98 MLB Players debut in 1903
| # | Player | debut Date |
|---|---|---|
| 1. | Fred Abbott | 4/25/1903 |
| 2. | Red Ames | 9/14/1903 |
| 3. | Harry Aubrey | 4/22/1903 |
| 4. | Charlie Babb | 4/17/1903 |
| 5. | Bill Bartley | 9/15/1903 |
| 6. | Charles Bender | 4/20/1903 |
| 7. | Harry Berte | 9/17/1903 |
| 8. | Harry Betts | 9/22/1903 |
| 9. | Monte Beville | 4/24/1903 |
| 10. | Elmer Bliss | 9/28/1903 |
| 11. | Benny Bowcock | 9/18/1903 |
| 12. | Matt Broderick | 5/1/1903 |
| 13. | Mordecai Brown | 4/19/1903 |
| 14. | Fred Burchell | 4/17/1903 |
| 15. | Jack Burns | 9/11/1903 |
| 16. | Fred Carisch | 8/31/1903 |
| 17. | Harry Clark | 9/11/1903 |
| 18. | Jim Cook | 7/2/1903 |
| 19. | Jack Coveney | 9/19/1903 |
| 20. | Gene Curtis | 9/21/1903 |
| 21. | Bert Daly | 8/7/1903 |
| 22. | Charlie DeArmond | 9/19/1903 |
| 23. | John Deering | 5/12/1903 |
| 24. | Lee DeMontreville | 7/10/1903 |
| 25. | Ernie Diehl | 5/31/1903 |
| 26. | Jack Doscher | 7/2/1903 |
| 27. | Jack Dunleavy | 5/30/1903 |
| 28. | Jim Fairbank | 9/18/1903 |
| 29. | Cy Falkenberg | 4/21/1903 |
| 30. | Doc Gessler | 4/22/1903 |
| 31. | Norwood Gibson | 4/29/1903 |
| 32. | Claude Gouzzie | 7/22/1903 |
| 33. | Reddy Grey | 5/28/1903 |
| 34. | Bill Hanlon | 4/16/1903 |
| 35. | Jack Hardy | 8/29/1903 |
| 36. | Weldon Henley | 4/23/1903 |
| 37. | Hunter Hill | 5/9/1903 |
| 38. | Hugh Hill | 5/1/1903 |
| 39. | Ed Hilley | 9/29/1903 |
| 40. | Danny Hoffman | 4/20/1903 |
| 41. | Solly Hofman | 7/28/1903 |
| 42. | Fred Holmes | 8/23/1903 |
| 43. | Ed Householder | 4/17/1903 |
| 44. | Ed Hug | 7/6/1903 |
| 45. | Pat Hynes | 9/27/1903 |
| 46. | Happy Iott | 9/16/1903 |
| 47. | Oscar Jones | 4/20/1903 |
| 48. | Dutch Jordan | 4/25/1903 |
| 49. | John Kalahan | 9/29/1903 |
| 50. | Dan Kerwin | 9/27/1903 |
| 51. | Ed Killian | 8/25/1903 |
| 52. | Hans Lobert | 9/21/1903 |
| 53. | John Lovett | 5/22/1903 |
| 54. | Joe Marshall | 9/7/1903 |
| 55. | Joe Martin | 4/28/1903 |
| 56. | Judge McCredie | 4/17/1903 |
| 57. | Connie McGeehan | 7/15/1903 |
| 58. | Larry Milton | 5/7/1903 |
| 59. | Charles Moran | 4/29/1903 |
| 60. | Charlie Moran | 9/9/1903 |
| 61. | Lew Moren | 9/21/1903 |
| 62. | Cy Morgan | 9/18/1903 |
| 63. | George Moriarty | 9/27/1903 |
| 64. | Simon Nicholls | 9/18/1903 |
| 65. | Champ Osteen | 9/18/1903 |
| 66. | Barney Pelty | 8/20/1903 |
| 67. | Jack Pfiester | 9/8/1903 |
| 68. | Ed Pinnance | 9/14/1903 |
| 69. | Bill Pounds | 5/2/1903 |
| 70. | Ambrose Puttmann | 9/4/1903 |
| 71. | Eddie Quick | 9/28/1903 |
| 72. | Arthur Ragan | 9/19/1903 |
| 73. | Tommy Raub | 6/3/1903 |
| 74. | Rabbit Robinson | 4/22/1903 |
| 75. | Frank Roth | 4/18/1903 |
| 76. | John Rudolph | 7/3/1903 |
| 77. | War Sanders | 4/18/1903 |
| 78. | Doc Scanlan | 9/24/1903 |
| 79. | Henry Schmidt | 4/17/1903 |
| 80. | Owen Shannon | 9/5/1903 |
| 81. | Jake Stahl | 6/6/1903 |
| 82. | George Stone | 4/20/1903 |
| 83. | Jesse Stovall | 8/31/1903 |
| 84. | Pinky Swander | 9/18/1903 |
| 85. | Lee Tannehill | 4/22/1903 |
| 86. | Ed Taylor | 8/8/1903 |
| 87. | Grant Thatcher | 9/9/1903 |
| 88. | Gus Thompson | 8/31/1903 |
| 89. | John Titus | 6/8/1903 |
| 90. | Lon Ury | 9/9/1903 |
| 91. | Bucky Veil | 4/19/1903 |
| 92. | John Walsh | 6/22/1903 |
| 93. | Jake Weimer | 4/17/1903 |
| 94. | Jimmy Wiggs | 4/23/1903 |
| 95. | Kaiser Wilhelm | 4/18/1903 |
| 96. | Barney Wolfe | 4/24/1903 |
| 97. | Harry Wood | 4/19/1903 |
| 98. | Jack Zalusky | 9/2/1903 |
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