Nuorten SM 2025 U20
7 players participated in this 7-round tournament, held from 05 Jun 2025 to 08 Jun 2025 in Valkeakoski, Finland. Top 10 Elo average was 1925, and top seed was Toni Vainikka (🇫🇮 FIN, 2072).
Toni Vainikka (🇫🇮 FIN, 2072) won with 4.5/7, ahead of Arttu Irjala (4.5) and Eetu Ahola (3.5). Vainikka shared the lead from round 6, winning on tie-break.
The biggest upset came in round 1: Eetu Ahola (1836) beat Anton Sinitsyn (2054), a +218-point gap.
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How it unfolded
Top 6 · 7 roundsTight race until R2; 2 players tied at 4.5/7, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
Arttu Irjala takes the sole lead (4.0/5).
2 players finish on 4.5/7. Vainikka takes the title on Buchholz Cut1 (16.5).
Toni Vainikka beat Arttu Irjala (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Toni Vainikka | * | 1 | 1 | 0 |
| 2Arttu Irjala | 0 | * | 1 | 1 |
| 3Eetu Ahola | 0 | 0 | * | 1 |
| 4Eino Polkki | 1 | 0 | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Vainikka, Toni | 2072 | FIN | +2B | +7N | F | −4B | +3N | +5B | =6N | 4.5 | 16.5 | 16.5 | 12.50 | 2097 | +5.4 |
| 2 | Irjala, Arttu | 1918 | FIN | −1N | +4B | +3N | +5B | +6N | F | =7B | 4.5 | 16.5 | 16.5 | 11.50 | 2120 | +32.2 |
| 3 | Ahola, Eetu | 1836 | FIN | +5B | =6N | −2B | +7N | −1B | +4N | F | 3.5 | 17.5 | 17.5 | 7.50 | 1997 | +26.4 |
| 4 | Polkki, Eino | 1983 | FIN | +6B | −2N | +7B | +1N | F | −3B | −5N | 3.0 | 18.0 | 18.0 | 7.50 | 1916 | -9.6 |
| 5 | Sinitsyn, Anton | 2054 | FIN | −3N | F | =6B | −2N | +7B | −1N | +4B | 2.5 | 18.5 | 18.5 | 5.00 | 1847 | -31.6 |
| 6 | Pitkanen, Artturi | 1961 | FIN | −4N | =3B | =5N | F | −2B | =7N | =1B | 2.0 | 19.0 | 19.0 | 5.75 | 1794 | -25.6 |
| 7 | Kallunki, Karoliina | 1653 | FIN | F | −1B | −4N | −3B | −5N | =6B | =2N | 1.0 | 20.0 | 20.0 | 3.25 | 1694 | +5.6 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Irjala, ArttuFIN+32.24.5 pts · #2
- 2Ahola, EetuFIN+26.43.5 pts · #3
- 3Kallunki, KaroliinaFIN+5.61.0 pts · #7
- 1Sinitsyn, AntonFIN-31.62.5 pts · #5
- 2Pitkanen, ArtturiFIN-25.62.0 pts · #6
- 3Polkki, EinoFIN-9.63.0 pts · #4
- R1+218 Elo gap
- R6+147 Elo gap
- R4+136 Elo gap