| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. de Riviere vs J Laroche |
 | 1-0 | 22 | 1855 | Laroche - de Riviere | A83 Dutch, Staunton Gambit |
| 27. S Dubois vs de Riviere |
 | 1-0 | 14 | 1855 | Match | C38 King's Gambit Accepted |
| 28. de Riviere vs J Laroche |
| 1-0 | 63 | 1855 | Laroche - de Riviere | A84 Dutch |
| 29. Falkbeer vs de Riviere |
| 1-0 | 41 | 1855 | Casual game | C51 Evans Gambit |
| 30. de Riviere vs S Dubois |
| 0-1 | 26 | 1855 | Match | B01 Scandinavian |
| 31. de Riviere vs J Laroche |
| 1-0 | 31 | 1856 | Casual game | C52 Evans Gambit |
| 32. J Schulten vs de Riviere |
| 0-1 | 31 | 1856 | de Riviere - Schulten | B20 Sicilian |
| 33. Harrwitz vs de Riviere |
| 0-1 | 35 | 1856 | Paris | A85 Dutch, with c4 & Nc3 |
| 34. Harrwitz vs de Riviere |
| 1-0 | 25 | 1856 | Paris | A85 Dutch, with c4 & Nc3 |
| 35. J Laroche vs de Riviere |
| 1-0 | 35 | 1856 | Casual game | C44 King's Pawn Game |
| 36. de Riviere vs Harrwitz |
| 0-1 | 21 | 1856 | Match | A02 Bird's Opening |
| 37. J Schulten vs de Riviere |
| 0-1 | 52 | 1856 | de Riviere - Schulten | B20 Sicilian |
| 38. de Riviere vs J Schulten |
| 1-0 | 49 | 1856 | de Riviere - Schulten | C64 Ruy Lopez, Classical |
| 39. Morphy vs de Riviere |
| 1-0 | 26 | 1858 | Casual game | C51 Evans Gambit |
| 40. de Riviere vs De Blemer |
| 1-0 | 42 | 1858 | Blindfold simul, 2b | D06 Queen's Gambit Declined |
| 41. de Riviere vs de Basterot |
| 0-1 | 44 | 1858 | Blindfold simul, 2b | C36 King's Gambit Accepted, Abbazia Defense |
| 42. de Riviere vs Morphy |
| ½-½ | 36 | 1858 | Casual game | C77 Ruy Lopez |
| 43. de Riviere vs Morphy |
| 0-1 | 44 | 1858 | Paris | C51 Evans Gambit |
| 44. de Riviere vs Morphy |
| 0-1 | 47 | 1858 | Casual game | C51 Evans Gambit |
| 45. Anderssen vs de Riviere |
| 1-0 | 32 | 1858 | Casual game | C55 Two Knights Defense |
| 46. de Riviere vs Anderssen |
| 0-1 | 39 | 1858 | Casual game | C44 King's Pawn Game |
| 47. Anderssen vs de Riviere |
| 0-1 | 55 | 1858 | Casual game | C52 Evans Gambit |
| 48. P Journoud vs de Riviere |
| 1-0 | 36 | 1859 | de Riviere - Journoud | C50 Giuoco Piano |
| 49. de Riviere vs P Journoud |
| 0-1 | 39 | 1859 | de Riviere - Journoud | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 50. P Journoud vs de Riviere |
| 0-1 | 32 | 1859 | de Riviere - Journoud | C45 Scotch Game |
Kibitzing
