STAT-ERA-SEP -- All players in database
Regular season
| Primary |
| Name | Name | ERA |
| Mark Leiter | Phantoms | 1.74 |
| Jaime Navarro | Cyclones | 1.98 |
| Bill Swift | Bridegrooms | 2.06 |
| Roger Clemens | Cyclones | 2.13 |
| Greg Maddux | Red Sox | 2.18 |
| Curt Schilling | Zephyrs | 2.19 |
| Mark Clark | Phantoms | 2.37 |
| Ron Darling | Salamanders | 2.39 |
| Bob Tewksbury | Islanders | 2.41 |
| Mike Boddicker | Vultures | 2.42 |
| Frank Viola* | Redbirds | 2.48 |
| Charles Nagy | Cows | 2.48 |
| Jack McDowell | Islanders | 2.60 |
| Dennis Martinez | Rivers | 2.64 |
| Julio Valera | Salamanders | 2.66 |
| Mike Mussina | Cows | 2.66 |
| Danny Darwin | SkySox | 2.70 |
| Doug Drabek | Hedgehogs | 2.72 |
| Mark Langston* | Hedgehogs | 2.77 |
| Kevin Gross | Zephyrs | 2.80 |
| Frank Seminara | MicroMets | 2.82 |
| Mike Morgan | Zephyrs | 2.82 |
| David Cone | Rough Riders | 2.82 |
| Juan Guzman | Islanders | 2.84 |
| Mark Gubicza | Dukes | 2.89 |
| Charlie Leibrandt* | Leopards | 2.90 |
| John Smoltz | MicroMets | 2.92 |
| Jose DeLeon | Q's | 2.93 |
| Kevin Appier | Zephyrs | 2.94 |
| Bruce Hurst* | Salamanders | 2.95 |
| Dwight Gooden | Storm | 2.95 |
| Kevin Tapani | MicroMets | 2.96 |
| Tom Glavine* | Bridegrooms | 3.00 |
| Erik Hanson | Q's | 3.01 |
| Brian Barnes* | Vultures | 3.03 |
| Ken Hill | Dukes | 3.05 |
| Kevin Brown | Lighthouse | 3.09 |
| Melido Perez | Dukes | 3.13 |
| Andy Benes | Rough Riders | 3.17 |
| Ramon Martinez | MicroMets | 3.21 |
| Frank Castillo | Dukes | 3.23 |
| Scott Sanderson | SkySox | 3.29 |
| Alex Fernandez | Rough Riders | 3.33 |
| Danny Cox | Storm | 3.37 |
| John Smiley* | MicroMets | 3.42 |
| Tim Belcher | Hedgehogs | 3.42 |
| Dave Fleming* | Hot Dogs | 3.44 |
| Ben McDonald | Phantoms | 3.46 |
| Danny Jackson* | Red Sox | 3.47 |
| Randy Tomlin* | Cyclones | 3.47 |
| Bert Blyleven | Boxers | 3.50 |
| Don Robinson | Redbirds | 3.50 |
| John Burkett | Hedgehogs | 3.51 |
| Zane Smith* | SkySox | 3.51 |
| Jimmy Key* | Hedgehogs | 3.52 |
| Bob Welch | SkySox | 3.53 |
| Trevor Wilson* | Buckeyes | 3.55 |
| Chris Bosio | Leopards | 3.55 |
| Bob Walk | Hot Dogs | 3.63 |
| Todd Stottlemyre | Buckeyes | 3.65 |
| Greg W. Harris | Redbirds | 3.68 |
| Charlie Hough | Hot Dogs | 3.69 |
| Scott Kamieniecki | Q's | 3.72 |
| Omar Olivares | Phantoms | 3.72 |
| Rick Sutcliffe | SkySox | 3.75 |
| Jack Morris | Storm | 3.76 |
| Rick Reed | Cows | 3.78 |
| Bill Wegman | Lighthouse | 3.78 |
| Chris Hammond* | Phantoms | 3.79 |
| Hipolito Pichardo | Bridegrooms | 3.79 |
| Mark Gardner | Buckeyes | 3.80 |
| Jose Rijo | Q's | 3.81 |
| Jim Bullinger | Vultures | 3.86 |
| Bill Gullickson | Hot Dogs | 3.90 |
| Tom Candiotti | Bridegrooms | 3.95 |
| Bobby Ojeda* | Vultures | 3.97 |
| David Wells* | Buckeyes | 3.98 |
| Scott Erickson | Dreadnoughts | 3.98 |
| Chuck Finley* | Leopards | 3.98 |
| Dave Stewart | Salamanders | 4.02 |
| Bill Krueger* | Islanders | 4.02 |
| Orel Hershiser | Boxers | 4.09 |
| Pete Harnisch | Redbirds | 4.11 |
| Donovan Osborne* | Rivers | 4.14 |
| Terry Mulholland* | Lighthouse | 4.16 |
| Mike Moore | Cyclones | 4.17 |
| John Dopson | SkySox | 4.17 |
| Randy Johnson* | Red Sox | 4.18 |
| Bobby Witt | Dreadnoughts | 4.19 |
| Steve Avery* | Rivers | 4.19 |
| Scott Scudder | Vultures | 4.21 |
| Jose Guzman | Lighthouse | 4.23 |
| Jimmy Jones | Rivers | 4.26 |
| Greg Swindell* | Boxers | 4.28 |
| Frank Tanana* | Redbirds | 4.34 |
| Kelly Downs | Q's | 4.34 |
| Sid Fernandez* | Boxers | 4.35 |
| Jim Abbott* | Lighthouse | 4.37 |
| Dave Stieb | Dukes | 4.40 |
| Craig Lefferts* | Red Sox | 4.44 |
| Darryl Kile | Leopards | 4.52 |
| Dennis Cook* | Bridegrooms | 4.60 |
| Greg Hibbard* | Hot Dogs | 4.64 |
| Jose Mesa | Cows | 4.78 |
| Rheal Cormier* | Cows | 4.80 |
| Wilson Alvarez* | Rough Riders | 4.84 |
| Bud Black* | Dreadnoughts | 4.91 |
| Shawn Boskie | Phantoms | 4.97 |
| Nolan Ryan | Red Sox | 5.08 |
| Butch Henry* | Storm | 5.27 |
| Chris Nabholz* | Dreadnoughts | 5.34 |
| Chris Haney* | Boxers | 6.63 |