MLB Recap · April 2, 2023

Baltimore Orioles at Boston Red Sox: Final Score & Recap

BAL5
Final
BOS9

Line Score

Team123456789RHE
BAL0000302005102
BOS11103021-9140

The Story

The Boston Red Sox defeated the Baltimore Orioles 9-5 at Fenway Park on April 2, 2023, in a game that opened with Boston holding a 54% pre-game win probability according to the DiamondIQ model's estimate and closed with that figure reaching 100%. The contest turned decisively in the fifth inning, when a flurry of home runs and timely hits shifted the game's trajectory. Adam Frazier delivered the single biggest win-probability swing of the afternoon with a home run off Tanner Houck that added 16.8% to Baltimore's chances, and teammate Cedric Mullins followed with his own home run off Houck worth an additional 12.4%, as the Orioles briefly put three runs on the board in the top half of the frame. Boston answered immediately in the bottom of the fifth, with Adam Duvall's single off Bryan Baker adding 13.8% to Boston's win probability and Masataka Yoshida's single off Cole Irvin contributing another 11.1%, erasing Baltimore's momentary lead and swinging control firmly back to the Red Sox.

The final box score reflected Boston's dominance across nine innings, with the Red Sox finishing with 14 hits and no errors compared to Baltimore's 10 hits and two costly errors. By cumulative win-probability impact, Adam Duvall was Boston's most valuable offensive contributor at plus-23.7% with a RE24 of plus-2.1, narrowly edging Cedric Mullins, who finished as Baltimore's top performer at plus-23.2% and a RE24 of plus-1.4 despite being on the losing side. Adam Frazier rounded out the top performers at plus-16.6% and a RE24 of plus-2.2. Out of the bullpen, Boston's John Schreiber and Chris Martin steadied the game with WPA contributions of plus-5.0% and plus-4.5% respectively, helping preserve what became an insurmountable lead as the Orioles were held scoreless over the final two innings.

Analysis generated by DiamondIQ's model.

Win Probability

755025BAL bats firstFinalBOS win %BAL win %
DiamondIQ model home win probability across the game (pre-game 54% → final 100%).

Biggest Plays by Win-Probability Added

Adam Frazier Home Run
Top 5th · off Tanner Houck
+16.8%
Adam Duvall Single
Bot 5th · off Bryan Baker
+13.8%
Cedric Mullins Single
Top 7th · off Richard Bleier
+13.1%
Cedric Mullins Home Run
Top 5th · off Tanner Houck
+12.4%
Masataka Yoshida Single
Bot 5th · off Cole Irvin
+11.1%

Top Batters by WPA

Adam Duvall+23.7%+2.1 RE24
Cedric Mullins+23.2%+1.4 RE24
Adam Frazier+16.6%+2.2 RE24

Top Pitchers by WPA

Full box score, pitch data, and the play-by-play timeline
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