CChessStats

Allerod Efteraar 2025 - 5

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 1279, and top seed was Troels Jacobsen (🇩🇰 DEN, 1659).

Troels Jacobsen (🇩🇰 DEN, 1659) won with 5.0/5, ahead of Sergi Mendez (3.5) and Martin Siebenhaar (3.0). Jacobsen won solo starting round 3.

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
🇩🇰Troels Jacobsen1659
Avg top 10
1,279
Participants
6
Federations · 1 represented
🇩🇰Denmark×6
Top 3

How it unfolded

Top 6 · 5 rounds

Troels Jacobsen led from R3 onwards, the runner-up race stayed tight.

Co-leaders
3
2
1
1
1
#1#2#3#6R1R2R3R4R5
Jacobsen#1Mendez#4Siebenhaar#2Hansen#3Rand#5Arrhenius#6
R3–R5 · LEAD HELD

Troels Jacobsen never relinquished the lead after R3; final gap +1.5 over the runner-up.

R4 · DECISIVE LEAD09 Oct

Troels Jacobsen opens a +1.5-point gap over the chasing pack (closest: Sergi Mendez); the title is out of reach before R5.

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Troels Jacobsen beat Sergi Mendez (White).

Cross-table

#PlayerElo123456PtsSBBhΔ EloPerf
1🇩🇰Jacobsen, Troels1659*111115.010.0010.0+23.62306
4🇩🇰Mendez, Sergi15250*1½113.55.2511.5+21.21633
2🇩🇰Siebenhaar, Martin000*1113.03.5012.00.01556
3🇩🇰Hansen, Rudy Neergaard15360½0*112.52.7512.5+10.01632
5🇩🇰Rand, Svend Aage15130000*11.00.0014.0-16.81349
6🇩🇰Arrhenius, Jan144300000*0.00.0015.0-27.4760

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers