| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. R Antoniewski vs F Doettling |
| ½-½ | 31 | 1998 | EU-ch U18 | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 52. R Antoniewski vs R Slobodjan |
| 0-1 | 36 | 1998 | Cappelle Open | B07 Pirc |
| 53. R Antoniewski vs P Haba |
| 0-1 | 43 | 1998 | CZE-chT 1997/98 | B49 Sicilian, Taimanov Variation |
| 54. I Nowak vs R Antoniewski |
| 0-1 | 37 | 1998 | POL-chT | A48 King's Indian |
| 55. R Antoniewski vs K Jakubowski |
| 0-1 | 45 | 1999 | POL-ch U20 | B90 Sicilian, Najdorf |
| 56. R Antoniewski vs M Kazakov |
| 1-0 | 22 | 1999 | Bydgoszcz Bank Pocztowy op | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 57. R Antoniewski vs O Gritsak |
| 0-1 | 43 | 1999 | MK Cafe Cup-A | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 58. P Blehm vs R Antoniewski |
| ½-½ | 24 | 1999 | MK Cafe Cup-A | C07 French, Tarrasch |
| 59. R Antoniewski vs H Teske |
| 1-0 | 47 | 1999 | MK Cafe Cup-A | B01 Scandinavian |
| 60. A Poluljahov vs R Antoniewski |
| 0-1 | 39 | 1999 | MK Cafe Cup-A | E92 King's Indian |
| 61. R Antoniewski vs Romanishin |
| ½-½ | 32 | 1999 | MK Cafe Cup-A | B46 Sicilian, Taimanov Variation |
| 62. M Ulybin vs R Antoniewski |
| ½-½ | 36 | 1999 | MK Cafe Cup-A | E97 King's Indian |
| 63. R Antoniewski vs K Lerner |
| 1-0 | 72 | 1999 | MK Cafe Cup-A | B62 Sicilian, Richter-Rauzer |
| 64. R Antoniewski vs Timoshenko |
| ½-½ | 17 | 1999 | MK Cafe Cup-A | C92 Ruy Lopez, Closed |
| 65. Onischuk vs R Antoniewski |
| ½-½ | 71 | 1999 | MK Cafe Cup-A | B32 Sicilian |
| 66. P Tregubov vs R Antoniewski |
| 0-1 | 38 | 1999 | MK Cafe Cup-A | E63 King's Indian, Fianchetto, Panno Variation |
| 67. W Schmidt vs R Antoniewski |
| 1-0 | 37 | 1999 | Polish Team Championship | E97 King's Indian |
| 68. M Kaminski vs R Antoniewski |
| ½-½ | 11 | 1999 | Polish Team Championship | A07 King's Indian Attack |
| 69. L Ostrowski vs R Antoniewski |
| ½-½ | 53 | 1999 | Polish Team Championship | A48 King's Indian |
| 70. R Antoniewski vs P Ilczuk |
| 1-0 | 44 | 1999 | Polish Team Championship | C63 Ruy Lopez, Schliemann Defense |
| 71. R Przedmojski vs R Antoniewski |
| ½-½ | 16 | 1999 | Polish Team Championship | E81 King's Indian, Samisch |
| 72. R Antoniewski vs P Jaracz |
| ½-½ | 8 | 1999 | Polish Team Championship | B90 Sicilian, Najdorf |
| 73. Rozentalis vs R Antoniewski |
| 1-0 | 35 | 1999 | Polish Team Championship | B31 Sicilian, Rossolimo Variation |
| 74. R Antoniewski vs R Kempinski |
| 0-1 | 30 | 1999 | Polish Team Championship | B90 Sicilian, Najdorf |
| 75. S Ulak vs R Antoniewski |
| 0-1 | 61 | 1999 | Polish Team Championship | E63 King's Indian, Fianchetto, Panno Variation |
Kibitzing
