68 MLB Players debut on September 30
| # | Player | debut Date |
|---|---|---|
| 1. | Sandy Alomar | 9/30/1988 |
| 2. | Fred Applegate | 9/30/1904 |
| 3. | Howard Armstrong | 9/30/1911 |
| 4. | King Bader | 9/30/1912 |
| 5. | Lady Baldwin | 9/30/1884 |
| 6. | John Bale | 9/30/1999 |
| 7. | Clint Blume | 9/30/1922 |
| 8. | Kevin Brown | 9/30/1986 |
| 9. | Ed Busch | 9/30/1943 |
| 10. | Bullet Joe Bush | 9/30/1912 |
| 11. | Marc Campbell | 9/30/1907 |
| 12. | Erick Castillo | 9/30/2021 |
| 13. | Mike Cvengros | 9/30/1922 |
| 14. | Sun Daly | 9/30/1892 |
| 15. | Bobby Darwin | 9/30/1962 |
| 16. | Pat Dealy | 9/30/1884 |
| 17. | Joe Delahanty | 9/30/1907 |
| 18. | Jim Derrington | 9/30/1956 |
| 19. | Murry Dickson | 9/30/1939 |
| 20. | Tom Dolan | 9/30/1879 |
| 21. | Anton Falch | 9/30/1884 |
| 22. | Joe Giebel | 9/30/1913 |
| 23. | Gary Glover | 9/30/1999 |
| 24. | Jim Golden | 9/30/1960 |
| 25. | Charlie Guth | 9/30/1880 |
| 26. | Santiago Guzman | 9/30/1969 |
| 27. | Bill Hayes | 9/30/1980 |
| 28. | Harley Hisner | 9/30/1951 |
| 29. | Ray Jansen | 9/30/1910 |
| 30. | Chris Jelic | 9/30/1990 |
| 31. | Willie Keeler | 9/30/1892 |
| 32. | Kevin Kiermaier | 9/30/2013 |
| 33. | Karl Kolseth | 9/30/1915 |
| 34. | Rube Kroh | 9/30/1906 |
| 35. | Hector Martinez | 9/30/1962 |
| 36. | Don McCormack | 9/30/1980 |
| 37. | Bill Mizeur | 9/30/1923 |
| 38. | Phil Morrison | 9/30/1921 |
| 39. | Bob Muncrief | 9/30/1937 |
| 40. | Xavier Nady | 9/30/2000 |
| 41. | Offa Neal | 9/30/1905 |
| 42. | Jim Northrup | 9/30/1964 |
| 43. | Rafael Ortega | 9/30/2012 |
| 44. | Yorkis Perez | 9/30/1991 |
| 45. | Bill Perrin | 9/30/1934 |
| 46. | Lee Quillin | 9/30/1906 |
| 47. | Jeff Rineer | 9/30/1979 |
| 48. | Bill Roman | 9/30/1964 |
| 49. | Emil Roy | 9/30/1933 |
| 50. | Dick Rudolph | 9/30/1910 |
| 51. | Milt Scott | 9/30/1882 |
| 52. | Donnie Scott | 9/30/1983 |
| 53. | Ed Seward | 9/30/1885 |
| 54. | Jack Smith | 9/30/1915 |
| 55. | George Snyder | 9/30/1882 |
| 56. | Mose Solomon | 9/30/1923 |
| 57. | Hal Stowe | 9/30/1960 |
| 58. | Steamboat Struss | 9/30/1934 |
| 59. | Guy Sturdy | 9/30/1927 |
| 60. | Marty Walker | 9/30/1928 |
| 61. | Floyd Weaver | 9/30/1962 |
| 62. | Bob Weiland | 9/30/1928 |
| 63. | Rip Wheeler | 9/30/1921 |
| 64. | Hank Winston | 9/30/1933 |
| 65. | Wood | 9/30/1874 |
| 66. | Roy Wright | 9/30/1956 |
| 67. | George Yantz | 9/30/1912 |
| 68. | Angel Zerpa | 9/30/2021 |
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