2003 Chicago White Sox season

The 2003 Chicago White Sox season was the White Sox's 104th season. They finished with a record of 86–76, good enough for second place in the American League Central, four games behind the champion Minnesota Twins.

The White Sox also hosted the 74th Major League Baseball All-Star Game on July 15.

Offseason

 * 12/3/02: Traded closer Keith Foulke, catcher Mark Johnson, and minor league pitcher Joe Valentine to the Oakland Athletics for closer Billy Koch, minor league pitcher Neal Cotts, and minor league outfielder Daylan Holt.
 * 12/20/02: Sandy Alomar Jr. was signed as a free agent with the Chicago White Sox.
 * 1/15/03: Traded relief pitcher Antonio Osuna and minor league pitcher Delvis Lantigua to the New York Yankees for starting pitcher Orlando Hernández. Traded Hernandez, outfielder Jeff Liefer, and relief pitcher Rocky Biddle to the Montreal Expos for starting pitcher Bartolo Colón and minor league infielder Jorge Nunoz.
 * 1/27/03: Signed free agent starting pitcher Esteban Loaiza to a minor league contract.

Regular season
On April 15, 2003, a fan came out of the stands during the baseball game between the Kansas City Royals and Chicago White Sox and attacked first base umpire Laz Diaz. After Carlos Lee flied out to right to end the eighth inning, the fan ran on the field and tried to tackle Diaz, wrapping his arms around the umpire's legs.

Notable transactions

 * 7/1/03 Traded minor league pitchers Edwin Almonte, Royce Ring, and minor league infielder Andrew Salvo to the New York Mets for 2B Roberto Alomar.
 * 7/1/03 Traded minor league pitchers Frank Francisco, Josh Rupe, and Anthony Webster to the Texas Rangers for CF Carl Everett.
 * 9/29/03 Fired manager Jerry Manuel.

Batting
Note: G = Games played; AB = At bats; R = Runs scored; H = Hits; 2B = Doubles; 3B = Triples; HR = Home runs; RBI = Runs batted in; BB = Base on balls; SO = Strikeouts; AVG = Batting average; SB = Stolen bases

Pitching
Note: W = Wins; L = Losses; ERA = Earned run average; G = Games pitched; GS = Games started; SV = Saves; IP = Innings pitched; H = Hits allowed; R = Runs allowed; ER = Earned runs allowed; HR = Home runs allowed; BB = Walks allowed; K = Strikeouts

Farm system
LEAGUE CHAMPIONS: Winston-Salem