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| Career Losses Leaderboard | |
| * - Indicates Hall of Fame |
| Rank | Player | Losses | IP | Last Year | Single Season Leaderboard |
| 1. | John Seely | 21 | 185.0 | 2000 | |
| 2. | Joseph Seybert | 20 | 189.3 | 2000 | |
| 3. | Thomas Waxman | 18 | 218.0 | 2000 | |
| 4. | Roy Lozano | 17 | 167.3 | 2000 | |
| 5. | Sean Mullet | 16 | 219.0 | 2000 | |
| Alan Yelverton | 16 | 210.7 | 2000 | ||
| Timothy Buser | 16 | 210.3 | 2000 | ||
| Lee Jarboe | 16 | 86.7 | 2000 | ||
| 9. | Sunny Bell | 15 | 245.0 | 2000 | |
| Gregory Hart | 15 | 219.0 | 2000 | ||
| Joe Phillips | 15 | 201.7 | 2000 | ||
| Mario Kendrick | 15 | 140.7 | 2000 | ||
| 13. | Sammie Roberts | 14 | 258.3 | 2000 | |
| Miguel Villalobos | 14 | 236.7 | 2000 | ||
| Kenneth Eshleman | 14 | 236.3 | 2000 | ||
| Richard Eaker | 14 | 229.7 | 2000 | ||
| Anthony Pilon | 14 | 221.7 | 2000 | ||
| Kelvin Palen | 14 | 218.7 | 2000 | ||
| Nick Weathers | 14 | 217.7 | 2000 | ||
| Ron Yarbrough | 14 | 207.7 | 2000 | ||
| Angelo Ambriz | 14 | 161.7 | 2000 | ||
| 22. | Brian Valero | 13 | 252.7 | 2000 | |
| Gerald Johnson | 13 | 249.0 | 2000 | ||
| Taira Korekiyo | 13 | 229.7 | 2000 | ||
| Asa Madruga | 13 | 221.3 | 2000 | ||
| Murray Abbey | 13 | 212.3 | 2000 | ||
| Robert Dwyer | 13 | 206.0 | 2000 | ||
| Robert Ford | 13 | 205.0 | 2000 | ||
| Wilton Nickle | 13 | 198.7 | 2000 | ||
| Mohammad Parker | 13 | 194.7 | 2000 | ||
| Steffen Conerly | 13 | 190.7 | 2000 | ||
| Leonel More | 13 | 163.0 | 2000 | ||
| Matthew Roten | 13 | 157.0 | 2000 | ||
| Arlie Rodriguez | 13 | 122.0 | 2000 | ||
| 35. | Richard Hirsh | 12 | 254.0 | 2000 | |
| Armand Banuelos | 12 | 247.3 | 2000 | ||
| Paul Harrington | 12 | 237.0 | 2000 | ||
| Dan Entrekin | 12 | 234.7 | 2000 | ||
| Dustin Carrasquillo | 12 | 234.3 | 2000 | ||
| James Pineda | 12 | 211.7 | 2000 | ||
| Darius Glover | 12 | 207.0 | 2000 | ||
| Ronnie Owens | 12 | 203.0 | 2000 | ||
| Justin Calvillo | 12 | 186.7 | 2000 | ||
| James Klein | 12 | 185.0 | 2000 | ||
| Cecil Dowd | 12 | 175.7 | 2000 | ||
| Albert Olmos | 12 | 171.3 | 2000 | ||
| William Piccolo | 12 | 168.3 | 2000 | ||
| 48. | Nick Flowers | 11 | 235.7 | 2000 | |
| Malik Meng | 11 | 235.7 | 2000 | ||
| Pedro Ceasar | 11 | 226.3 | 2000 | ||
| Freddy Estrada | 11 | 211.0 | 2000 | ||
| Harry Swint | 11 | 202.3 | 2000 | ||
| Deangelo Rodarte | 11 | 200.7 | 2000 | ||
| Brian Riojas | 11 | 185.0 | 2000 | ||
| Nicholas Desantiago | 11 | 161.0 | 2000 | ||
| Ferdinand Lueras | 11 | 159.3 | 2000 | ||
| Thomas Paz | 11 | 153.0 | 2000 | ||
| Peter Reynolds | 11 | 90.7 | 2000 | ||
| 59. | Jeeves Van Hooten | 10 | 237.7 | 2000 | |
| Alfonzo Cortez | 10 | 224.0 | 2000 | ||
| Jose Valdovinos | 10 | 220.3 | 2000 | ||
| Samuel Grijalva | 10 | 212.0 | 2000 | ||
| Marvin Arnott | 10 | 206.3 | 2000 | ||
| Santos Quinonez | 10 | 196.0 | 2000 | ||
| Jose Garcia | 10 | 193.3 | 2000 | ||
| Anthony Frey | 10 | 189.3 | 2000 | ||
| Eric Song | 10 | 183.3 | 2000 | ||
| Beau Fletcher | 10 | 157.7 | 2000 | ||
| Joe Adams | 10 | 148.3 | 2000 | ||
| Samual Latta | 10 | 135.3 | 2000 | ||
| Victor Boyd | 10 | 122.0 | 2000 | ||
| Robert Dolin | 10 | 80.0 | 2000 | ||
| 73. | Jeffrey Cargo | 9 | 244.3 | 2000 | |
| Thomas Showers | 9 | 240.3 | 2000 | ||
| Christopher Kearns | 9 | 231.7 | 2000 | ||
| Keenan Brochu | 9 | 224.3 | 2000 | ||
| Francis Domenico | 9 | 200.3 | 2000 | ||
| Clemente Carrero | 9 | 191.3 | 2000 | ||
| Alfred Raskin | 9 | 185.7 | 2000 | ||
| Jack Fasano | 9 | 182.0 | 2000 | ||
| Adrian Villicana | 9 | 150.0 | 2000 | ||
| Thomas Donnelly | 9 | 146.7 | 2000 | ||
| Armando Quinonez | 9 | 138.0 | 2000 | ||
| Ralph Griffeth | 9 | 85.7 | 2000 | ||
| Leandro Aranda | 9 | 76.0 | 2000 | ||
| Michael Odom | 9 | 68.3 | 2000 | ||
| 87. | Samson Steele | 8 | 266.0 | 2000 | |
| Joey Barros | 8 | 258.3 | 2000 | ||
| George Harmon | 8 | 224.0 | 2000 | ||
| Christopher Partida | 8 | 223.7 | 2000 | ||
| Sauron Evil | 8 | 204.0 | 2000 | ||
| Alfonso Arevalo | 8 | 203.0 | 2000 | ||
| Randy Kennedy | 8 | 202.3 | 2000 | ||
| Rene Mills | 8 | 193.7 | 2000 | ||
| John Charity | 8 | 152.3 | 2000 | ||
| Joel Garofalo | 8 | 147.3 | 2000 | ||
| Sergio Martinez | 8 | 146.3 | 2000 | ||
| Douglas Elia | 8 | 144.0 | 2000 | ||
| Stephen Mcjunkin | 8 | 131.3 | 2000 | ||
| Ricardo Spadaro | 8 | 119.3 | 2000 |
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