Most wins in a season: 39 in 1886
Most losses in a season: 41 in 1886
|1885||Leadville Blues||Colorado State League||7||13||Roster||Stats|
|1886||Leadville Blues||Western League||39||41||Roster||Stats|
|1889||Leadville Blues||Colorado State League||19||31||Roster||Stats|
|1898||Leadville Blues||Colorado State League||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.