CChessStats

Eero Patola 75 v avoin eloturnaus C

Open SwissStandard

16 players participated in this 4-round tournament, held from 08 Nov 2025 to 09 Nov 2025 in Helsinki, Finland. Top 10 Elo average was 1708, and top seed was Leevi Sillanpaa (🇫🇮 FIN, 1809).

Leevi Sillanpaa (🇫🇮 FIN, 1809) won with 3.5/4, ahead of Alex Airamaa (3.0) and Stefan Wahlback (3.0). Sillanpaa clinched sole first place in the final round.

The biggest upset came in round 1: Archishman Das (1604) beat Valtteri Nokso-Koivisto (1753), a +149-point gap.

Location
🇫🇮Helsinki, Finland
Dates
08 Nov 2025 → 09 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 4 rounds
Top seed
🇫🇮Leevi Sillanpaa1809
Avg top 10
1,708
Participants
16
Federations · 1 represented
🇫🇮Finland×16
Top 3
  • 🥇
    🇫🇮FIN·1809
    3.5pts·1952perf+18.8
  • 🥈
    🇫🇮FIN·1657
    3.0pts·1829perf+27.6
  • 🥉
    🇫🇮FIN·1698
    3.0pts·1849perf+15.4

How it unfolded

Top 6 · 4 rounds

Leevi Sillanpaa led from R4; +0.5-point edge over the runner-up.

Co-leaders
8
2
1
1
1234R1R2R3R4Sillanpaa takes lead
R4 · LEADER CHANGE09 Nov

Leevi Sillanpaa takes the sole lead (3.5/4).

R1–R3 · WIN STREAK

Alex Airamaa won 3 in a row (R1–R3).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Leevi Sillanpaa*—
1
½
2Stefan Wahlback—*
0
1
3Alex Airamaa
0
1
*—
4Veikko Kiili
½
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4PtsBu C1BuSBPerfΔ
1Sillanpaa, Leevi1809FIN+13N=4B+10N+2B3.57.08.57.251952+18.8
2Airamaa, Alex1657FIN+11B+8N+3B−1N3.08.510.06.501829+27.6
3Wahlback, Stefan1698FIN+9N+6B−2N+4B3.08.010.07.001849+15.4
4Kiili, Veikko1655FIN+15B=1N+5B−3N2.59.010.05.251826+36.8
5Koivumaki, Marko1719FIN+12N=10B−4N+8B2.56.07.54.251766+4.6
6Yadav, Neev1667FIN+14N−3N=11B+10B2.56.07.53.751712+4.8
7Nokso-Koivisto, Valtteri1753FIN−8B=12N+15B+11N2.55.06.03.251666-14.4
8Archishman Das1604FIN+7N−2B+9N−5N2.08.010.04.501694+19.6
9Ervasti, Kalle1646FIN−3B+16N−8B+15N2.06.06.01.001649+0.8
10Turunen, Tiina1725FIN+16B=5N−1B−6N1.58.58.51.251612-12.8
11Schultz, Juho0FIN−2N+14B=6N−7B1.58.09.52.7514190.0
12Miikkulainen, Jouko1700FIN−5B=7B=13N=14B1.56.58.02.751544-7.8
13Tamminen, Atte0FIN−1B−15N=12B+16N1.56.06.00.7516140.0
14Virkkala, Vilho0FIN−6B−11N+16B=12N1.55.55.50.7516550.0
15Toivonen, Markku1696FIN−4N+13B−7N−9B1.07.08.51.50885-31.0
16Tiensuu, Seppo1600FIN−10N−9B−14N−13B0.05.06.50.00886-15.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
Eero Patola 75 v avoin eloturnaus C (2025) — Helsinki, Finland | Chess Tournament Results | ChessStats