The team from Bloomington folded. The Quincy, Illinois team from the Central Association joined the league. The Springfield team, with a 12–4 record, moved to Decatur, Illinois on May 31, where their record was 57–56. 1912 Illinois–Indiana–Iowa League The teams from Rock Island and Waterloo folded. New teams from Springfield, Illinois and Bloomington, Indiana joined the league. 1913 Illinois–Indiana–Iowa League 1914 Illinois–Indiana–Iowa League The Danville team, with a record of 26–53, moved to Moline, Illinois on July 14, where their record was 20–33. 1915 Illinois–Indiana–Iowa League The Springfield team folded. A new team in Rockford, Illinois formed. Dubuque moved to Freeport, Illinois during the season. The Decatur team folded on August 10. The league adopted a playoff system in which the team with the best record in the first half of the season would play the team with the best record in the second half of the season. Moline beat Davenport 4 games to 2 for the title. 1916 Illinois–Indiana–Iowa League The Freeport team folded. New teams in Hannibal, Missouri and Rock Island, Illinois formed and joined the league. The playoff system was apparently dropped. 1917 Illinois–Indiana–Iowa League The Davenport team folded. A new team in Alton, Illinois formed and joined the league. 1918, The league suspended operations because of World War I. 1919 Illinois–Indiana–Iowa League The teams in Alton, Hannibal, Quincy, and Rock Island folded. New teams in Evansville, Indiana and Terre Haute, Indiana formed and joined the league. 1920 Illinois–Indiana–Iowa League New teams in Cedar Rapids, Iowa and Rock Island, Illinois formed and joined the league. Evansville changed their names to the "Evas". 1921 Illinois–Indiana–Iowa League 1922 Illinois–Indiana–Iowa League The teams in Cedar Rapids and Rock Island moved to the Mississippi Valley League. New teams in Danville and Decatur formed and joined the league. 1923 Illinois–Indiana–Iowa League 1924 Illinois–Indiana–Iowa League The Rockford team folded. The Moline team moved to the Mississippi Valley League. 1925 Illinois–Indiana–Iowa League New teams in Quincy and Springfield formed and joined the league. 1926 Illinois–Indiana–Iowa League Springfield played Bay City of the Michigan State League and won 4 games to none. They were leading against Des Moines of the Western League 3 games to 1 when the series was canceled due to cold weather. 1927 Illinois–Indiana–Iowa League 1928 Illinois–Indiana–Iowa League The league returned to the playoff format in which the team with the best record in the first half of the season played the