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Harstad sjakklubbs klubbmesterskap i langsjakk hosten 2025 A

Round-RobinStandard

6 players participated in this 5-round tournament, held from 29 Nov 2025 to 11 Dec 2025 in Harstad, Norway. Top 10 Elo average was 1430, and top seed was Nils-Jakob Schjelderup (🇳🇴 NOR, 1802).

Nils-Jakob Schjelderup (🇳🇴 NOR, 1802) won with 5.0/5, ahead of Pal Strande Mathisen (3.5) and Robert Jakobsen (3.0). Schjelderup won solo starting round 2.

Location
🇳🇴Harstad, Norway
Dates
29 Nov 2025 → 11 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 5 rounds
Top seed
🇳🇴Nils-Jakob Schjelderup1802
Avg top 10
1,430
Participants
6
Federations · 1 represented
🇳🇴Norway×6
Top 3

How it unfolded

Top 6 · 5 rounds

Nils-Jakob Schjelderup led from R2 onwards, the runner-up race stayed tight.

Co-leaders
2
1
1
1
1
#1#2#3#6R1R2R3R4R5
R2–R5 · LEAD HELD

Nils-Jakob Schjelderup never relinquished the lead after R2; final gap +1.5 over the runner-up.

R4 · DECISIVE LEAD10 Dec

Nils-Jakob Schjelderup opens a +1.5-point gap over the chasing pack (closest: Pal Strande Mathisen); the title is out of reach before R5.

R2 · HEAD-TO-HEAD · WINNER VS 2ND

Nils-Jakob Schjelderup beat Pal Strande Mathisen (Black).

Cross-table

#PlayerElo123456PtsSBBhΔ EloPerf
1🇳🇴Schjelderup, Nils-Jakob1802*111115.010.0010.0+28.42494
2🇳🇴Mathisen, Pal Strande17240*1½113.55.5011.5+9.01809
3🇳🇴Jakobsen, Robert176500*1113.03.5012.0-6.81704
4🇳🇴Mela, Ronny S16780½0*½12.02.5013.0-14.81532
5🇳🇴Ryseth, Alf1610000½*11.51.0013.5-15.81420
6🇳🇴Bolgen, Magne000000*0.00.0015.00.0916

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Harstad sjakklubbs klubbmesterskap i langsjakk hosten 2025 A — Harstad, Norway | Chess Tournament Results | ChessStats