Offseason

• February, 1905: Branch Rickey
  Branch Rickey
  Wesley Branch Rickey was an innovative Major League Baseball executive elected to the Baseball Hall of Fame in 1967...
  
   was traded by the White Sox to the Browns for a player to be named later. The Browns completed the deal by sending Frank Roth
  Frank Roth
  Francis Charles Roth was a Major League Baseball catcher. He played all or part of six seasons in the majors, between and , for the Philadelphia Phillies, St. Louis Browns, Chicago White Sox and Cincinnati Reds...
  
   to the White Sox in June.

Regular season

• July 1, 1905: Frank Owen became the first pitcher in the history of the American League
  American League
  The American League of Professional Baseball Clubs, or simply the American League , is one of two leagues that make up Major League Baseball in the United States and Canada. It developed from the Western League, a minor league based in the Great Lakes states, which eventually aspired to major...
  
   to have two complete game
  Complete game
  In baseball, a complete game is the act of a pitcher pitching an entire game without the benefit of a relief pitcher.As demonstrated by the charts below, in the early 20th century, it was common for most good Major League Baseball pitchers to pitch a complete game almost every start. Pitchers were...
  
   victories on the same day. On September 26, teammate Ed Walsh
  Ed Walsh
  Edward Augustine Walsh was a Major League Baseball pitcher. He holds the record for lowest career ERA, 1.82.-Baseball career:Born in Plains Township, Pennsylvania, Walsh had a brief though remarkable major league career...
  
  would match the feat.

Roster

Starters by position

Other batters

Starting pitchers

Other pitchers