CChessStats

OSS Klubbmesterskap 2025 A R 3-4

Round-RobinStandard

8 players participated in this 4-round tournament, held from 09 Oct 2025 to 16 Oct 2025 in Oslo, Norway. 5 titled players. Top 10 Elo average was 2237, and top seed was Semen Mitusov (🇳🇴 NOR, IM, 2468).

Havard Haug (🇳🇴 NOR, FM, 2373) won with 2.0/4, ahead of Peder Marcus Aamodt (1.0) and Semen Mitusov (1.0). Haug broke clear in the final round.

Location
🇳🇴Oslo, Norway
Dates
09 Oct 2025 → 16 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 4 rounds
Top seed
🇳🇴IMSemen Mitusov2468
Avg top 10
2,237
Participants
8
Titled players · 5
IM×1
FM×3
WGM×1
Federations · 1 represented
🇳🇴Norway×8
Top 3

How it unfolded

Top 8 · 4 rounds

FM Havard Haug led from R4 onwards, the runner-up race stayed tight.

Co-leaders
8
8
3
1
#1#2#4#8R1R2R3R4
Haug#1Aamodt#2Ramirez Garrastacho#3Mitusov#4Bech#5Moen#6Koskela#7Khoo-Thwe#8
R4–R4 · LEAD HELD

FM Havard Haug never relinquished the lead after R4; final gap +1.0 over the runner-up.

Cross-table

#PlayerElo12345678PtsSBBhΔ EloPerf
1🇳🇴FMHaug, Havard2373*———1—1—2.00.500.5+8.62941
2🇳🇴Aamodt, Peder Marcus2183—*0——1——1.00.501.5+12.82349
4🇳🇴IMMitusov, Semen2468—1*—————1.01.001.0+1.93019
3🇳🇴Ramirez Garrastacho, Manuel2125———*———11.00.000.0+10.82970
5🇳🇴Bech, Havard Eriksen20970———*½——0.50.252.5+7.62119
6🇳🇴FMMoen, Ole Christian2239—0——½*——0.50.251.5-15.81920
8🇳🇴FMKhoo-Thwe, Louis22330—————*—0.00.002.0-13.61596
7🇳🇴WGMKoskela, Niina2180———0———*0.00.001.0-10.81344

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers