Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. I de los Rios vs O Trompowsky |
| ½-½ | 17 | 1937 | South American Championship | E38 Nimzo-Indian, Classical, 4...c5 |
27. O Trompowsky vs J Gondim |
| 1-0 | 56 | 1937 | South American Championship | D32 Queen's Gambit Declined, Tarrasch |
28. B Schneiderman vs O Trompowsky |
| ½-½ | 44 | 1937 | South American Championship | A15 English |
29. A da Silva Rocha vs O Trompowsky |
| ½-½ | 21 | 1937 | South American Championship | E10 Queen's Pawn Game |
30. O Trompowsky vs G Camara |
| 1-0 | 26 | 1937 | South American Championship | D43 Queen's Gambit Declined Semi-Slav |
31. O Trompowsky vs E Nacif |
| ½-½ | 42 | 1937 | South American Championship | D17 Queen's Gambit Declined Slav |
32. Letelier vs O Trompowsky |
| ½-½ | 50 | 1937 | South American Championship | D51 Queen's Gambit Declined |
33. O Trompowsky vs M Kiss |
 | 1-0 | 36 | 1937 | South American Championship | D51 Queen's Gambit Declined |
34. W O Cruz vs O Trompowsky |
| ½-½ | 55 | 1938 | BRA-ch | D61 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
35. W O Cruz vs O Trompowsky |
| 1-0 | 44 | 1938 | BRA-ch | A43 Old Benoni |
36. O Trompowsky vs W O Cruz |
| 1-0 | 54 | 1938 | BRA-ch | D50 Queen's Gambit Declined |
37. O Trompowsky vs W O Cruz |
| ½-½ | 45 | 1938 | BRA-ch | E24 Nimzo-Indian, Samisch |
38. O Trompowsky vs C Guimard |
| 1-0 | 41 | 1938 | Montevideo | D62 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
39. O Trompowsky vs R Grau |
| ½-½ | 34 | 1938 | Montevideo | D55 Queen's Gambit Declined |
40. O Trompowsky vs A Olivera |
| ½-½ | 22 | 1938 | Montevideo | E24 Nimzo-Indian, Samisch |
41. O Trompowsky vs V Fenoglio |
| ½-½ | 36 | 1938 | Montevideo | D15 Queen's Gambit Declined Slav |
42. A Salles Oliveira vs O Trompowsky |
| ½-½ | 20 | 1938 | Montevideo | A47 Queen's Indian |
43. C H Maderna vs O Trompowsky |
| ½-½ | 42 | 1938 | Montevideo | E33 Nimzo-Indian, Classical |
44. R Bensadon vs O Trompowsky |
| 1-0 | 52 | 1938 | Montevideo | A47 Queen's Indian |
45. O Trompowsky vs R Flores Alvarez |
 | 1-0 | 31 | 1938 | Montevideo | E24 Nimzo-Indian, Samisch |
46. J C Balparda vs O Trompowsky |
| 0-1 | 30 | 1938 | Montevideo | E33 Nimzo-Indian, Classical |
47. W O Cruz vs O Trompowsky |
| ½-½ | 20 | 1938 | Montevideo | D30 Queen's Gambit Declined |
48. J Canepa vs O Trompowsky |
 | 1-0 | 39 | 1938 | Montevideo | B74 Sicilian, Dragon, Classical |
49. O Trompowsky vs A da Silva Rocha |
| ½-½ | 21 | 1938 | Montevideo | D53 Queen's Gambit Declined |
50. Alekhine vs O Trompowsky |
  | 1-0 | 38 | 1938 | Montevideo | E01 Catalan, Closed |