| Stat | Record | Year | Player | % Correct |
|---|---|---|---|---|
| Fastest Pitch | 105.8 MPH | 2010 | Aroldis Chapman | 88%
|
| Shutouts (SHO) | 16 | 18761916 | George BradleyPete Alexander | 25%
|
| Walks plus Hits per Innings Pitched (WHIP) | .6176 | 1944 | Hilton Smith | 25%
|
| Saves (S) | 62 | 2008 | Francisco Rodríguez | 13%
|
| Wins (W) | 60 | 1884 | Old Hoss Radbourn | 13%
|
| Win Percentage (WPCT) | 94.7% | 1959 | Roy Face | 13%
|
| Innings Pitched (IP) | 680 | 1879 | Will White | 13%
|
| Complete Games (CG) | 75 | 1879 | Will White | 13%
|
| Earned Run Average (ERA) | .711 | 1937 | Eugene Bremer | 0%
|
| Losses (L) | 48 | 1883 | John Coleman | 0%
|
| Hits Allowed | 772 | 1883 | John Coleman | 0%
|
| Earned Runs Allowed | 291 | 1883 | John Coleman | 0%
|
| Strikeouts (K) | 513 | 1886 | Matt Kilroy | 0%
|