Gambiitin elokelpoinen viikonlopputurnaus 2025 Group A
Open SwissStandard
16 players participated in this 4-round tournament, held from 04 Oct 2025 to 05 Oct 2025 in Helsinki, Finland. 3 federations represented. Top 10 Elo average was 1987, and top seed was Sameli Kaitaranta (🇫🇮 FIN, 2126).
Per Ertbjerg (🇩🇰 DEN, 1886) won with 3.5/4, ahead of Markus Kiili (3.0) and Risto Matikainen (3.0). Ertbjerg won solo starting round 3.
The biggest upset came in round 1: Aleksi Havusela (1917) beat Herman Hietanen (2107), a +190-point gap.
Location
🇫🇮Helsinki, Finland
Dates
04 Oct 2025 → 05 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 4 rounds
Federations · 3 represented
🇫🇮Finland×14
🇧🇬Bulgaria×1
🇩🇰Denmark×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 4 roundsPer Ertbjerg led from R3; +0.5-point edge over the runner-up.
Co-leaders
5
2
1
1
R3–R4 · LEAD HELD
Per Ertbjerg held the sole lead from R3 through R4 without losing it.
R1–R3 · WIN STREAK
Per Ertbjerg won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Per Ertbjerg | * | — | — | — |
| 2Markus Kiili | — | * | ½ | — |
| 3Risto Matikainen | — | ½ | * | — |
| 4Radmir Vorobyov | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ertbjerg, Per | 1886 | DEN | +16B | +10N | +7B | =5N | 3.5 | 6.0 | 6.5 | 5.25 | 2280 | +36.2 |
| 2 | Kiili, Markus | 2100 | FIN | =6N | =3B | +8N | +9B | 3.0 | 7.5 | 9.5 | 6.75 | 2123 | +3.0 |
| 3 | Matikainen, Risto | 1906 | FIN | +8B | =2N | =5B | +7N | 3.0 | 7.5 | 9.5 | 6.75 | 2183 | +57.6 |
| 4 | Vorobyov, Radmir | 1941 | FIN | +12B | −7N | +11B | +10N | 3.0 | 5.0 | 6.5 | 4.50 | 2081 | +28.8 |
| 5 | Seppala, Joni | 2070 | FIN | =14N | +13B | =3N | =1B | 2.5 | 8.0 | 9.0 | 5.25 | 2032 | -3.6 |
| 6 | Nurvet, Zhulin | 1834 | BUL | =2B | =11N | =10B | +14N | 2.5 | 6.0 | 7.0 | 4.00 | 2033 | +41.2 |
| 7 | Havusela, Aleksi | 1917 | FIN | +9N | +4B | −1N | −3B | 2.0 | 9.5 | 11.5 | 5.00 | 1960 | +8.8 |
| 8 | Pelander, Pauliina | 1871 | FIN | −3N | +14B | −2B | +16N | 2.0 | 7.0 | 7.5 | 1.50 | 1925 | +5.4 |
| 9 | Hietanen, Herman | 2107 | FIN | −7B | +16N | +12B | −2N | 2.0 | 6.5 | 7.0 | 2.00 | 1923 | -36.8 |
| 10 | Suominen, Antti | 1926 | FIN | +15N | −1B | =6N | −4B | 1.5 | 9.0 | 10.0 | 2.25 | 1783 | -16.4 |
| 11 | Piiroinen, Tero | 1895 | FIN | =13N | =6B | −4N | =15B | 1.5 | 7.0 | 8.0 | 2.50 | 1843 | -6.6 |
| 12 | Backman, Aaron | 1814 | FIN | −4N | +15B | −9N | =13B | 1.5 | 6.5 | 7.5 | 1.75 | 1911 | +7.8 |
| 13 | Kaitaranta, Sameli | 2126 | FIN | =11B | −5N | =14B | =12N | 1.5 | 5.5 | 6.5 | 2.00 | 1816 | -63.2 |
| 14 | Tanttari, Jaakko | 1830 | FIN | =5B | −8N | =13N | −6B | 1.0 | 7.0 | 8.5 | 2.00 | 1782 | -11.6 |
| 15 | Lehtela, Antti | 1819 | FIN | −10B | −12N | =16B | =11N | 1.0 | 4.5 | 5.0 | 1.00 | 1681 | -14.0 |
| 16 | Kumpulainen, Jari | 1861 | FIN | −1N | −9B | =15N | −8B | 0.5 | 7.5 | 8.5 | 0.50 | 1599 | -24.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Matikainen, RistoFIN+57.63.0 pts · #3
- 2Nurvet, ZhulinBUL+41.22.5 pts · #6
- 3Ertbjerg, PerDEN+36.23.5 pts · #1
Top rating losers
- 1Kaitaranta, SameliFIN-63.21.5 pts · #11
- 2Hietanen, HermanFIN-36.82.0 pts · #9
- 3Kumpulainen, JariFIN-24.20.5 pts · #16
Biggest upsets
- R1+190 Elo gap