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
Federations · 1 represented
🇫🇮Finland×14
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 4 roundsMiika Hakkarainen led from R4; +0.5-point edge over the runner-up.
Co-leaders
9
2
5
1
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| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Miika Hakkarainen | * | — | — | ½ |
| 2Jani Vahasoyrinki | — | * | — | ½ |
| 3FIDE 525014 | — | — | * | — |
| 4Tommy Sjoskog | ½ | ½ | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Hakkarainen, Miika | 0 | FIN | +11N | +?B | =2N | +5B | 3.5 | 7.0 | 7.0 | 5.50 | 1775 | 0.0 |
| 2 | Sjoskog, Tommy | 1659 | FIN | +15B | +6N | =1B | =3N | 3.0 | 9.0 | 10.0 | 6.75 | 1641 | -0.4 |
| 3 | Vahasoyrinki, Jani | 1647 | FIN | =10N | +11B | +7N | =2B | 3.0 | 7.0 | 8.5 | 6.25 | 2029 | +58.0 |
| 4 | FIDE 525014 | 0 | — | +14N | =5B | +10N | =?B | 3.0 | 5.0 | 5.0 | 3.75 | 1680 | 0.0 |
| 5 | Vavuli, Pasi | 1740 | FIN | +8B | =4N | +12B | −1N | 2.5 | 9.0 | 10.5 | 5.50 | 2387 | +23.6 |
| 6 | Torrkulla, Seve | 0 | FIN | +?N | −2B | =8N | +10B | 2.5 | 7.0 | 7.0 | 2.75 | 1579 | 0.0 |
| 7 | Rintakoski, Pentti | 1803 | FIN | +13B | =12N | −3B | +9N | 2.5 | 6.5 | 8.0 | 4.25 | 1415 | -20.0 |
| 8 | Maensivu, Martti | 1599 | FIN | −5N | +14B | =6B | +12N | 2.5 | 6.5 | 7.5 | 3.75 | 1657 | +3.2 |
| 9 | FIDE 525022 | 0 | — | +?N | −10B | +?N | −7B | 2.0 | 4.0 | 4.0 | 0.00 | 1712 | 0.0 |
| 10 | FIDE 525006 | 0 | — | =3B | +9N | −4B | −6N | 1.5 | 8.5 | 10.5 | 3.50 | 1641 | 0.0 |
| 11 | Seilonen, Mikko | 1810 | FIN | −1B | −3N | +14B | =13N | 1.5 | 8.0 | 9.0 | 1.75 | 841 | -14.4 |
| 12 | Lehtonen, Jari | 1574 | FIN | +17N | =7B | −5N | −8B | 1.5 | 7.5 | 7.5 | 1.25 | 1593 | +2.0 |
| 13 | Rintala, Iivo | 0 | FIN | −7N | +17B | −?N | =11B | 1.5 | 4.0 | 4.0 | 0.75 | 1582 | 0.0 |
| 14 | Saari, Taneli | 0 | FIN | −4B | −8N | −11N | +17B | 1.0 | 7.0 | 7.0 | 0.00 | 1537 | 0.0 |
| 15 | Haajamo, Matti | 0 | FIN | −2N | +?B | −?N | −?B | 1.0 | 3.0 | 3.0 | 0.00 | 1461 | 0.0 |
| 16 | Maensivu, Matti | 0 | FIN | −?N | −?B | +17N | −?B | 1.0 | 0.0 | 0.0 | 0.00 | 1435 | 0.0 |
| 17 | Kiviaho, Pauli | 1579 | FIN | −12B | −13N | −16B | −14N | 0.0 | 4.0 | 5.0 | 0.00 | 774 | -10.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Vahasoyrinki, JaniFIN+58.03.0 pts · #1
- 2Vavuli, PasiFIN+23.62.5 pts · #3
- 3Maensivu, MarttiFIN+3.22.5 pts · #7
Top rating losers
- 1Rintakoski, PenttiFIN-20.02.5 pts · #15
- 2Seilonen, MikkoFIN-14.41.5 pts · #16
- 3Kiviaho, PauliFIN-10.20.0 pts · #17
Biggest upsets
- R2+163 Elo gap
- R3+156 Elo gap