STAT-ERA-wk15 -- All players in database
Regular season
| Primary |
| Name | Name | ERA |
| Turk Farrell | Colt 45's | 1.52 |
| Ron Kline | Mets | 2.31 |
| Ken Johnson | Mets | 2.32 |
| Bob Veale* | Lightning | 2.35 |
| Bob Heffner | Bears | 2.37 |
| Jim O'Toole* | Tourists | 2.37 |
| Wally Bunker | Lightning | 2.58 |
| Jim Kaat* | Lightning | 2.69 |
| Jim Maloney | Tarheels | 2.71 |
| Juan Marichal | Tarheels | 2.73 |
| Larry Jackson | Black Cats | 2.77 |
| Sam McDowell* | Bears | 2.87 |
| Don Drysdale | Lightning | 2.89 |
| Roger Craig | Colt 45's | 2.90 |
| Bob Gibson | Lightning | 2.94 |
| Pedro Ramos | Frigates | 2.98 |
| Sandy Koufax* | Tarheels | 3.00 |
| Bob Bruce | Colt 45's | 3.03 |
| Lew Burdette | Mets | 3.05 |
| Steve Ridzik | Argonauts | 3.06 |
| Bob Friend | Black Cats | 3.06 |
| Dean Chance | Bombers | 3.07 |
| Bo Belinsky* | Jakes | 3.13 |
| Jim Duffalo | Tarheels | 3.15 |
| Whitey Ford* | Mets | 3.18 |
| Bennie Daniels | Rockets | 3.27 |
| Tony Cloninger | Black Cats | 3.28 |
| Chris Short* | Rockets | 3.34 |
| Milt Pappas | Tourists | 3.37 |
| Joe Horlen | Colt 45's | 3.47 |
| Jack Sanford | Tigers | 3.48 |
| Bob Purkey | Frigates | 3.50 |
| Dave McNally* | Bears | 3.53 |
| Dick Ellsworth* | Argonauts | 3.54 |
| Robin Roberts | Bears | 3.62 |
| Mickey Lolich* | Argonauts | 3.64 |
| Al Jackson* | Tigers | 3.65 |
| Fred Newman | | 3.66 |
| Jim Bunning | Frigates | 3.67 |
| Barry Latman | Rockets | 3.72 |
| Curt Simmons* | | 3.73 |
| Gaylord Perry | Grays | 3.74 |
| Dave Wickersham | Rockets | 3.79 |
| Dick Donovan | Jakes | 3.80 |
| Luis Tiant | Bullies | 3.84 |
| Camilo Pascual | Ahabs | 3.86 |
| Ray Herbert | Ahabs | 3.86 |
| Tracy Stallard | Grays | 3.88 |
| Dick Radatz | Ahabs | 3.88 |
| Ron Herbel | Mets | 3.94 |
| Jim Bouton | Tourists | 3.95 |
| Ray Sadecki* | Bears | 3.96 |
| Galen Cisco | Grays | 4.01 |
| Vern Law | Bombers | 4.10 |
| Earl Wilson | Ahabs | 4.18 |
| Bobby Bolin | Tourists | 4.21 |
| Jim Grant | Colt 45's | 4.42 |
| Ernie Broglio | Tourists | 4.52 |
| Buster Narum | Rockets | 4.62 |
| Ray Culp | Frigates | 4.66 |
| John Buzhardt | Jakes | 4.71 |
| Joey Jay | Grays | 4.71 |
| Rollie Sheldon | Bullies | 4.75 |
| Sonny Siebert | Colt 45's | 4.83 |
| Hank Aguirre* | Bears | 4.84 |
| Bob Shaw | Bombers | 4.92 |
| Diego Segui | Ahabs | 4.95 |
| Joe Nuxhall* | Bullies | 5.06 |
| Al Downing* | Colt 45's | 5.10 |
| Bob Buhl | Tigers | 5.14 |
| Juan Pizarro* | Colt 45's | 5.23 |
| John Tsitouris | Grays | 5.24 |
| Bill Monbouquette | Frigates | 5.27 |
| Joe Moeller | Tigers | 5.27 |
| Moe Drabowsky | Jakes | 5.30 |
| Denny Lemaster* | Rockets | 5.44 |
| Orlando Pena | Mets | 5.49 |
| Bob Sadowski | Tigers | 5.54 |
| Dave Morehead | Bullies | 5.63 |
| Hank Fischer | Black Cats | 5.66 |
| Lee Stange | Tigers | 5.71 |
| Gary Peters* | Tarheels | 5.75 |
| Jack Kralick* | Argonauts | 5.87 |
| Dennis Bennett* | Argonauts | 5.97 |
| Jim Hannan | Bullies | 6.19 |
| Art Mahaffey | Bombers | 6.24 |
| Alan Koch | Jakes | 6.30 |
| Claude Osteen* | Bombers | 6.39 |
| Dick Stigman* | Bombers | 6.79 |
| Jack Fisher | Argonauts | 6.80 |
| Warren Spahn* | | 8.44 |