| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 126. A Ostrovskiy vs N Chasin |
| ½-½ | 60 | 2024 | 1000GM NY Summer GMA | B45 Sicilian, Taimanov |
| 127. G Huston vs A Ostrovskiy |
| ½-½ | 36 | 2024 | 1000GM NY Summer GMA | B12 Caro-Kann Defense |
| 128. A Ostrovskiy vs V Plat |
| ½-½ | 15 | 2024 | 1000GM NY Summer GMA | C67 Ruy Lopez |
| 129. O Barbosa vs A Ostrovskiy |
| ½-½ | 15 | 2024 | 1000GM NY Summer GMA | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 130. A Ostrovskiy vs S Bora |
| 0-1 | 49 | 2024 | 1000GM NY Summer GMA | C55 Two Knights Defense |
| 131. D Khamrakulov vs A Ostrovskiy |
| ½-½ | 15 | 2024 | 1000GM NY Summer GMA | B12 Caro-Kann Defense |
| 132. A Ostrovskiy vs R Panjwani |
| 0-1 | 31 | 2024 | 1000GM NY Summer GMA | C55 Two Knights Defense |
| 133. G Rorrer vs A Ostrovskiy |
| ½-½ | 15 | 2024 | 1000GM NY Summer GMA | C63 Ruy Lopez, Schliemann Defense |
| 134. A Ostrovskiy vs A Nakada |
| ½-½ | 15 | 2024 | 1000GM NY Summer GMA | B13 Caro-Kann, Exchange |
| 135. P Teclaf vs A Ostrovskiy |
| ½-½ | 15 | 2024 | New York Fall Invitational | C67 Ruy Lopez |
| 136. A Ostrovskiy vs Swiercz |
| ½-½ | 53 | 2024 | Saint Louis Masters | B30 Sicilian |
| 137. Y Quesada Perez vs A Ostrovskiy |
| ½-½ | 34 | 2024 | Saint Louis Masters | B12 Caro-Kann Defense |
| 138. A Ostrovskiy vs G Kantor |
| 0-1 | 74 | 2024 | Saint Louis Masters | C78 Ruy Lopez |
| 139. T Abrahamyan vs A Ostrovskiy |
| 0-1 | 57 | 2024 | Saint Louis Masters | B12 Caro-Kann Defense |
| 140. A Ostrovskiy vs Mishra |
| ½-½ | 22 | 2024 | Saint Louis Masters | B90 Sicilian, Najdorf |
| 141. I Nyzhnyk vs A Ostrovskiy |
| 1-0 | 28 | 2024 | Saint Louis Masters | B15 Caro-Kann |
| 142. N Ladan vs A Ostrovskiy |
| ½-½ | 52 | 2024 | Saint Louis Masters | B10 Caro-Kann |
| 143. A Ostrovskiy vs A Gutla |
| ½-½ | 28 | 2024 | Saint Louis Masters | C78 Ruy Lopez |
| 144. T Adewumi vs A Ostrovskiy |
| 0-1 | 49 | 2024 | Saint Louis Masters | D35 Queen's Gambit Declined |
| 145. C Diaz Camallonga vs A Ostrovskiy |
| 1-0 | 37 | 2025 | Semana Santa Open | B10 Caro-Kann |
| 146. Sriansh Das vs A Ostrovskiy |
| 1-0 | 27 | 2025 | Semana Santa Open | B15 Caro-Kann |
| 147. A Ostrovskiy vs T Sosa |
| 0-1 | 106 | 2025 | Menorca Open | B27 Sicilian |
| 148. R Vogel vs A Ostrovskiy |
| 0-1 | 37 | 2025 | Menorca Open | A06 Reti Opening |
| 149. A Ostrovskiy vs A Woodward |
| 0-1 | 90 | 2025 | Menorca Open | B90 Sicilian, Najdorf |
| 150. A Ostrovskiy vs A Adury |
| ½-½ | 26 | 2025 | Cleveland Open | B30 Sicilian |
Kibitzing
