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HSK Klubturnier 2025 B1-Gruppe Oktober

Round-RobinStandard

10 players participated in this 7-round tournament, held from 02 Oct 2025 to 30 Oct 2025 in Hamburg, Germany. 2 federations represented. Top 10 Elo average was 1848, and top seed was Kai Mueller (🇩🇪 GER, 1952).

Dustin Tennessee Opasiak (🇵🇱 POL, 1706) won with 3.0/7, ahead of Leonard Muecke (2.0) and Bendix Perschk (2.0). Opasiak shared the lead from round 6 and broke clear in the final round.

The biggest upset came in round 6: Dustin Tennessee Opasiak (1706) beat Nikolai Rudenko (1907), a +201-point gap.

Location
🇩🇪Hamburg, Germany
Dates
02 Oct 2025 → 30 Oct 2025
Time control
Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1
System
Round-robin · 7 rounds
Top seed
🇩🇪Kai Mueller1952
Avg top 10
1,848
Participants
10
Federations · 2 represented
🇩🇪Germany×9
🇵🇱Poland×1
Top 3

How it unfolded

Top 10 · 7 rounds

Dustin Tennessee Opasiak led from R7 onwards, the runner-up race stayed tight. Title race converged from 2 co-leaders at R4 to 1 by R7.

Co-leaders
1
3
1
2
1
2
1
#1#2#5#10R1R2R3R4R5R6R7Muecke takes leadOpasiak takes lead
R5 · LEADER CHANGE23 Oct

Leonard Muecke takes the sole lead (2.0/5).

R1 · HEAD-TO-HEAD · WINNER VS 2ND

Dustin Tennessee Opasiak lost to Bendix Perschk (Black).

Cross-table

#PlayerElo12345678910PtsSBBhΔ EloPerf
1🇵🇱Opasiak, Dustin Tennessee1706*00—11——1—3.03.007.0+28.61919
3🇩🇪Muecke, Leonard19261*—0——½½——2.04.007.0-10.61823
2🇩🇪Perschk, Bendix17631—*———1———2.04.504.5+18.02527
4🇩🇪Cramer, Philipp1911—1—*———1——2.02.502.5+21.02728
6🇩🇪Rudenko, Nikolai19070———*½——1—1.50.754.5-10.01782
7🇩🇪Wolfram, Tom18560———½*———11.50.754.50.01855
5🇩🇪Busch, Jonathan Luis1747—½0———*—1—1.51.004.0+12.01825
8🇩🇪Weisz, Michael1929—½—0———*——0.51.004.0-21.21726
10🇩🇪Tscherepanov, Leon17850———0—0—*—0.00.006.0-29.8987
9🇩🇪Mueller, Kai1952—————0———*0.00.001.5-12.61056

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
HSK Klubturnier 2025 B1-Gruppe Oktober — Hamburg, Germany | Chess Tournament Results | ChessStats