Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. C Burille vs Showalter |
| 0-1 | 21 | 1889 | 6th American Chess Congress, New York | C25 Vienna |
27. Showalter vs M Weiss |
  | 0-1 | 22 | 1889 | 6th American Chess Congress, New York | C65 Ruy Lopez, Berlin Defense |
28. Gossip vs Showalter |
  | ½-½ | 51 | 1889 | 6th American Chess Congress, New York | C67 Ruy Lopez |
29. Showalter vs Taubenhaus |
  | 0-1 | 26 | 1889 | 6th American Chess Congress, New York | C37 King's Gambit Accepted |
30. Showalter vs M Judd |
 | 0-1 | 98 | 1889 | 6th American Chess Congress, New York | C84 Ruy Lopez, Closed |
31. Showalter vs D Baird |
| 0-1 | 45 | 1889 | 6th American Chess Congress, New York | C70 Ruy Lopez |
32. Lipschutz vs Showalter |
 | 1-0 | 42 | 1889 | 6th American Chess Congress, New York | C22 Center Game |
33. Showalter vs Blackburne |
 | 1-0 | 57 | 1889 | 6th American Chess Congress, New York | C62 Ruy Lopez, Old Steinitz Defense |
34. Gunsberg vs Showalter |
| 1-0 | 49 | 1889 | 6th American Chess Congress, New York | C50 Giuoco Piano |
35. Showalter vs Chigorin |
  | 0-1 | 40 | 1889 | 6th American Chess Congress, New York | C59 Two Knights |
36. Bird vs Showalter |
 | 1-0 | 49 | 1889 | 6th American Chess Congress, New York | A03 Bird's Opening |
37. Showalter vs N MacLeod |
  | 1-0 | 26 | 1889 | 6th American Chess Congress, New York | C30 King's Gambit Declined |
38. Showalter vs J Baird |
 | 1-0 | 25 | 1889 | 6th American Chess Congress, New York | B01 Scandinavian |
39. Gossip vs Showalter |
  | 0-1 | 39 | 1889 | 6th American Chess Congress, New York | C29 Vienna Gambit |
40. E Delmar vs Showalter |
| 0-1 | 57 | 1889 | 6th American Chess Congress, New York | A03 Bird's Opening |
41. Showalter vs Burn |
 | 1-0 | 34 | 1889 | 6th American Chess Congress, New York | C67 Ruy Lopez |
42. J Hanham vs Showalter |
 | 1-0 | 35 | 1889 | 6th American Chess Congress, New York | D00 Queen's Pawn Game |
43. Showalter vs W Pollock |
  | 1-0 | 30 | 1889 | 6th American Chess Congress, New York | C80 Ruy Lopez, Open |
44. D Martinez vs Showalter |
 | 0-1 | 33 | 1889 | 6th American Chess Congress, New York | C50 Giuoco Piano |
45. Lipschutz vs Showalter |
 | 0-1 | 51 | 1890 | St. Louis | A07 King's Indian Attack |
46. Showalter vs J Logan |
 | 1-0 | 30 | 1890 | corr | C51 Evans Gambit |
47. Showalter vs W Haller |
| 1-0 | 22 | 1890 | 3rd US Chess Ass'n Congress | C51 Evans Gambit |
48. Showalter vs L Uedemann |
| 1-0 | 53 | 1890 | 3rd USCA Congress | C51 Evans Gambit |
49. A Robbins vs Showalter |
  | 0-1 | 22 | 1890 | 3rd USCA Congress | C59 Two Knights |
50. Showalter vs Lipschutz |
| 1-0 | 66 | 1890 | Exhibition Match Game | C67 Ruy Lopez |