CChessStats

Allerod Efteraar 2025 - 4

Round-RobinStandard

6 players participated in this 5-round tournament, held from 04 Sept 2025 to 09 Oct 2025 in Allerod, Denmark. Top 10 Elo average was 1680, and top seed was Birger Hagstrom (🇩🇰 DEN, 1801).

Birger Hagstrom (🇩🇰 DEN, 1801) won with 4.5/5, ahead of Ole Rasmussen (3.0) and Finn Hoffmann (2.5).

The biggest upset came in round 4: Rafal Czapp (1519) beat John So (1646), a +127-point gap.

Location
🇩🇰Allerod, Denmark
Dates
04 Sept 2025 → 09 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Round-robin · 5 rounds
Top seed
🇩🇰Birger Hagstrom1801
Avg top 10
1,680
Participants
6
Federations · 1 represented
🇩🇰Denmark×6
Top 3

How it unfolded

Top 6 · 5 rounds

Birger Hagstrom led from R3 onwards, the runner-up race stayed tight.

Co-leaders
2
1
1
1
1
#1#2#3#6R1R2R3R4R5Hagstrom takes lead
Hagstrom#1Rasmussen#2Hoffmann#3Czapp#4So#5Hagstrom#6
R3 · LEADER CHANGE25 Sept

Birger Hagstrom takes the sole lead (2.5/3).

R4 · DECISIVE LEAD09 Oct

Birger Hagstrom opens a +1.5-point gap over the chasing pack (closest: Ole Rasmussen); the title is out of reach before R5.

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Birger Hagstrom beat Ole Rasmussen (White).

Cross-table

#PlayerElo123456PtsSBBhΔ EloPerf
1🇩🇰Hagstrom, Birger1801*11½114.59.5010.5+20.62016
2🇩🇰Rasmussen, Ole17020*01113.05.0012.0+6.01742
3🇩🇰Hoffmann, Finn165301*½012.55.0012.5+3.81680
4🇩🇰Czapp, Rafal1519½0½*102.05.5013.0+35.21640
5🇩🇰So, John16460010*12.03.5013.0-5.21609
6🇩🇰Hagstrom, Steen175900010*1.02.0014.0-42.81419

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets