 For a few seasons in the 1960s and 1970s, no playoffs were held and the league champions were simply the regular season pennant winners.Most seasons, however, have ended with playoffs to determine a league champion.The Oneonta Tigers have won 12 championships, the most among all teams in the league, followed by the Auburn Mets/Twins/Phillies/Doubledays (8) and the Jamestown Falcons/Expos (7).