CChessStats

Akaan Shakin viikonlopputurnaus Group A

Open SwissStandard

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.

Location
🇫🇮Akaa, Finland
Dates
20 Sept 2025 → 21 Sept 2025
Time control
Standard: 90 minutes for game with 30 seconds delay from move 1
System
Swiss · 5 rounds
Top seed
🇫🇮IMVilka Sipila2484
Avg top 10
2,152
Participants
18
Titled players · 4
IM×1
FM×2
CM×1
Federations · 2 represented
🇫🇮Finland×17
🇺🇸United States of America×1
Top 3

How it unfolded

Top 6 · 5 rounds

IM 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.

Co-leaders
18
9
3
2
1
1.52.545R1R2R3R4R5
R5–R5 · LEAD HELD

IM Vilka Sipila held the sole lead from R5 through R5 without losing it.

WIN STREAKS · 2 top finishers

IM Vilka Sipila 4 wins (R2–R5)Ari Peuhu 3 wins (R3–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1IMVilka Sipila*
2CMPessi Heino*
1
3Ari Peuhu*
0
4FMJohanna Paasikangas
0
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Sipila, VilkaIM2484FINF+10B+6N+9B+4N4.09.09.09.002968+5.7
2Heino, PessiCM2183FINF+16B+3N=6B+7N3.59.09.07.752427+41.2
3Paasikangas, JohannaFM2094FINF+5N2B+15N+11B3.09.09.05.502170+8.0
4Kivimaki, Kasper2123FINF+14B+15N+13B1B3.07.07.03.002299+16.8
5Peuhu, Ari1933FINF3B+17N+14B+13N3.06.06.03.002217+29.8
6Niemi, KalleFM2302FINF+13N1B=2N+12B2.510.010.04.252273-1.4
7Maki, Juha2018FINF+8B=9N+10B2B2.59.59.55.002185+17.6
8Tiiva, Eetu1955FINF7N+18B+11N=9N2.56.56.53.002087+13.8
9Asikainen, Eeli2162FINF+12N=7B1N=8B2.010.510.54.002101-14.8
10Mashhadi Aghajan, Rayan2059FINF1N=12B7N+17B1.59.09.01.752019-14.8
11Rinne, Heini1854FINF+17B=14N8B3N1.57.57.51.501902+4.2
12Aropaltio, Tapio1946FINF9B=10N+16B6N1.57.07.01.752031+6.4
13Odner, Aarni2097FINF6B+16N4N5B1.09.59.51.001884-44.8
14Piho, Juha1904FINF4N=11B5N=18B1.08.08.01.001768-14.2
15Vieira, Daniel1937USAF+18N4B3B16N1.07.57.50.501832-10.6
16Pihlajamaki, Seppo1949FINF2N13B12N+15B1.07.07.01.001848-10.6
17Vorobyov, Radmir2002FINF11N5B+18N10N1.06.56.50.501752-52.4
18Sissala, Jesse1934FINF15B8N17B=14N0.55.55.50.501628-28.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets