CChessStats

Vaasan ELO-kelpoinen viikonlopputurnaus B-ryhma

Open SwissStandard

17 players participated in this 4-round tournament, held from 13 Dec 2025 to 14 Dec 2025 in Vaasa, Finland. Top 10 Elo average was 1341, and top seed was Mikko Seilonen (🇫🇮 FIN, 1810).

Miika Hakkarainen (🇫🇮 FIN, 0) won with 3.5/4, ahead of Tommy Sjoskog (3.0) and Jani Vahasoyrinki (3.0). Hakkarainen clinched sole first place in the final round.

The biggest upset came in round 2: Jani Vahasoyrinki (1647) beat Mikko Seilonen (1810), a +163-point gap.

Location
🇫🇮Vaasa, Finland
Dates
13 Dec 2025 → 14 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 4 rounds
Top seed
🇫🇮Mikko Seilonen1810
Avg top 10
1,341
Participants
17
Federations · 1 represented
🇫🇮Finland×14
Top 3

How it unfolded

Top 6 · 4 rounds

Miika Hakkarainen led from R4; +0.5-point edge over the runner-up.

Co-leaders
9
2
5
1
1234R1R2R3R4
R4–R4 · LEAD HELD

Miika Hakkarainen held the sole lead from R4 through R4 without losing it.

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Miika Hakkarainen*
½
2Jani Vahasoyrinki*
½
3FIDE 525014*
4Tommy Sjoskog
½
½
*

Grille américaine

#PlayerEloFedR1R2R3R4PtsBu C1BuSBPerfΔ
1Hakkarainen, Miika0FIN+11N+?B=2N+5B3.57.07.05.5017750.0
2Sjoskog, Tommy1659FIN+15B+6N=1B=3N3.09.010.06.751641-0.4
3Vahasoyrinki, Jani1647FIN=10N+11B+7N=2B3.07.08.56.252029+58.0
4FIDE 5250140+14N=5B+10N=?B3.05.05.03.7516800.0
5Vavuli, Pasi1740FIN+8B=4N+12B1N2.59.010.55.502387+23.6
6Torrkulla, Seve0FIN+?N2B=8N+10B2.57.07.02.7515790.0
7Rintakoski, Pentti1803FIN+13B=12N3B+9N2.56.58.04.251415-20.0
8Maensivu, Martti1599FIN5N+14B=6B+12N2.56.57.53.751657+3.2
9FIDE 5250220+?N10B+?N7B2.04.04.00.0017120.0
10FIDE 5250060=3B+9N4B6N1.58.510.53.5016410.0
11Seilonen, Mikko1810FIN1B3N+14B=13N1.58.09.01.75841-14.4
12Lehtonen, Jari1574FIN+17N=7B5N8B1.57.57.51.251593+2.0
13Rintala, Iivo0FIN7N+17B?N=11B1.54.04.00.7515820.0
14Saari, Taneli0FIN4B8N11N+17B1.07.07.00.0015370.0
15Haajamo, Matti0FIN2N+?B?N?B1.03.03.00.0014610.0
16Maensivu, Matti0FIN?N?B+17N?B1.00.00.00.0014350.0
17Kiviaho, Pauli1579FIN12B13N16B14N0.04.05.00.00774-10.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets