10 games · 2021–2026 · 1 classical · 4 online
Osmak 12 draws7 Kosteniuk
20.0% for Osmak
Openings between them
| A07 | King's Indian Attack | 2 | 50.0% |
| D02 | Queen's Pawn Game: London System | 2 | 0.0% |
| A28 | English Opening: Four Knights System, Nimzowitsch Variation | 1 | 0.0% |
| B40 | Sicilian Defense: French Variation | 1 | 0.0% |
| C01 | French Defense: Exchange Variation | 1 | 50.0% |
| C23 | Bishop's Opening | 1 | 0.0% |
| C24 | Bishop's Opening: Vienna Hybrid | 1 | 0.0% |
| C55 | Italian Game: Two Knights Defense, Modern Bishop's Opening | 1 | 50.0% |
All games
| Osmak, Yuliia2455 | 0-1 | Kosteniuk, A2496 | TCh-FRA Top 12 w Final | 2026 |
| Kosteniuk, A2483 | ½-½ | Osmak, Yuliia2454 | European Women Blitz 2026 | 2026 |
| Kosteniuk, A2474 | ½-½ | Osmak, Yuliia2468 | FIDE World Rapid Team | 2025 |
| Kosteniuk, A2488 | 1-0 | Osmak, Yuliia2464 | Titled Tue 16th Jul Early | 2024 |
| Osmak, Yuliia2464 | 0-1 | Kosteniuk, A2501 | Swiss Queens Wed #22 2024 | 2024 |
| Kosteniuk, A2501 | 0-1 | Osmak, Yuliia2452 | Swiss Queens Wed #8 2024 | 2024 |
| Kosteniuk, A2501 | 1-0 | Osmak, Yuliia2450 | European Women Rapid 2023 | 2024 |
| Kosteniuk, A2501 | 1-0 | Osmak, Yuliia2450 | European Women Blitz 2023 | 2024 |
| Osmak, Yuliia2432 | 0-1 | Kosteniuk, A2516 | Titled Tuesday 4th Jan | 2022 |
| Osmak, Yuliia2419 | 0-1 | Kosteniuk, A2516 | World Blitz Women 2021 | 2021 |