Martti Haminan 70-vuotisjuhlaturnaus Group B
Open SwissStandard
14 players participated in this 4-round tournament, held from 16 Aug 2025 to 17 Aug 2025 in Lahti, Finland. Top 10 Elo average was 1916, and top seed was Mikko Tiilikainen (🇫🇮 FIN, 1959).
Seppo Pihlajamaki (🇫🇮 FIN, 1931) won with 3.0/4, ahead of Eetu Tiiva (2.5) and Oliver Nieminen (2.5). Pihlajamaki broke clear in the final round.
Location
🇫🇮Lahti, Finland
Dates
16 Aug 2025 → 17 Aug 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 roundsSeppo Pihlajamaki led from R4; +0.5-point edge over the runner-up.
Co-leaders
4
6
7
1
R4–R4 · LEAD HELD
Seppo Pihlajamaki 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 |
|---|---|---|---|---|
| 1Seppo Pihlajamaki | * | — | — | — |
| 2Anton Ojasuo | — | * | ½ | — |
| 3Viljami Kesanen | — | ½ | * | ½ |
| 4Eetu Ahola | — | — | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Pihlajamaki, Seppo | 1931 | FIN | =8N | +12B | =2N | +9B | 3.0 | 6.5 | 7.5 | 5.25 | 2105 | +18.0 |
| 2 | Tiiva, Eetu | 1951 | FIN | +14B | =3N | =1B | =5N | 2.5 | 8.0 | 8.5 | 4.50 | 1990 | +3.8 |
| 3 | Nieminen, Oliver | 1878 | FIN | +7N | =2B | =9N | =4B | 2.5 | 7.5 | 9.5 | 6.00 | 2012 | +28.4 |
| 4 | Kesanen, Viljami | 1867 | FIN | =6B | +13N | =5B | =3N | 2.5 | 7.5 | 8.5 | 4.75 | 1986 | +12.8 |
| 5 | Ahola, Eetu | 1898 | FIN | +11N | =9B | =4N | =2B | 2.5 | 7.0 | 8.5 | 5.00 | 1993 | +10.0 |
| 6 | Ojasuo, Anton | 1936 | FIN | =4N | =8B | =7N | +12B | 2.5 | 7.0 | 8.0 | 4.50 | 1995 | +6.0 |
| 7 | Sipila, Markku | 1945 | FIN | −3B | +14N | =6B | +8B | 2.5 | 7.0 | 7.5 | 3.75 | 1974 | +2.8 |
| 8 | Pohjala, Ilari | 1830 | FIN | =1B | =6N | +10B | −7N | 2.0 | 8.0 | 10.0 | 4.75 | 1917 | +18.8 |
| 9 | Piho, Juha | 1906 | FIN | +10B | =5N | =3B | −1N | 2.0 | 8.0 | 10.0 | 4.50 | 1890 | -1.8 |
| 10 | Westren-Doll, Jan | 1854 | FIN | −9N | +11B | −8N | +13N | 2.0 | 5.5 | 6.5 | 2.50 | 1863 | +2.0 |
| 11 | Pelander, Pauliina | 1883 | FIN | −5B | −10N | =13B | +14N | 1.5 | 5.5 | 6.0 | 1.00 | 1782 | -9.8 |
| 12 | Tiilikainen, Mikko | 1959 | FIN | =13B | −1N | =14B | −6N | 1.0 | 6.5 | 7.0 | 0.75 | 1705 | -26.8 |
| 13 | Backman, Aaron | 1850 | FIN | =12N | −4B | =11N | −10B | 1.0 | 6.0 | 7.0 | 1.25 | 1694 | -16.0 |
| 14 | Nikula, Mikko | 1873 | FIN | −2N | −7B | =12N | −11B | 0.5 | 6.5 | 7.5 | 0.50 | 1608 | -23.6 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Nieminen, OliverFIN+28.42.5 pts · #7
- 2Pohjala, IlariFIN+18.82.0 pts · #10
- 3Pihlajamaki, SeppoFIN+18.03.0 pts · #1
Top rating losers
- 1Tiilikainen, MikkoFIN-26.81.0 pts · #12
- 2Nikula, MikkoFIN-23.60.5 pts · #14
- 3Backman, AaronFIN-16.01.0 pts · #13