his less impressive season form. Boston's run line also demands a substantial price at +1.5 (-192). Favoring the Red Sox to win is a narrower judgment than declaring either market a worthwhile bet.
Odds, game time and how to watch
Game: Chicago at Boston, Friday, September 25, 2026, at 6:05 p.m. ET. Venue: Fenway Park. This is the doubleheader's second game.
Probable starters: Chicago left-hander David Peterson and Boston right-hander Brayan Bello.
Records: Chicago 88-71, Boston 85-74. Last 10: Cubs 5-5, Red Sox 4-6.
SportsJaw moneyline: Chicago -116; Boston -102. Run line: Chicago -1.5 (+158); Boston +1.5 (-192). Total: Over 6.5 (-105); Under 6.5 (-115).
Schedule: An expected nor'easter prompted moving Sunday's game into Friday's doubleheader.