| Jan 4, 2026 | Polkki | 1–0 | Sinitsyn | Round 7: Polkki, Eino - Sinitsyn, Anton | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Jan 4, 2026 | Odner | 1–0 | Polkki | Round 5: Odner, Aarni - Polkki, Eino | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jan 4, 2026 | Polkki | 1–0 | Sippola | Round 4: Polkki, Eino - Sippola, Sara-Olivia | Queen's Gambit Declined | |
| Jan 3, 2026 | Rintala | ½–½ | Polkki | Round 3: Rintala, Miliam - Polkki, Eino | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jan 3, 2026 | Polkki | ½–½ | Moisio | Round 2: Polkki, Eino - Moisio, Miska | Rat Defense: English Rat | |
| Jan 3, 2026 | Lappalainen | 0–1 | Polkki | Round 1: Lappalainen, Eemi - Polkki, Eino | Scotch Game: Malaniuk Variation | |
| Dec 14, 2025 | Kallunki | 0–1 | Polkki | Round 6: Kallunki, Karoliina - Polkki, Eino | Four Knights Game: Spanish Variation | |
| Jun 7, 2025 | Polkki | 0–1 | Ahola | Nuorten SM 2025, U20 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 6, 2025 | Vainikka | 0–1 | Polkki | Nuorten SM 2025, U20 | Indian Defense: Spielmann-Indian | |
| Jun 6, 2025 | Polkki | 1–0 | Kallunki | Nuorten SM 2025, U20 | Nimzo-Larsen Attack: Modern Variation | |
| Jun 5, 2025 | Irjala | 1–0 | Polkki | Nuorten SM 2025, U20 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jun 5, 2025 | Polkki | 1–0 | Pitkanen | Nuorten SM 2025, U20 | Nimzo-Indian Defense: St. Petersburg Variation | |
| May 7, 2025 | Sinitsyn | 1–0 | Polkki | Nuorten SM 2025, U20 | English Opening: King's English Variation, Reversed Sicilian | |
| Aug 28, 2022 | Polkki | 0–1 | Falkevall | Nordic Youth Chess Championships 2022: Class B - U17 | King's Indian Defense: Makogonov Variation | |
| Aug 28, 2022 | Vainikka | ½–½ | Polkki | Nordic Youth Chess Championships 2022: Class B - U17 | Catalan Opening: Closed | |
| Aug 27, 2022 | Polkki | ½–½ | Nielsen | Nordic Youth Chess Championships 2022: Class B - U17 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Aug 27, 2022 | Apol | ½–½ | Polkki | Nordic Youth Chess Championships 2022: Class B - U17 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Aug 26, 2022 | Polkki | 0–1 | Meskenas | Nordic Youth Chess Championships 2022: Class B - U17 | Grünfeld Defense: Three Knights Variation, Petrosian System | |
| Aug 26, 2022 | Briem | 1–0 | Polkki | Nordic Youth Chess Championships 2022: Class B - U17 | Catalan Opening: Closed | |
