CChessStats

2025 NO Kalamatas Club Cup A

Round-RobinStandard

8 players participated in this 7-round tournament, held from 26 Oct 2025 to 14 Dec 2025 in Kalamata, Greece. 3 federations represented. Top 10 Elo average was 1510, and top seed was Heinz Matitschka (🇩🇪 GER, 1925).

Petros Diamanteas (🇬🇷 GRE, 1911) won with 5.5/7, ahead of Heinz Matitschka (5.5) and Aikaterini Aleiferi (4.0). Diamanteas shared the lead from round 6, winning on tie-break.

The biggest upset came in round 6: Aikaterini Aleiferi (1607) beat Heinz Matitschka (1925), a +318-point gap.

Location
🇬🇷Kalamata, Greece
Dates
26 Oct 2025 → 14 Dec 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Round-robin · 7 rounds
Top seed
🇩🇪Heinz Matitschka1925
Avg top 10
1,510
Participants
8
Federations · 3 represented
🇬🇷Greece×6
🇺🇦Ukraine×1
🇩🇪Germany×1
Top 3

How it unfolded

Top 8 · 7 rounds

Heinz Matitschka led from R2 onwards, the runner-up race stayed tight.

Co-leaders
3
1
1
1
1
2
2
#1#2#4#8R1R2R3R4R5R6R7
R2–R7 · LEAD HELD

Heinz Matitschka held the sole lead from R2 through R7 without losing it.

R2 · HEAD-TO-HEAD · WINNER VS 2ND

Heinz Matitschka drew with Petros Diamanteas (White).

WIN STREAKS · 3 top finishers

Heinz Matitschka 3 wins (R3–R5)Petros Diamanteas 3 wins (R3–R5)Aikaterini Aleiferi 3 wins (R4–R6)

Cross-table

#PlayerElo12345678PtsSBBhΔ EloPerf
2🇬🇷Diamanteas, Petros1911*½1½111½5.517.2522.5-1.21887
1🇩🇪Matitschka, Heinz1925½*0111115.515.7522.5-3.41885
4🇬🇷Aleiferi, Aikaterini160701*001114.012.0024.0+20.21745
3🇬🇷Kelesis, Konstantinos1628½01*10013.511.2524.5+53.21799
5🇬🇷Katsilieris, Pavlos Alexandros16550010*1½½3.08.7525.0+3.21680
7🇬🇷Labrakopoulos, Alexandros175000010*113.07.0025.0-25.01596
6🇬🇷Katsaounias, Panagiotis00001½0*½2.05.7526.00.01567
8🇺🇦Onipko, Kateryna1601½000½0½*1.55.2526.5-37.61473

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets