Digital Diamond Baseball Report: 1965-69--HBRetro-Originals-Pitching-Leaders
League Pitching Leaders - [ERA] (IP at least 1000)
| Player | ERA |
| Bob Gibson-68 | 2.10 |
| Vicente Romo-68 | 2.32 |
| Luis Tiant-68 | 2.40 |
| Juan Marichal-66 | 2.58 |
| Larry Dierker-69 | 2.62 |
League Pitching Leaders - [IP]
| Player | IP |
| Juan Marichal-66 | 2411 |
| Mel Stottlemyre Sr-69 | 2207 |
| John E O'Donoghue-67 | 2184 |
| Bill Hands-69 | 2128 |
| Sandy Koufax-66 | 2122 |
League Pitching Leaders - [W]
| Player | W |
| Juan Marichal-66 | 177 |
| Bill Hands-69 | 155 |
| Jim Bunning-66 | 144 |
| Mel Stottlemyre Sr-69 | 140 |
| Denny McLain-68 | 139 |
League Pitching Leaders - [CG]
| Player | CG |
| Bob Gibson-68 | 102 |
| Denny McLain-68 | 87 |
| Mel Stottlemyre Sr-69 | 76 |
| Juan Marichal-66 | 72 |
| Sandy Koufax-66 | 66 |
League Pitching Leaders - [SV]
| Player | SV |
| Eddie Fisher-65 | 422 |
| Bob Locker-67 | 407 |
| Hoyt Wilhelm-65 | 407 |
| Larry Sherry-66 | 385 |
| Phil Regan-66 | 378 |
League Pitching Leaders - [SO]
| Player | SO |
| Sandy Koufax-66 | 2004 |
| Nolan Ryan-69 | 1722 |
| Dennis Higgins-66 | 1682 |
| Juan Marichal-66 | 1653 |
| Bob Gibson-68 | 1618 |
League Pitching Leaders - [HR]
| Player | HR |
| Juan Marichal-66 | 293 |
| Bob Hendley+-66 | 248 |
| Earl Wilson-66 | 234 |
| Bob Buhl-65 | 232 |
| Denny McLain-68 | 230 |
League Pitching Leaders - [H9] (IP at least 1000)
| Player | H9 |
| Vicente Romo-68 | 5.79 |
| Luis Tiant-68 | 6.50 |
| Dave McNally-68 | 6.94 |
| Bob Gibson-68 | 7.10 |
| Dennis Higgins-66 | 7.28 |
League Pitching Leaders - [SO9] (IP at least 1000)
| Player | SO9 |
| Sam McDowell-65 | 10.00 |
| Masanori Murakami-65 | 9.68 |
| Tom Griffin-69 | 9.33 |
| Tug McGraw-69 | 8.96 |
| Bob Moose-69 | 8.63 |
League Pitching Leaders - [BB9] (IP at least 1000)
| Player | BB9 |
| Juan Marichal-66 | 1.33 |
| Bill Monbouquette-67 | 1.84 |
| Phil Niekro-69 | 1.90 |
| Vern Law-65 | 1.94 |
| Ralph Terry-65 | 1.97 |