MLB Recap · September 18, 2023

Baltimore Orioles at Houston Astros: Final Score & Recap

BAL8
Final
HOU7

Line Score

Team123456789RHE
BAL0010202038161
HOU1000041107100

The Story

The Baltimore Orioles rallied past the Houston Astros 8-7 at Minute Maid Park on September 18, 2023, in a game that turned on a single swing in the top of the ninth inning. The DiamondIQ model had opened with Houston holding a 47% win probability at first pitch, but Baltimore erased a deficit built through six innings of Astros offense to force a dramatic finish. The decisive blow came from Cedric Mullins, whose home run off Ryan Pressly in the top of the ninth swung win probability by 73.9 percentage points, the single largest shift of the contest and the play that effectively decided the outcome.

The path to that climactic moment wound through several significant swings of momentum. Ryan O'Hearn had kept Baltimore alive with a single off Justin Verlander in the top of the fifth that moved the needle 20.1 percentage points, contributing to a two-run frame that gave the Orioles life. Houston responded emphatically in the bottom of the sixth, with Jose Altuve delivering a double off Jacob Webb that added 23.2 percentage points to the Astros' win probability as part of a four-run inning. Cionel Pérez closed out the game for Baltimore despite a shaky finish: a fielding error on a Yordan Alvarez plate appearance swung 25.1 percentage points back toward Houston, but Kyle Tucker's groundout to end the ninth sealed the victory and dropped Houston's win probability to zero.

Among the standout performers by the DiamondIQ model's accounting, Mullins finished as Baltimore's most impactful bat at plus-66.1% WPA with a RE24 of plus-1.7, while O'Hearn posted plus-35.7% WPA and a RE24 of plus-2.9, reflecting his consistent run-creation value throughout the lineup. On Houston's side, Chas McCormick generated plus-35.0% WPA on the strength of the Astros' middle-inning surge. On the mound, John Means led Baltimore's pitching staff with plus-12.6% WPA, followed by Héctor Neris at plus-10.8%, as the Orioles' bullpen absorbed enough pressure to hand the ball to Pérez for the final three outs of an 8-7 road victory.

Analysis generated by DiamondIQ's model.

Win Probability

755025BAL bats firstFinalHOU win %BAL win %
DiamondIQ model home win probability across the game (pre-game 46.7% → final 0%).

Biggest Plays by Win-Probability Added

Cedric Mullins Home Run
Top 9th · off Ryan Pressly
+73.9%
Kyle Tucker Groundout
Bot 9th · off Cionel Pérez
-25.9%
Yordan Alvarez Field Error
Bot 9th · off Cionel Pérez
+25.1%
Jose Altuve Double
Bot 6th · off Jacob Webb
+23.2%
Ryan O'Hearn Single
Top 5th · off Justin Verlander
+20.1%

Top Batters by WPA

Cedric Mullins+66.1%+1.7 RE24
Ryan O'Hearn+35.7%+2.9 RE24
Chas McCormick+35.0%+0.3 RE24

Top Pitchers by WPA

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