8 games · 2016–2026 · 8 classical · 0 online
Koykka 21 draws5 Sipila
31.3% for Koykka
Openings between them
| A48 | London System, with Be2 | 1 | 100.0% |
| B30 | Sicilian Defense: Closed, Anti-Sveshnikov Variation, with d6 | 1 | 100.0% |
| C02 | French Defense: Advance Variation, Milner-Barry Gambit, Main Line | 1 | 0.0% |
| C10 | French Defense: Rubinstein Variation, Blackburne Defense | 1 | 0.0% |
| C17 | French Defense: Winawer Variation, Retreat Variation, Armenian Line | 1 | 50.0% |
| C47 | Four Knights Game | 1 | 0.0% |
| E00 | Catalan Opening | 1 | 0.0% |
| E11 | Bogo-Indian Defense: Retreat Variation | 1 | 0.0% |
All games
| Sipila, V2483 | 1-0 | Koykka, P2340 | TCh-FIN 2025-26 | 2026 |
| Koykka, P2351 | 0-1 | Sipila, V2447 | ch-FIN 2025 | 2025 |
| Sipila, V2439 | 1-0 | Koykka, P2350 | ch-FIN 2024 | 2024 |
| Koykka, P2368 | 0-1 | Sipila, V2410 | TCh-FIN 2020-22 | 2022 |
| Sipila, V2410 | ½-½ | Koykka, P2346 | ch-FIN 2022 | 2022 |
| Koykka, P2399 | 1-0 | Sipila, V2410 | ch-FIN 2019 | 2019 |
| Koykka, P2345 | 1-0 | Sipila, V2383 | ch-FIN 2018 | 2018 |
| Koykka, P2327 | 0-1 | Sipila, V2443 | ch-FIN 2016 | 2016 |