CChessStats

OSS KM 2026 R345

Open SwissStandard

9 players participated in this 5-round tournament, held from 05 Mar 2026 to 19 Mar 2026 in Oskarshamn, Sweden. Top 10 Elo average was 1588, and top seed was Lukas Spang (🇸🇪 SWE, 1965).

Stefan Fransson (🇸🇪 SWE, 1820) won with 2.0/5, ahead of Noel Karjalainen (2.0) and Lukas Spang (2.0). Fransson clinched sole first place in the final round.

The biggest upset came in round 4: Noel Karjalainen (1723) beat Roger Jakobsson (1882), a +159-point gap.

Location
🇸🇪Oskarshamn, Sweden
Dates
05 Mar 2026 → 19 Mar 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 5 rounds
Top seed
🇸🇪Lukas Spang1965
Avg top 10
1,588
Participants
9
Federations · 1 represented
🇸🇪Sweden×8
Top 3

How it unfolded

Top 6 · 5 rounds

Tight race until R5; 3 players tied at 2.0/5, decided on Buchholz. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
11
9
3
2
1
1.52.545R1R2R3R4R5
R5–R5 · LEAD HELD

Stefan Fransson held the sole lead from R5 through R5 without losing it.

R5 · TIEBREAK CLUSTER

3 players finish on 2.0/5. Fransson takes the title on Buchholz Cut1 (1.5).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Stefan Fransson*
1
2Lukas Spang*
3Noel Karjalainen*
4Stefan Zenker
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Fransson, Stefan1820SWEFFF+5B+4N2.01.51.51.502588+18.2
2Karjalainen, Noel1723SWEFF+9N+6N2.00.50.50.502684+30.0
3Spang, Lukas1965SWEFF+8B+7N2.00.00.00.002461+5.6
4Zenker, Stefan1729SWEFF+7BF1B1.02.02.00.001727-1.2
5Milojevic, Sasa1812SWEFF=6B1N0.52.52.50.251661-8.6
6Jakobsson, Roger1882SWEFF=5N2B0.52.52.50.251568-16.6
7Junell, Harri1672SWEFF4N3B0.03.03.00.001061-18.4
8Johansson, Robert 19961692SWEFF3N0.02.02.00.001173-3.2
9FIDE 5630055220FF2B0.02.02.00.008950.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets