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Akaan Shakin viikonlopputurnaus Ryhma B

Open SwissStandard

20 players participated in this 5-round tournament, held from 20 Sept 2025 to 21 Sept 2025 in Akaa, Finland. 4 federations represented. Top 10 Elo average was 1863, and top seed was Harri Mikkonen (🇫🇮 FIN, 1934).

Matti Helmisola (🇫🇮 FIN, 1868) won with 4.0/5, ahead of Henri Nikander (3.5) and Pauliina Pelander (3.0). Helmisola won solo starting round 4.

The biggest upset came in round 5: Risto Eerikainen (1767) beat Jarkko Toropainen (1885), a +118-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
🇫🇮Harri Mikkonen1934
Avg top 10
1,863
Participants
20
Federations · 4 represented
🇫🇮Finland×17
🇳🇬Nigeria×1
🇪🇪Estonia×1
🇮🇹Italy×1
Top 3

How it unfolded

Top 6 · 5 rounds

Matti Helmisola led from R4; +0.5-point edge over the runner-up.

Co-leaders
20
6
2
1
1
1.52.545R1R2R3R4R5
R4–R5 · LEAD HELD

Matti Helmisola held the sole lead from R4 through R5 without losing it.

R2–R5 · WIN STREAK

Matti Helmisola won 4 in a row (R2–R5).

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Helmisola, Matti1868FINF+17B+11N+10B+7N4.07.07.07.002557+21.2
2Nikander, Henri1860FINF+19B+15B=9N+6B3.56.06.05.002149+49.2
3Pelander, Pauliina1856FINF=7B=4N+12B+16N3.08.08.05.502071+15.4
4Modanese, Augusto1839ITAF=6N=3B+18N+15B3.07.57.54.752038+20.4
5Jogi, Henry1791ESTF=8B=7N+15N+9B3.07.07.05.002121+49.6
6Lehtela, Antti1805FINF=4B+16N+8B−2N2.59.59.54.501932+13.8
7Uusitalo, Kari0FINF=3N=5B+19N−1B2.010.510.53.5018200.0
8Siurola, Aapo1861FINF=5N=9B−6N+13B2.09.59.54.501845-4.0
9Pohjala, Ilari1849FINF+16B=8N=2B−5N2.09.59.53.751825-2.4
10Tanttari, Jaakko1841FINF−15N+14B−1N+19B2.07.57.52.501793-10.4
11Rockas, Elias1692FINF+20N−1B−13N+17B2.07.57.51.501825+27.6
12Eerikainen, Risto1767FINF−14N+17B−3N+18B2.07.07.02.001796+3.0
13Mikkonen, Harri1934FINF=18N=20B+11B−8N2.05.55.52.751800-14.0
14Matiusenko, Anna1703FINF+12B−10N−16B+20N2.05.55.52.501789+19.2
15Backman, Aaron1834FINF+10B−2N−5B−4N1.011.511.52.001640-20.0
16Nousiainen, Roni1788FINF−9N−6B+14N−3B1.09.59.52.001610-37.2
17Brade, Henry1739FINF−1N−12N+20B−11N1.08.58.50.501579-16.6
18Toropainen, Jarkko1885FINF=13B=19N−4B−12N1.07.57.51.251633-52.4
19BENSON, Olorundunwo Caleb1762NGRF−2N=18B−7B−10N0.58.58.50.501589-24.4
20Olden, Aleksi1760FINF−11B=13N−17N−14B0.57.07.01.001445-58.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
Akaan Shakin viikonlopputurnaus Ryhma B (2025) — Akaa, Finland | Chess Tournament Results | ChessStats