2025 NO Kalamatas Club Cup A
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.
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How it unfolded
Top 8 · 7 roundsHeinz Matitschka led from R2 onwards, the runner-up race stayed tight.
Heinz Matitschka held the sole lead from R2 through R7 without losing it.
Heinz Matitschka drew with Petros Diamanteas (White).
Heinz Matitschka 3 wins (R3–R5)Petros Diamanteas 3 wins (R3–R5)Aikaterini Aleiferi 3 wins (R4–R6)
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 🇬🇷Diamanteas, Petros | 1911 | * | ½ | 1 | ½ | 1 | 1 | 1 | ½ | 5.5 | 17.25 | 22.5 | -1.2 | 1887 |
| 1 | 🇩🇪Matitschka, Heinz | 1925 | ½ | * | 0 | 1 | 1 | 1 | 1 | 1 | 5.5 | 15.75 | 22.5 | -3.4 | 1885 |
| 4 | 🇬🇷Aleiferi, Aikaterini | 1607 | 0 | 1 | * | 0 | 0 | 1 | 1 | 1 | 4.0 | 12.00 | 24.0 | +20.2 | 1745 |
| 3 | 🇬🇷Kelesis, Konstantinos | 1628 | ½ | 0 | 1 | * | 1 | 0 | 0 | 1 | 3.5 | 11.25 | 24.5 | +53.2 | 1799 |
| 5 | 🇬🇷Katsilieris, Pavlos Alexandros | 1655 | 0 | 0 | 1 | 0 | * | 1 | ½ | ½ | 3.0 | 8.75 | 25.0 | +3.2 | 1680 |
| 7 | 🇬🇷Labrakopoulos, Alexandros | 1750 | 0 | 0 | 0 | 1 | 0 | * | 1 | 1 | 3.0 | 7.00 | 25.0 | -25.0 | 1596 |
| 6 | 🇬🇷Katsaounias, Panagiotis | 0 | 0 | 0 | 0 | 1 | ½ | 0 | * | ½ | 2.0 | 5.75 | 26.0 | 0.0 | 1567 |
| 8 | 🇺🇦Onipko, Kateryna | 1601 | ½ | 0 | 0 | 0 | ½ | 0 | ½ | * | 1.5 | 5.25 | 26.5 | -37.6 | 1473 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Kelesis, KonstantinosGRE+53.23.5 pts · #3
- 2Aleiferi, AikateriniGRE+20.24.0 pts · #4
- 3Katsilieris, Pavlos AlexandrosGRE+3.23.0 pts · #5
- 1Onipko, KaterynaUKR-37.61.5 pts · #8
- 2Labrakopoulos, AlexandrosGRE-25.03.0 pts · #7
- 3Matitschka, HeinzGER-3.45.5 pts · #1
- R6+318 Elo gap
- R1+143 Elo gap