Below are the all-time pitching leaders for the Illowa APBA League from 1975 through the 2017 season.
You can see the all-time IAL hitting leaders here.
Earned Run Average
| Player | ERA |
|---|
| Clayton Kershaw | 2.90 |
| Mariano Rivera | 2.90 |
| Billy Wagner | 2.98 |
| Catfish Hunter | 3.11 |
| Rollie Fingers | 3.25 |
| Dave Smith | 3.25 |
| Adam Wainwright | 3.29 |
| Madison Bumgarner | 3.31 |
| Jered Weaver | 3.40 |
| Chris Sale | 3.44 |
| Player | YEAR | CLUB | ERA |
|---|
| Roger Clemens | 2006 | Highlanders | 1.66 |
| Steve Carlton | 1982 | Cardinals | 1.69 |
| Alex Wood | 2015 | Hitmen | 1.86 |
| Andy Pettitte | 2006 | Upperdeckers | 1.86 |
| Joe Magrane | 1989 | Bombers | 1.91 |
| Catfish Hunter | 1975 | Thunderchickens | 1.91 |
| Jacob deGrom | 2016 | Kernels | 1.93 |
| Jim Palmer | 1976 | Dazzle | 1.93 |
| Greg Maddux | 1993 | Champions | 1.96 |
| Adam Wainwright | 2011 | Marauders | 1.96 |
Wins
| Player | Wins |
|---|
| Greg Maddux | 354 |
| Roger Clemens | 314 |
| John Smoltz | 247 |
| Tom Glavine | 247 |
| Orel Hershiser | 220 |
| Livan Hernandez | 220 |
| Steve Carlton | 214 |
| Kevin Brown | 206 |
| Mike Mussina | 204 |
| Pedro Martinez | 200 |
| Player | YEAR | CLUB | Wins |
|---|
| Andy Messersmith | 1976 | Rocket Fire | 27 |
| Kevin Brown | 1998 | Gamblers | 26 |
| Steve Carlton | 1982 | Cardinals | 24 |
| Kevin Brown | 1999 | Gamblers | 24 |
| John Smoltz | 1997 | Hitmen | 24 |
| Steve Carlton | 1978 | Cardinals | 24 |
| Steve Carlton | 1979 | Cardinals | 24 |
| Wei-Yin Chen | 2015 | Oinkers | 24 |
| Greg Maddux | 1995 | Champions | 23 |
| Orel Hershiser | 1990 | Champions | 23 |
| Orel Hershiser | 1988 | Champions | 23 |
| Dennis Leonard | 1979 | Champions | 23 |
Strikeouts
| Player | K |
|---|
| Roger Clemens | 4449 |
| Greg Maddux | 3925 |
| John Smoltz | 2873 |
| Mike Mussina | 2870 |
| Tom Glavine | 2797 |
| Pedro Martinez | 2767 |
| Kevin Brown | 2541 |
| Steve Carlton | 2506 |
| A.J. Burnett | 2479 |
| Livan Hernandez | 2381 |
| Player | YEAR | CLUB | K |
|---|
| Roger Clemens | 1998 | Gamblers | 304 |
| Max Scherzer | 2017 | Upperdeckers | 299 |
| Steve Carlton | 1981 | Cardinals | 294 |
| Doc Gooden | 1986 | 12 Trees | 293 |
| Greg Maddux | 1995 | Champions | 289 |
| Chris Bosio | 1988 | Phoenix | 287 |
| Ed Whitson | 1988 | Phoenix | 278 |
| Pedro Martinez | 1998 | Hitmen | 273 |
| David Price | 2015 | Bombers | 271 |
| Roger Clemens | 1999 | Gamblers | 267 |
Saves
| Player | Saves |
|---|
| Mariano Rivera | 461 |
| Francisco Rodriguez | 379 |
| Billy Wagner | 307 |
| Doug Jones | 246 |
| Dennis Eckersley | 208 |
| Troy Percival | 185 |
| Brad Ziegler | 181 |
| Aroldis Chapman | 158 |
| Lee Smith | 153 |
| Tom Henke | 152 |
| Player | YEAR | CLUB | Saves |
|---|
| Bryan Harvey | 1992 | Cardinals | 55 |
| Bobby Thigpen | 1991 | Champions | 53 |
| Doug Jones | 1993 | Hitmen | 51 |
| Billy Koch | 2001 | Cardinals | 50 |
| Francisco Rodriguez | 2011 | Upperdeckers | 49 |
| Jesse Orosco | 1990 | Cardinals | 46 |
| Bryan Harvey | 1994 | Cardinals | 45 |
| Drew Storen | 2015 | Oinkers | 45 |
| Mariano Rivera | 2002 | Gamblers | 44 |
| Jeff Nelson | 1996 | Bombers | 44 |
| Chad Cordero | 2006 | Gamblers | 44 |
| Andrew Bailey | 2010 | Kernels | 44 |
Innings Pitched
| Player | IP |
|---|
| Greg Maddux | 5086 1/3 |
| Roger Clemens | 4894 2/3 |
| Tom Glavine | 4231 2/3 |
| Livan Hernandez | 3655 2/3 |
| John Smoltz | 3439 2/3 |
| Mike Mussina | 3428 2/3 |
| Kevin Brown | 3285 1/3 |
| Steve Carlton | 3132 1/3 |
| Mark Buehrle | 3125 |
| Tim Hudson | 3107 |
| Player | YEAR | CLUB | IP |
|---|
| Livan Hernandez | 2009 | Bombers | 354 1/3 |
| Brad Penny | 2012 | Hitmen | 352 |
| Scott Olsen | 2008 | Thunderchickens | 350 |
| Ed Whitson | 1988 | Phoenix | 349 1/3 |
| Brett Myers | 2005 | Champions | 338 1/3 |
| Ferguson Jenkins | 1984 | Thunderchickens | 333 2/3 |
| Erik Hanson | 1997 | Cardinals | 328 2/3 |
| Catfish Hunter | 1976 | Thunderchickens | 328 |
| Livan Hernandez | 2010 | Bombers | 322 2/3 |
| Steve Trout | 1987 | Phoenix | 322 |
Complete Games
| Player | CG |
|---|
| Greg Maddux | 193 |
| Roger Clemens | 183 |
| Steve Carlton | 167 |
| Tom Glavine | 148 |
| Livan Hernandez | 145 |
| Don Sutton | 142 |
| Phil Niekro | 133 |
| Jim Palmer | 126 |
| Ferguson Jenkins | 117 |
| Kevin Brown | 110 |
| Player | YEAR | CLUB | CG |
|---|
| Ferguson Jenkins | 1975 | Rocket Fire | 28 |
| Jim Palmer | 1976 | Dazzle | 27 |
| Steve Carlton | 1981 | Cardinals | 26 |
| Ken Holtzman | 1975 | Cardinals | 26 |
| Jim Palmer | 1978 | Cardinals | 26 |
| Andy Messersmith | 1976 | Rocket Fire | 25 |
| Bert Blyleven | 1977 | Fire | 25 |
| Catfish Hunter | 1976 | Thunderchickens | 24 |
| Andy Messersmith | 1975 | Rocket Fire | 24 |
| Mike Witt | 1987 | Mercenaries | 24 |
Shutouts
| Player | Shutouts |
|---|
| Greg Maddux | 63 |
| Steve Carlton | 39 |
| Tom Glavine | 36 |
| Roger Clemens | 35 |
| Bob Knepper | 34 |
| Kevin Brown | 30 |
| Mark Buehrle | 29 |
| Vida Blue | 28 |
| Phil Niekro | 27 |
| Jim Palmer | 27 |
| Orel Hershiser | 27 |
| Player | YEAR | CLUB | Shutouts |
|---|
| Bob Knepper | 1979 | Cardinals | 9 |
| Greg Maddux | 1993 | Champions | 8 |
| Orel Hershiser | 1990 | Champions | 8 |
| Max Scherzer | 2017 | Upperdeckers | 8 |
| Fernando Valenzuela | 1982 | Cardinals | 8 |
| Greg Maddux | 1994 | Champions | 7 |
| C.C. Sabathia | 2009 | Gamblers | 7 |
| Chris Bosio | 1993 | Phoenix | 7 |
| Jim Palmer | 1979 | Cardinals | 7 |
| Jim Lonborg | 1975 | Thunderchickens | 7 |
Walks allowed
| Player | Walks |
|---|
| Roger Clemens | 1850 |
| Tom Glavine | 1512 |
| Greg Maddux | 1271 |
| Livan Hernandez | 1256 |
| Steve Carlton | 1242 |
| John Smoltz | 1181 |
| A.J. Burnett | 1118 |
| Mike Mussina | 1097 |
| Kevin Brown | 1090 |
| Fernando Valenzuela | 1073 |
| Player | YEAR | CLUB | Walks |
|---|
| Scott Olsen | 2008 | Thunderchickens | 213 |
| Francisco Liriano | 2010 | Bombers | 171 |
| Manny Parra | 2010 | Thunderchickens | 169 |
| Vida Blue | 1976 | Bombers | 155 |
| Carlos Zambrano | 2008 | Bombers | 151 |
| Erik Hanson | 1997 | Cardinals | 148 |
| Dontrelle Willis | 2008 | Gamblers | 148 |
| Barry Zito | 2007 | Upperdeckers | 146 |
| Chan Ho Park | 2001 | Champions | 144 |
| Brad Penny | 2012 | Hitmen | 138 |
Losses
| Player | Losses |
|---|
| Roger Clemens | 242 |
| Greg Maddux | 232 |
| Tom Glavine | 202 |
| Livan Hernandez | 192 |
| Dennis Eckersley | 183 |
| Mike Mussina | 180 |
| Don Sutton | 179 |
| Jamie Moyer | 179 |
| Mark Buehrle | 173 |
| A.J. Burnett | 171 |
| Player | YEAR | CLUB | Losses |
|---|
| Erik Hanson | 1997 | Cardinals | 29 |
| Ed Whitson | 1988 | Phoenix | 28 |
| Livan Hernandez | 2010 | Bombers | 26 |
| Jose Rijo | 1987 | Phoenix | 25 |
| Bob Knepper | 1981 | A’s | 25 |
| Brad Penny | 2012 | Hitmen | 25 |
| Rodrigo Lopez | 2004 | Gamblers | 25 |
| Chris Bosio | 1988 | Phoenix | 24 |
| Ferguson Jenkins | 1984 | Thunderchickens | 24 |
| LaMarr Hoyt | 1985 | Mercenaries | 24 |
Games Started
| Player | GS |
|---|
| Greg Maddux | 749 |
| Roger Clemens | 699 |
| Tom Glavine | 582 |
| Mike Mussina | 499 |
| Livan Hernandez | 465 |
| Tim Hudson | 463 |
| Andy Pettitte | 458 |
| Orel Hershiser | 456 |
| John Smoltz | 451 |
| Kevin Brown | 447 |
| Player | YEAR | CLUB | GS |
|---|
| Luis Leal | 1984 | Janitors | 46 |
| Phil Niekro | 1980 | Rocket Fire | 44 |
| Chris Bosio | 1988 | Phoenix | 42 |
| Bruce Ruffin | 1988 | 12 Trees | 42 |
| Ray Fontenot | 1986 | Champions | 42 |
| Bruce Ruffin | 1991 | 12 Trees | 42 |
| Erik Hanson | 1997 | Cardinals | 42 |
| Danny Patterson | 2000 | Bombers | 42 |
| Livan Hernandez | 2000 | Bombers | 42 |
| Rolando Arrojo | 2000 | Sluggers | 42 |
| Phil Niekro | 1979 | Rocket Fire | 42 |
| Fernando Valenzuela | 1991 | Cardinals | 42 |
| Storm Davis | 1988 | Champions | 42 |
| Bob Knepper | 1981 | A’s | 42 |
| Greg Maddux | 1988 | Champions | 42 |
Appearances
| Player | Appearances |
|---|
| Dennis Eckersley | 1065 |
| Jesse Orosco | 996 |
| Dan Plesac | 888 |
| Roberto Hernandez | 885 |
| Francisco Rodriguez | 845 |
| Mariano Rivera | 817 |
| Billy Wagner | 782 |
| Lee Smith | 757 |
| Craig Lefferts | 756 |
| Jeff Reardon | 752 |
| Player | YEAR | CLUB | Appearances |
|---|
| Dick Drago | 1982 | Hitmen | 104 |
| Jesse Orosco | 1988 | Cardinals | 98 |
| John Doherty | 1996 | Highlanders | 94 |
| Bill Dawley | 1988 | Mercenaries | 89 |
| Brad Lidge | 2010 | Marauders | 88 |
| Mark Clear | 1988 | Bombers | 87 |
| Storm Davis | 1992 | Champions | 87 |
| Mark Eichhorn | 1988 | Cardinals | 87 |
| Kevin Jepsen | 2010 | Marauders | 87 |
| Matt Karchner | 1997 | Hitmen | 87 |
