| Game | Result | Opening | Date |
|---|---|---|---|
| Jaderberg, Bjorn (2059) – Kosten, Anthony C. (2370) | 0-1 | Rapport-Jobava System | 2026-09-04 |
| Westerinen, Heikki M.J. (2205) – Kosten, Anthony C. (2370) | 1/2-1/2 | Ruy Lopez: Morphy Defense, Cozio Defense | 2026-09-03 |
| Baker, Chris W (2174) – Kosten, Anthony C. (2370) | 1/2-1/2 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | 2026-09-02 |
| Lederman, Leon (2153) – Kosten, Anthony C. (2370) | 0-1 | Ruy Lopez: Closed | 2026-09-01 |
| Kosten, Anthony C. (2370) – Ortega, Lexy (2337) | 1/2-1/2 | King's Indian Attack: Double Fianchetto | 2026-08-31 |
| Mikhalchishin, Adrian (2415) – Kosten, Anthony C. (2370) | 1/2-1/2 | Queen's Gambit Declined: Semi-Tarrasch Defense | 2026-08-30 |
| Hugentobler, Patrick (2168) – Kosten, Anthony C. (2370) | 0-1 | Ruy Lopez: Exchange Variation, King's Bishop Variation | 2026-08-28 |
| Kosten, Anthony C. (2370) – Kowalczuk, Wojciech (2029) | 1-0 | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation, Stonewall Line | 2026-08-27 |
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