| Record | ||||||||||||||||
| Year | Team Name | Owner | W | - | L | Notes | ||||||||||
| 1963 | Chicago River Dogs | Dennis van Langen | 82 | - | 80 | |||||||||||
| 1964 | " | " | 115 | - | 47 | Moved to the Eastern Division ; Defeated Washington in the EDCS ; Lost to Sacramento in the CRL Championship | ||||||||||
| 1965 | " | " | 83 | - | 79 | |||||||||||
| 1966 | " | " | 69 | - | 93 | |||||||||||
| 1967 | " | " | 54 | - | 108 | |||||||||||
| 1968 | " | " | 83 | - | 79 | |||||||||||
| 1969 | " | " | 84 | - | 78 | |||||||||||
| 1970 | " | " | 98 | - | 64 | Defeated Baltimore in the EDS ; Lost to Springfield in the EDCS | ||||||||||
| 1971 | " | Dennis van Langen/Tim Nersinger | 68 | - | 94 | Tim took over mid-season | ||||||||||
| 1972 | Spokane Web Gems | Tim Nersinger | ||||||||||||||
| 736 | - | 722 | 0.505 | |||||||||||||