Baltimore Orioles at Boston Red Sox: Final Score & Recap

The Baltimore Orioles handed the Boston Red Sox a lopsided 11-2 defeat at Fenway Park on September 8, 2023, erasing what the DiamondIQ model had estimated as a 41 percent pre-game win probability for the home team down to zero by the final out. Baltimore collected 14 hits without committing an error while Boston managed just four hits and an error across nine innings. The Orioles broke the scoreless tie in the fourth inning on a Ryan O'Hearn home run off Tanner Houck, a swing that shifted win probability 11.3 percent in Baltimore's favor. The decisive blow came two innings later when Cedric Mullins delivered a double off Houck that swung the win probability an additional 18.3 percent toward the Orioles, the single largest play of the contest. Austin Hays added a single off Houck in that same sixth-inning frame worth 7.8 percent, and Baltimore pushed across four runs in the inning to build a commanding lead. Adley Rutschman's eighth-inning home run off John Schreiber contributed another 5.4 percent swing, capping a four-run ninth that made the final margin emphatic.

Mullins finished as the game's top performer by WPA at plus-15.5 percent alongside a RE24 of plus-1.1, while O'Hearn's home run powered him to plus-14.4 percent WPA and plus-0.7 RE24. On the Boston side, Connor Wong posted the most positive WPA among batters at plus-5.6 percent with a team-best RE24 of plus-1.4, representing the lone bright spot in an otherwise quiet offensive night for the Red Sox. Kyle Bradish led all pitchers with a plus-11.6 percent WPA contribution, and Jacob Webb added plus-6.3 percent out of the bullpen as Baltimore's pitching staff kept Boston's lineup in check throughout. Rutschman had been a negative factor early, grounding into a double play in the third inning for a swing of minus-8.0 percent, but he recovered to finish with meaningful contributions at the plate as the Orioles cruised to a dominant road victory.