This article is about the minor league baseball league that played in 1907 and from 1948 to 1951. For the league with a similar name that played in the 1908 season, see Indiana-Ohio League.
The Ohio–Indiana League was a Class D level minor league baseball league that operated from 1948 to 1951. The league was composed of six teams from Ohio and two teams from Indiana. The Marion Red Sox won three consecutive league championships beginning in 1949. There was also a six–team Ohio–Indiana League that played the 1907 season.
Playoffs - Marion Red Sox 3 games Portsmouth A's 1; Playoffs - Muncie Reds 3 games Springfield Giants 1 Finals - Marion Red Sox 4 games Muncie Reds 3[3]
Playoffs - Marion Red Sox 3 games Springfield Giants 1;Playoffs - Newark Yankees 3 games Richmond Tigers 2 Finals - Marion Red Sox 4 games Newark Yankees 0 [4]
Newark won the first half which ended June 18. Newark folded July 17 and the second half was started over, won by Marion. The Springfield Giants were a playoff qualifier.
Playoffs - Marion Red Sox 4 games Springfield Giants 0[5]