Portland Blue Sox
Most wins in a season: 39 in 1907
Most losses in a season: 41 in 1907
|1907||Portland Blue Sox||Maine State League||39||41||Roster||Stats|
|1908||Portland Blue Sox||Maine State League||32||20||Roster||Stats|
|1908||Portland Blue Sox||Atlantic Association||8||3||Roster||Stats|
|1919||Portland Blue Sox||New England League||38||27||Roster||Stats|
Average attendance is based upon the number of actual home dates where known (most leagues from 1992 and later). Where the number of home dates is not known, the average is calculated using half the team's total games.