Akaan Shakin viikonlopputurnaus Group A
18 players participated in this 5-round tournament, held from 20 Sept 2025 to 21 Sept 2025 in Akaa, Finland. 4 titled players from 2 federations. Top 10 Elo average was 2152, and top seed was Vilka Sipila (🇫🇮 FIN, IM, 2484).
Vilka Sipila (🇫🇮 FIN, IM, 2484) won with 4.0/5, ahead of Pessi Heino (3.5) and Johanna Paasikangas (3.0). Sipila broke clear in the final round.
The biggest upset came in round 5: Ari Peuhu (1933) beat Aarni Odner (2097), a +164-point gap.
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How it unfolded
Top 6 · 5 roundsIM Vilka Sipila led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
IM Vilka Sipila held the sole lead from R5 through R5 without losing it.
IM Vilka Sipila 4 wins (R2–R5)Ari Peuhu 3 wins (R3–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1IMVilka Sipila | * | — | — | — |
| 2CMPessi Heino | — | * | — | 1 |
| 3Ari Peuhu | — | — | * | 0 |
| 4FMJohanna Paasikangas | — | 0 | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sipila, VilkaIM | 2484 | FIN | F | +10B | +6N | +9B | +4N | 4.0 | 9.0 | 9.0 | 9.00 | 2968 | +5.7 |
| 2 | Heino, PessiCM | 2183 | FIN | F | +16B | +3N | =6B | +7N | 3.5 | 9.0 | 9.0 | 7.75 | 2427 | +41.2 |
| 3 | Paasikangas, JohannaFM | 2094 | FIN | F | +5N | −2B | +15N | +11B | 3.0 | 9.0 | 9.0 | 5.50 | 2170 | +8.0 |
| 4 | Kivimaki, Kasper | 2123 | FIN | F | +14B | +15N | +13B | −1B | 3.0 | 7.0 | 7.0 | 3.00 | 2299 | +16.8 |
| 5 | Peuhu, Ari | 1933 | FIN | F | −3B | +17N | +14B | +13N | 3.0 | 6.0 | 6.0 | 3.00 | 2217 | +29.8 |
| 6 | Niemi, KalleFM | 2302 | FIN | F | +13N | −1B | =2N | +12B | 2.5 | 10.0 | 10.0 | 4.25 | 2273 | -1.4 |
| 7 | Maki, Juha | 2018 | FIN | F | +8B | =9N | +10B | −2B | 2.5 | 9.5 | 9.5 | 5.00 | 2185 | +17.6 |
| 8 | Tiiva, Eetu | 1955 | FIN | F | −7N | +18B | +11N | =9N | 2.5 | 6.5 | 6.5 | 3.00 | 2087 | +13.8 |
| 9 | Asikainen, Eeli | 2162 | FIN | F | +12N | =7B | −1N | =8B | 2.0 | 10.5 | 10.5 | 4.00 | 2101 | -14.8 |
| 10 | Mashhadi Aghajan, Rayan | 2059 | FIN | F | −1N | =12B | −7N | +17B | 1.5 | 9.0 | 9.0 | 1.75 | 2019 | -14.8 |
| 11 | Rinne, Heini | 1854 | FIN | F | +17B | =14N | −8B | −3N | 1.5 | 7.5 | 7.5 | 1.50 | 1902 | +4.2 |
| 12 | Aropaltio, Tapio | 1946 | FIN | F | −9B | =10N | +16B | −6N | 1.5 | 7.0 | 7.0 | 1.75 | 2031 | +6.4 |
| 13 | Odner, Aarni | 2097 | FIN | F | −6B | +16N | −4N | −5B | 1.0 | 9.5 | 9.5 | 1.00 | 1884 | -44.8 |
| 14 | Piho, Juha | 1904 | FIN | F | −4N | =11B | −5N | =18B | 1.0 | 8.0 | 8.0 | 1.00 | 1768 | -14.2 |
| 15 | Vieira, Daniel | 1937 | USA | F | +18N | −4B | −3B | −16N | 1.0 | 7.5 | 7.5 | 0.50 | 1832 | -10.6 |
| 16 | Pihlajamaki, Seppo | 1949 | FIN | F | −2N | −13B | −12N | +15B | 1.0 | 7.0 | 7.0 | 1.00 | 1848 | -10.6 |
| 17 | Vorobyov, Radmir | 2002 | FIN | F | −11N | −5B | +18N | −10N | 1.0 | 6.5 | 6.5 | 0.50 | 1752 | -52.4 |
| 18 | Sissala, Jesse | 1934 | FIN | F | −15B | −8N | −17B | =14N | 0.5 | 5.5 | 5.5 | 0.50 | 1628 | -28.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Heino, PessiCMFIN+41.23.5 pts · #2
- 2Peuhu, AriFIN+29.83.0 pts · #3
- 3Maki, JuhaFIN+17.62.5 pts · #8
- 1Vorobyov, RadmirFIN-52.41.0 pts · #16
- 2Odner, AarniFIN-44.81.0 pts · #15
- 3Sissala, JesseFIN-28.40.5 pts · #18
- R5+164 Elo gap
- R2+148 Elo gap