CChessStats

OBRO Efteraar 2025 - 5 Round 1-4

Round-RobinStandard

6 players participated in this 4-round tournament, held from 20 Oct 2025 to 17 Nov 2025 in Copenhagen, Denmark. Top 10 Elo average was 1253, and top seed was Peter Kovacs (🇩🇰 DEN, 1603).

Alexander Korsbaek Norby (🇩🇰 DEN, 1400) won with 3.5/4, ahead of Henrik Preisler (2.5) and Tommy Andreasen (2.5). Norby broke clear in the final round.

The biggest upset came in round 3: Alexander Korsbaek Norby (1400) beat Henrik Preisler (1537), a +137-point gap.

Location
🇩🇰Copenhagen, Denmark
Dates
20 Oct 2025 → 17 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 4 rounds
Top seed
🇩🇰Peter Kovacs1603
Avg top 10
1,253
Participants
6
Federations · 1 represented
🇩🇰Denmark×5
Top 3

How it unfolded

Top 6 · 4 rounds

Alexander Korsbaek Norby led from R4 onwards, the runner-up race stayed tight.

Co-leaders
3
3
2
1
#1#2#3#6R1R2R3R4
Norby#1Preisler#2Andreasen#4Kovacs#3Munster#5#6
R4–R4 · LEAD HELD

Alexander Korsbaek Norby never relinquished the lead after R4; final gap +1.0 over the runner-up.

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Alexander Korsbaek Norby beat Henrik Preisler (White).

Cross-table

#PlayerElo123456PtsSBBhΔ EloPerf
1🇩🇰Norby, Alexander Korsbaek1400*1½—113.54.255.50.01544
2🇩🇰Preisler, Henrik15370*—1½12.52.256.0+17.61710
4🇩🇰Andreasen, Tommy1545½—*—112.52.254.0+13.62230
3🇩🇰Kovacs, Peter1603—0—*112.00.503.0-12.81484
5🇩🇰Munster, Ole14300½00*—0.51.2510.5-18.41289
6FIDE 148220300000—*0.00.0010.50.0762

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets