Regular season

• April 20, 1912: Navin Field opened the same day as Fenway Park
  Fenway Park
  Fenway Park is a baseball park near Kenmore Square in Boston, Massachusetts. Located at 4 Yawkey Way, it has served as the home ballpark of the Boston Red Sox baseball club since it opened in 1912, and is the oldest Major League Baseball stadium currently in use. It is one of two "classic"...
  
  . It was supposed to be opened on April 18 (like Fenway Park) but it rained in both cities on that day. Shoeless Joe Jackson
  Shoeless Joe Jackson
  Joseph Jefferson Jackson , nicknamed "Shoeless Joe", was an American baseball player who played Major League Baseball in the early part of the 20th century...
  
   scored the first run in Tiger Stadium.

• May 18, 1912: Tigers players went on strike to protest the suspension of star center fielder
  Center fielder
  A center fielder, abbreviated CF, is the outfielder in baseball who plays defense in center field – the baseball fielding position between left field and right field...
  
   Ty Cobb
  Ty Cobb
  Tyrus Raymond "Ty" Cobb , nicknamed "The Georgia Peach," was an American Major League Baseball outfielder. He was born in Narrows, Georgia...
  
  , who had gone into the stands on May 15 to attack a disabled fan who had been abusing him. The Tigers sent out a team of replacement players, mostly local college and sandlot players but also including Tigers coaches Joe Sugden
  Joe Sugden (baseball)
  Joseph Sugden , was a professional baseball player who played catcher in the Major Leagues from -. He would play for the Pittsburgh Pirates, Cleveland Spiders, St. Louis Cardinals, Chicago White Sox, St...
  
   and 48-year-old Deacon McGuire
  Deacon McGuire
  James Thomas "Deacon" McGuire was a catcher, manager and coach in Major League Baseball who spent over a quarter of a century playing professional baseball in a much-traveled career which saw him set several records for durability...
  
  . Manager Hughie Jennings
  Hughie Jennings
  Hugh Ambrose Jennings was a Major League Baseball player and manager from 1891 to 1925. Jennings was a leader, both as a batter and as a shortstop, with the Baltimore Orioles teams that won National League championships in 1894, 1895, and 1896. During the three championship seasons, Jennings had...
  
   also entered the game as a pinch hitter
  Pinch hitter
  In baseball, a pinch hitter is a substitute batter. Batters can be substituted at any time while the ball is dead ; the manager may use any player that has not yet entered the game as a substitute...
  
  . Starting pitcher Allan Travers
  Allan Travers
  Aloysius Joseph "Allan" Travers, aka Rev. Aloysius Stanislaus Travers was a Major League Baseball pitcher who made a one-game appearance during the 1912 strike of the Detroit Tigers....
  
   gave up 24 runs on 26 hits in a 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...
  
   loss, both American League records.

• July 4, 1912: George Mullin
  George Mullin (baseball)
  George Joseph Mullin was a right-handed pitcher in Major League Baseball who played fourteen seasons with the Detroit Tigers and Washington Senators of the American League and the Indianapolis Hoosiers/Newark Pepper of the Federal League.-Career Overview:Mullin holds the Detroit Tigers...
  
   threw the first no-hitter in Detroit Tigers history. The Tigers beat the St. Louis Browns
  Baltimore Orioles
  The Baltimore Orioles are a professional baseball team based in Baltimore, Maryland in the United States. They are a member of the Eastern Division of Major League Baseball's American League. One of the American League's eight charter franchises in 1901, it spent its first year as a major league...
  
   by a score of 7-0. It was also Mullin's 32nd birthday.

Notable transactions

• August 26, 1912: Willie Jensen
  Willie Jensen
  William Christian Jensen was a Major League Baseball pitcher. He played parts of two seasons in the majors, for the Detroit Tigers and for the Philadelphia Athletics.-Sources:...
  
   was purchased by the Tigers from the New Haven Murlins.

Roster

Starters by position

Other batters

Starting pitchers

Other pitchers

Relief pitchers