STAT-ERA-SEP -- All players in database
Regular season
| Primary |
| Name | Name | ERA |
| Paul Foytack | Rivers | 1.60 |
| Jack Sanford | Slims | 2.40 |
| Larry Jackson | Monarchs | 2.43 |
| Jack Kralick* | Surfers | 2.49 |
| Don Cardwell | Hot Rods | 2.50 |
| Ralph Terry | Fortress | 2.55 |
| Dick Hall | Bishops | 2.67 |
| Barry Latman | Lions | 2.73 |
| Bennie Daniels | Fortress | 2.85 |
| Lew Burdette | Metro Stars | 2.90 |
| Whitey Ford* | Cruisers | 2.92 |
| Bill Stafford | Slims | 2.94 |
| Frank Sullivan | Rivers | 2.94 |
| Jim Kaat* | Surfers | 2.95 |
| Camilo Pascual | Slims | 3.10 |
| Bill Monbouquette | Bishops | 3.12 |
| Mudcat Grant | Lions | 3.15 |
| Jim Bunning | Surfers | 3.25 |
| Eli Grba | Seals | 3.31 |
| Pedro Ramos | Cruisers | 3.35 |
| Gary Bell | Rivers | 3.41 |
| Art Mahaffey | Elephants | 3.42 |
| Dick Donovan | Totems | 3.45 |
| Juan Pizarro* | Surfers | 3.47 |
| Frank Lary | Fortress | 3.48 |
| Bob Friend | Elephants | 3.53 |
| John Buzhardt | Rivers | 3.56 |
| Bob Gibson | Metro Stars | 3.58 |
| Steve Barber* | Beavers | 3.59 |
| Hal Brown | Surfers | 3.60 |
| Jim Archer* | Cruisers | 3.61 |
| Sandy Koufax* | Bishops | 3.63 |
| Don Mossi* | Fortress | 3.63 |
| Ed Rakow | Hornets | 3.63 |
| Bob Purkey | Metro Stars | 3.64 |
| Billy O'Dell* | Metro Stars | 3.66 |
| Pete Burnside* | Seals | 3.77 |
| Vern Law | Lions | 3.85 |
| Tom Sturdivant | Seals | 3.86 |
| Milt Pappas | Monarchs | 3.89 |
| Don Schwall | Beavers | 3.91 |
| Juan Marichal | Cruisers | 3.93 |
| Sam Jones | Monarchs | 3.94 |
| Billy Loes | Elephants | 3.99 |
| Ernie Broglio | Elephants | 4.00 |
| Ted Bowsfield* | Seals | 4.00 |
| Joe McClain | Totems | 4.00 |
| Stan Williams | Hot Rods | 4.01 |
| Glen Hobbie | Cruisers | 4.08 |
| Jack Curtis* | Totems | 4.09 |
| Ray Sadecki* | Gladiators | 4.12 |
| Bud Daley* | Beavers | 4.12 |
| Warren Spahn* | Hornets | 4.15 |
| Jim O'Toole* | Hot Rods | 4.15 |
| Early Wynn | Fortress | 4.23 |
| Ken McBride | Totems | 4.33 |
| Cal McLish | Gladiators | 4.34 |
| Gene Conley | Gladiators | 4.37 |
| Phil Regan | Lions | 4.40 |
| Joey Jay | Gladiators | 4.42 |
| Chuck Estrada | Beavers | 4.45 |
| Don Drysdale | Monarchs | 4.49 |
| Rollie Sheldon | Slims | 4.51 |
| Curt Simmons* | Bishops | 4.58 |
| Harvey Haddix* | Hornets | 4.59 |
| Johnny Podres* | Metro Stars | 4.66 |
| Dick Ellsworth* | Gladiators | 4.74 |
| Billy Pierce* | Slims | 4.75 |
| Mike McCormick* | Elephants | 4.76 |
| Joe Gibbon* | Hot Rods | 4.88 |
| Norm Bass | Hornets | 5.04 |
| Wynn Hawkins | Lions | 5.06 |
| Jerry Walker | Monarchs | 5.08 |
| Bob Shaw | Hot Rods | 5.10 |
| Chris Short* | Monarchs | 5.23 |
| Ed Hobaugh | Seals | 5.24 |
| Art Ditmar | Lions | 5.35 |
| Frank Baumann* | Bishops | 5.40 |
| Bob Anderson | Hornets | 5.47 |
| Carl Willey | Totems | 5.57 |
| Ray Herbert | Beavers | 5.73 |
| Bob Turley | Rivers | 6.02 |
| Ken Hunt | Hornets | 6.12 |
| Joe Nuxhall* | Monarchs | 6.15 |
| Bob Buhl | Hornets | 6.24 |