The Mutual Base Ball Club of New York was a leading American baseball club almost throughout its 20-year history. It was established during 1857, the year of the first baseball convention, just too late to be a founding member of the National Association of Base Ball Players.
| Team | Year | League | Wins | Losses | Ties | W/L% | GB |
|---|---|---|---|---|---|---|---|
| New York Mutuals | 1875 | NA | 30 | 38 | 3 | 0.441 | - |
| New York Mutuals | 1874 | NA | 42 | 23 | 0 | 0.646 | - |
| New York Mutuals | 1873 | NA | 29 | 24 | 0 | 0.547 | - |
| New York Mutuals | 1872 | NA | 34 | 20 | 2 | 0.630 | - |
| New York Mutuals | 1871 | NA | 16 | 17 | 0 | 0.485 | - |
