STAT-ERA-SEP -- All players in database
Regular season
| Primary |
| Name | Name | ERA |
| Dwight Gooden | Corsairs | 1.59 |
| Mark Thurmond* | Vaqueros | 2.07 |
| Dave Dravecky* | Firebugs | 2.29 |
| Orel Hershiser | Plainsmen | 2.32 |
| Bud Black* | Pelicans | 2.32 |
| Bert Blyleven | Magpies | 2.39 |
| Charlie Lea | Moondogs | 2.47 |
| Bobby Ojeda* | Magpies | 2.48 |
| Doyle Alexander | Grays | 2.49 |
| Mike Flanagan* | Gnomes | 2.52 |
| Steve Trout* | Rockets | 2.54 |
| Ron Darling | Magpies | 2.61 |
| Dan Schatzeder* | Hired Guns | 2.71 |
| Phil Niekro | Legends | 2.71 |
| Don Schulze | Stars | 2.71 |
| Fernando Valenzuela* | Barons | 2.71 |
| Jack Morris | Grays | 2.74 |
| Eddie Whitson | Gnomes | 2.76 |
| Mike Mason* | Grays | 2.81 |
| Rich Dotson | Magpies | 2.82 |
| Alejandro Pena | Firebugs | 2.84 |
| Charlie Hough | 5-0's | 2.87 |
| Mike Smithson | Firebugs | 2.88 |
| Storm Davis | Canaries | 2.94 |
| Al Nipper | Inmates | 2.99 |
| Bob Knepper* | Corsairs | 3.00 |
| Milt Wilcox | Vaqueros | 3.03 |
| Mike Witt | Metropolitans | 3.05 |
| Mario Soto | Vaqueros | 3.09 |
| Rick Camp | Bison | 3.12 |
| Rick Mahler | Gnomes | 3.12 |
| Mark Langston* | Bison | 3.13 |
| John Denny | Metropolitans | 3.13 |
| Tom Seaver | Moondogs | 3.16 |
| Steve Carlton* | Hired Guns | 3.20 |
| Geoff Zahn* | Firebugs | 3.23 |
| Dennis Rasmussen* | Pelicans | 3.24 |
| Bob McClure* | Nukes | 3.25 |
| Scott Sanderson | Moondogs | 3.25 |
| Mike Scott | Stars | 3.26 |
| Dave Stieb | Zoo Crew | 3.31 |
| Roger Clemens | Sharks | 3.33 |
| Mike Moore | Magpies | 3.34 |
| Rick Honeycutt* | Canaries | 3.34 |
| Dennis Eckersley | Sharks | 3.37 |
| Danny Darwin | Sharks | 3.39 |
| Joaquin Andujar | Gnomes | 3.39 |
| Ron Romanick | Mud Hens | 3.40 |
| Nolan Ryan | Barons | 3.43 |
| Mark Gubicza | Nukes | 3.44 |
| John Butcher | Plainsmen | 3.47 |
| Juan Berenguer | Magpies | 3.48 |
| Frank Viola* | Plainsmen | 3.52 |
| Rick Sutcliffe | Rockets | 3.58 |
| Eric Show | Barons | 3.59 |
| Craig McMurtry | Nukes | 3.62 |
| Jim Beattie | Canaries | 3.63 |
| Tim Lollar* | 5-0's | 3.63 |
| Jerry Koosman* | Vaqueros | 3.64 |
| Charles Hudson | Corsairs | 3.65 |
| Steve Farr | Barons | 3.67 |
| Bob Stoddard | Inmates | 3.71 |
| Frank Tanana* | Rockets | 3.71 |
| Don Sutton | Moondogs | 3.72 |
| Shane Rawley* | Grays | 3.79 |
| Dick Ruthven | Pelicans | 3.79 |
| Bob Welch | Legends | 3.80 |
| Larry McWilliams* | Mud Hens | 3.80 |
| Pascual Perez | Vaqueros | 3.80 |
| Bill Gullickson | Inmates | 3.81 |
| Danny Cox | Legends | 3.81 |
| Jeff Russell | Missions | 3.86 |
| Bret Saberhagen | Firebugs | 3.87 |
| Mark Davis* | Sharks | 3.88 |
| Bill Laskey | Missions | 3.89 |
| Ken Schrom | Plainsmen | 3.91 |
| Mike Boddicker | Hired Guns | 3.91 |
| Dennis Boyd | Moondogs | 3.91 |
| Bruce Hurst* | Stars | 3.93 |
| Jaime Cocanower | Firebugs | 3.96 |
| Floyd Bannister* | Metropolitans | 3.98 |
| Lary Sorensen | Pelicans | 3.99 |
| Bryn Smith | Sharks | 4.00 |
| Jose DeLeon | Metropolitans | 4.00 |
| John Tudor* | Gnomes | 4.05 |
| John Candelaria* | Bison | 4.05 |
| Jeff Robinson | 5-0's | 4.08 |
| Walt Terrell | Inmates | 4.10 |
| Luis Leal | Canaries | 4.13 |
| Joe Niekro | Legends | 4.15 |
| Bruce Kison | Stars | 4.17 |
| Rick Rhoden | Metropolitans | 4.18 |
| Burt Hooton | Plainsmen | 4.20 |
| Moose Haas | Bison | 4.25 |
| Joe Price* | Mud Hens | 4.27 |
| Bill Krueger* | Pelicans | 4.32 |
| Neal Heaton* | Missions | 4.46 |
| Matt Young* | Mud Hens | 4.49 |
| Salome Barojas | Missions | 4.51 |
| Ray Burris | Nukes | 4.53 |
| Mike Caldwell* | Plainsmen | 4.61 |
| Mike Krukow | Zoo Crew | 4.62 |
| Scott McGregor* | Corsairs | 4.63 |
| Jim Slaton | Inmates | 4.65 |
| Bruce Berenyi | 5-0's | 4.73 |
| Tommy John* | Zoo Crew | 4.75 |
| Dennis Martinez | Stars | 4.79 |
| Charlie Leibrandt* | Rockets | 4.80 |
| Dan Petry | 5-0's | 4.97 |
| Andy Hawkins | Bison | 5.02 |
| Dave LaPoint* | Legends | 5.02 |
| Steve Comer | Missions | 5.17 |
| Larry Gura* | Barons | 5.25 |
| Dave Stewart | Hired Guns | 5.32 |
| Jim Clancy | Rockets | 5.33 |
| Len Barker | Mud Hens | 5.37 |
| Ed Lynch | Zoo Crew | 5.53 |
| Kevin Gross | Hired Guns | 5.59 |