1903 South Texas League Playoff: San Antonio 7 games, Galveston 2.
1904 South Texas League Playoff: Galveston 4 games, Houston 3.
1905 South Texas League Beaumont (40–68) moved to Brenham (1–6) August 21; Brenham became an orphan team August 27 playing in Austin and San Antonio (4–7).
1906 South Texas League Playoff: Austin 4 games, Houston 4; Austin was awarded the championship after Houston refused to stop using non–league players.
An additional game was played after Austin had been awarded the title by forfeit.