76 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Kostak, Tetyana | Schaper, Alicia | 1-0 | B50 | Runde 8: Kostak, Tetyana - Schaper, Alicia | 2026-08-22 |
| Kostak, Tetyana | Berzina, Ilze | 0-1 | D02 | Runde 5: Kostak, Tetyana - Berzina, Ilze | 2026-08-20 |
| Kostak, Tetyana | Ter-Avetisjana, Agnesa Stepania | 0-1 | B10 | Runde 6: Kostak, Tetyana - Ter-Avetisjana, Agnesa Stepania | 2026-08-20 |
| Kostak, Tetyana | Papadopoulou, Soultana | 1-0 | A48 | Runde 2: Kostak, Tetyana - Papadopoulou, Soultana | 2026-08-18 |
| Kostak, Tetyana | Khuong, Thi Hong Nhung | 1-0 | B28 | Round 7: Kostak, Tetyana - Khuong, Thi Hong Nhung | 2026-07-23 |
| Kostak, Tetyana | von Beckh, Frieda | 0-1 | B31 | Round 5: Kostak, Tetyana - von Beckh, Frieda | 2026-07-22 |
| Kostak, Tetyana | Voigt, Anastasia | 1/2-1/2 | D05 | Round 3: Kostak, Tetyana - Voigt, Anastasia | 2026-07-20 |
| Kostak, Tetyana | Lobe, Sandra, Dr. | 1-0 | C44 | Round 1: Kostak, Tetyana - Lobe, Sandra, Dr. | 2026-07-19 |
| Kostak, Tetyana | Roessler, Ulrike | 1/2-1/2 | B50 | Round 5: Kostak, Tetyana - Roessler, Ulrike | 2026-06-07 |
| Kostak, Tetyana | Nguyen, Ha Thanh | 1/2-1/2 | B40 | Round 2: Kostak, Tetyana - Nguyen, Ha Thanh | 2026-06-05 |
| Kostak, Tetyana | Arnhold, Steffi | 0-1 | B40 | Round 1: Kostak, Tetyana - Arnhold, Steffi | 2026-06-04 |
| Kostak, Tetyana | Heinemann, Josefine | 0-1 | B31 | Round 8: Kostak, Tetyana - Heinemann, Josefine | 2025-05-22 |
| Kostak, Tetyana | Dolzhykova, Kateryna | 0-1 | C00 | Round 5: Kostak, Tetyana - Dolzhykova, Kateryna | 2025-05-19 |
| Kostak, Tetyana | Peglau, Charis | 1-0 | B06 | Round 3: Kostak, Tetyana - Peglau, Charis | 2025-05-17 |
| Kostak, Tetyana | Schneider, Jana | 1/2-1/2 | D05 | Round 1: Kostak, Tetyana - Schneider, Jana | 2025-05-15 |
| Kostak, Tetyana | Sieber, Fiona | 1/2-1/2 | B30 | Round 7: Kostak, Tetyana - Sieber, Fiona | 2025-05-14 |
| Kostak, Tetyana | Velicka, Petr | 0-1 | B10 | 35. Staufer Open 2025 | 2025-01-04 |
| Kostak, Tetyana | Meissner, Felix | 0-1 | B50 | 35. Staufer Open 2025 | 2025-01-02 |
| Kostak, Tetyana | Klek, Hanna Marie | 0-1 | C44 | Round 7: Kostak, Tetyana - Klek, Hanna Marie | 2024-10-13 |
| Kostak, Tetyana | Zhou, Lepu Coco | 0-1 | B40 | Round 9: Kostak, Tetyana - Zhou, Lepu Coco | 2024-10-13 |
| Kostak, Tetyana | Schulze, Lara | 1-0 | A06 | Round 5: Kostak, Tetyana - Schulze, Lara | 2024-10-12 |
| Kostak, Tetyana | Zell, Mirjam | 1-0 | C20 | Round 1: Kostak, Tetyana - Zell, Mirjam | 2024-09-28 |
| Kostak, Tetyana | Dolzhykova, Kateryna | 0-1 | A08 | Round 18: Kostak, Tetyana - Dolzhykova, Kateryna | 2024-09-28 |
| Kostak, Tetyana | Margaryan, Susanna | 1-0 | B20 | Round 20: Kostak, Tetyana - Margaryan, Susanna | 2024-09-28 |
| Kostak, Tetyana | Wagenschuetz, Evelyn | 1-0 | B50 | Round 3: Kostak, Tetyana - Wagenschuetz, Evelyn | 2024-08-20 |
| Kostak, Tetyana | Just, Anita, Dr. | 1-0 | C00 | Round 1: Kostak, Tetyana - Just, Anita, Dr. | 2024-08-16 |
| Kostak, Tetyana | Braun, Kristin | 1-0 | B30 | Round 5: Kostak, Tetyana - Braun, Kristin | 2024-08-16 |
| Kostak, Tetyana | Bluebaum, Johanna | 1-0 | D04 | Round 7: Kostak, Tetyana - Bluebaum, Johanna | 2024-08-16 |
| Kostak, Tetyana | Zozulia, Anna | 1/2-1/2 | B06 | German Women's State Team Championship | 2023-06-11 |
| Kostak, Tetyana | Barpiyeva, Gulsana | 0-1 | B40 | German Women's State Team Championship | 2023-06-09 |
| Kostak, Tetyana | Bazzazi, Elnaz | 1-0 | C50 | German Women's State Team Championship | 2023-06-08 |
| Kostak, Tetyana | Just, Anita, Dr. | 1-0 | C00 | Runde 2: Kostak, Tetyana - Just, Anita, Dr. | |
| Kostak, Tetyana | Wang, Enya Marie | 1-0 | D04 | Runde 4: Kostak, Tetyana - Wang, Enya Marie | |
| Kostak, Tetyana | Neumann, Helena | 1/2-1/2 | A05 | Runde 6: Kostak, Tetyana - Neumann, Helena | |
| Kostak, Tetyana | Koldunov, Elena | 1-0 | B50 | Runde 9: Kostak, Tetyana - Koldunov, Elena | |
| Kostak, Tetyana | Bruehl, Katharina | 1-0 | B01 | Runde 3: Kostak, Tetyana - Bruehl, Katharina | |
| Kostak, Tetyana | Novikova, Marharyta | 1-0 | D05 | Runde 5: Kostak, Tetyana - Novikova, Marharyta | |
| Kostak, Tetyana | Neumann, Helena | 0-1 | B10 | Runde 7: Kostak, Tetyana - Neumann, Helena | |
| Kostak, Tetyana | Trunz, Tamila | 1-0 | B40 | Runde 9: Kostak, Tetyana - Trunz, Tamila |