The 1990-91 Australian Baseball League championship was won by Perth Heat who defeated the Daikyo Dolphins 3–2 in the 5 game championship series. Ladder Championship series Final Series: Game 1: 1st Vs 2nd at Parry Field Final Series: Game 2: 1st Vs 2nd at Parry Field Final Series: Game 3: 1st Vs 2nd at Palm Meadows Final Series: Game 4: 1st Vs 2nd at Palm Meadows Final Series: Game 5: 1st Vs 2nd at Palm Meadows Awards Top Stats All-Star Team References Australian Baseball League (1989–1999) seasons 1990 in Australian baseball 1991 in Australian baseball