2007 Baltimore Orioles season

The Baltimore Orioles' 2007 season involved the Orioles finishing with a record of 69 wins and 93 losses and fourth place in the AL East. On June 18, 2007, manager Sam Perlozzo was fired and replaced with bullpen coach Dave Trembley as interim manager. Trembley was named full-time manager on August 22, 2007. On this same day, the Orioles suffered a 30 to 3 loss to the Texas Rangers, the most lopsided loss in franchise history. Perlozzo's record was 29 wins, and 40 losses and Trembley's was 40 wins and 53 losses.

Offseason

 * November 12, 2006: Jaret Wright was traded by the New York Yankees with cash to the Baltimore Orioles for Chris Britton.
 * February 2, 2007: Paul Shuey was signed as a free agent with the Baltimore Orioles.

Transactions

 * June 30, 2007: Gustavo Molina was acquired of waivers from the Chicago White Sox.
 * August 9, 2007: Minor league player Sebastien Bouchier was acquired from the Seattle Mariners in exchange for John Parrish.
 * August 9, 2007: Chris Gomez was acquired off waivers from the Baltimore Orioles by the Cleveland Indians.
 * August 31, 2007: Steve Trachsel was acquired from the Chicago Cubs in exchange for Scott Moore and Rocky Cherry.
 * September 5, 2007: Paul Shuey was released by the Baltimore Orioles.
 * September 7, 2007: Víctor Santos was acquired from the Cincinnati Reds in exchange for cash.
 * September 9, 2007: Víctor Zambrano was acquired from the Pittsburgh Pirates in exchange for cash.

Rangers 30, Orioles 3
On August 22 of the season, the Orioles were slated to play against the Texas Rangers in a doubleheader, as the two teams had their game on August 20 postponed due to rain. Both teams were well out of contention by this point, with the Rangers at 54-70 and the Orioles at 58–65, and it was the first game for manager Dave Trembley in a full-time capacity, as he had served as an interim manager since June 19.

Every batter for the Rangers recorded at least two hits, with eight of the nine batters reaching home plate to score twice (with the exception of Michael Young, who left in the seventh inning after scoring once); incidentally, every Oriole pitcher (four used) allowed at least six runs to score. Wes Littleton, who came in when the score was 14–3 in the seventh inning, received the save for his three innings of work; the offensive explosion of sixteen runs after he came in helped set a new record for the largest margin of victory in a game with a save, and the previous record was coincidentally a win by the Rangers over the Orioles (26-7, April 19, 1996).

The victory set a record for most runs scored by an American League team in one game while being the most runs scored by a team since the Chicago Colts in 1897 (who scored 36 against the Louisville Colonels on June 29); it was the ninth time a team had scored 30 runs in a game. The 29 hits were the most by a team in a game since August 28, 1992, when Milwaukee recorded 33 hits against Toronto. Less than an hour after the game, the two teams played the second game of the doubleheader, which the Rangers won 9–7.

Starters by position
''Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Other batters
''Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in''

Starting pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Other pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Relief pitchers
Note: G = Games pitched; IP = Inning pitched; SV = Saves; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Farm system
LEAGUE CHAMPIONS: Frederick