7th Stamatopoulos Open 2025
Open SwissStandard
44 players participated in this 7-round tournament, held from 05 Nov 2025 to 17 Dec 2025 in Athens, Greece. 1 titled players. Top 10 Elo average was 1920, and top seed was Loukas Papadimitriou (🇬🇷 GRE, 2032).
Hristoforos Nemtsas (🇬🇷 GRE, 1979) won with 7.0/7, ahead of Konst Katsadoros-Fegeros (5.5) and Orestis Stefanopoulos (5.0). Nemtsas won solo starting round 4.
The biggest upset came in round 7: Elvis Gkogka (1590) beat Theodoros Sideris (1883), a +293-point gap.
Location
🇬🇷Athens, Greece
Dates
05 Nov 2025 → 17 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Titled players · 1
FM×1
Federations · 1 represented
🇬🇷Greece×44
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsHristoforos Nemtsas led from R4; +1.5-point edge over the runner-up.
Co-leaders
17
7
2
1
1
1
1
R4–R7 · LEAD HELD
Hristoforos Nemtsas never relinquished the lead after R4; final gap +1.5 over the runner-up.
WIN STREAKS · 2 top finishers
Hristoforos Nemtsas 7 wins (R1–R7)Solon Raptakis 3 wins (R4–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Hristoforos Nemtsas | * | — | — | 1 |
| 2Konst Katsadoros-Fegeros | — | * | — | ½ |
| 3Solon Raptakis | — | — | * | ½ |
| 4Dimitrios Delithanasis | 0 | ½ | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Nemtsas, Hristoforos | 1979 | GRE | +23N | +31B | +10N | +16B | +4N | +9B | +3N | 7.0 | 23.5 | 25.5 | 25.50 | 2655 | +41.2 |
| 2 | Katsadoros-Fegeros, Konst | 1787 | GRE | +34N | +13B | =4N | =3N | +11B | =6B | +7N | 5.5 | 26.5 | 28.5 | 21.25 | 2075 | +52.0 |
| 3 | Stefanopoulos, OrestisFM | 1941 | GRE | +18N | +26B | =7N | =2B | +16N | +8B | −1B | 5.0 | 27.5 | 30.0 | 18.00 | 1964 | +4.6 |
| 4 | Delithanasis, Dimitrios | 1943 | GRE | +38B | +43N | =2B | +24N | −1B | +17N | =5B | 5.0 | 24.0 | 25.0 | 12.75 | 1942 | +3.0 |
| 5 | Raptakis, Solon | 1768 | GRE | +40N | −10B | =13N | +23B | +33N | +14B | =4N | 5.0 | 20.5 | 21.5 | 13.25 | 1910 | +29.4 |
| 6 | Bouras, Antonios | 1843 | GRE | +21B | −7B | +15N | +10B | +17N | =2N | F | 4.5 | 24.5 | 27.5 | 16.25 | 2000 | +25.2 |
| 7 | Papadimitriou, Loukas | 2032 | GRE | +20B | +6N | =3B | −9N | +24B | +26N | −2B | 4.5 | 24.5 | 27.0 | 15.00 | 1896 | -20.0 |
| 8 | Chatzipavlou, Odysseas | 1792 | GRE | =30B | +33N | −24B | +39N | +38B | −3N | +23B | 4.5 | 15.0 | 16.0 | 7.50 | 1719 | -18.8 |
| 9 | Avagianos, Simeon | 1875 | GRE | +32N | =15B | +19N | +7B | =14N | −1N | F | 4.0 | 26.0 | 28.0 | 13.00 | 1929 | +9.8 |
| 10 | Paouris, Nikolaos | 1904 | GRE | +37B | +5N | −1B | −6N | +25B | +16N | F | 4.0 | 25.5 | 27.0 | 12.00 | 1850 | -5.6 |
| 11 | Lykiardopoulos, Miltiadis | 1810 | GRE | −24N | +27B | =38N | +15B | −2N | +19B | =12N | 4.0 | 21.0 | 22.0 | 11.50 | 1684 | -19.4 |
| 12 | Kazakos, Panteleimon | 1765 | GRE | −16B | +21N | −14B | +28N | +34B | =23N | =11B | 4.0 | 18.5 | 20.5 | 10.75 | 1751 | +0.8 |
| 13 | Vazelakis, Dimitrios | 1914 | GRE | +35B | −2N | =5B | =25N | =18B | +24N | F | 3.5 | 22.5 | 24.5 | 9.75 | 1724 | -25.4 |
| 14 | Minadakis, Andreas-Marios | 1884 | GRE | =19N | =24B | +12N | F | =9B | −5N | +15B | 3.5 | 22.0 | 24.0 | 12.25 | 1769 | -15.2 |
| 15 | Ntaifas, Ioannis | 1720 | GRE | +41B | =9N | −6B | −11N | +39B | +35N | −14N | 3.5 | 19.0 | 20.0 | 6.00 | 1708 | -2.2 |
| 16 | Sifakis, Nektarios | 0 | GRE | +12N | +17B | +44N | −1N | −3B | −10B | F | 3.0 | 26.0 | 27.0 | 8.00 | 1885 | 0.0 |
| 17 | Sideris, Theodoros | 1883 | GRE | +25B | −16N | +20B | +18N | −6B | −4B | −36N | 3.0 | 21.0 | 22.5 | 8.50 | 1726 | -23.0 |
| 18 | Arvanitakis, Panagiotis | 1670 | GRE | −3B | +41N | +22B | −17B | =13N | =25N | F | 3.0 | 20.0 | 21.0 | 7.00 | 1740 | +7.6 |
| 19 | Ioannidis, Ilias | 1626 | GRE | =14B | +22N | −9B | −20N | +30B | −11N | =38B | 3.0 | 19.5 | 20.5 | 7.25 | 1683 | +8.8 |
| 20 | Mokas, Vasilios | 1709 | GRE | −7N | +32B | −17N | +19B | F | +21N | F | 3.0 | 18.5 | 20.5 | 8.00 | 1800 | +11.4 |
| 21 | Michailidis, Georgios Savvas | 1525 | GRE | −6N | −12B | −40N | +27B | +32N | −20B | +39N | 3.0 | 17.0 | 18.0 | 5.50 | 1514 | -4.4 |
| 22 | Papadopoulos, Georgios | 1726 | GRE | =27N | −19B | −18N | −29B | +40N | =39B | +30N | 3.0 | 14.0 | 15.0 | 4.75 | 1486 | -37.4 |
| 23 | Mataragkas, Georgios | 1698 | GRE | −1B | +28N | +43B | −5N | F | =12B | −8N | 2.5 | 26.0 | 27.0 | 5.50 | 1704 | +0.6 |
| 24 | Spyropoulos, Panagiotis V | 1517 | GRE | +11B | =14N | +8N | −4B | −7N | −13B | F | 2.5 | 25.0 | 27.0 | 10.25 | 1815 | +73.6 |
| 25 | Georgakopoulou, Anna | 1597 | GRE | −17N | +42B | =26N | =13B | −10N | =18B | F | 2.5 | 18.0 | 19.0 | 5.50 | 1679 | +16.0 |
| 26 | Kouros, Ahileas | 1772 | GRE | +42B | −3N | =25B | +30N | F | −7B | F | 2.5 | 18.0 | 19.0 | 4.25 | 1667 | -11.2 |
| 27 | Christodoulidi, Georgia | 0 | GRE | =22B | −11N | −37B | −21N | +42B | =30N | =28B | 2.5 | 16.0 | 17.0 | 4.75 | 1410 | 0.0 |
| 28 | Wolters, Maximos | 1442 | GRE | −31N | −23B | +32N | −12B | +41N | −29B | =27N | 2.5 | 15.5 | 16.5 | 4.25 | 1439 | 0.0 |
| 29 | Gkogka, Klevis | 1578 | GRE | F | F | −30B | +22N | =36B | +28N | F | 2.5 | 12.0 | 12.0 | 6.25 | 1641 | +6.6 |
| 30 | Vakalopoulou, Vasiliki | 1448 | GRE | =8N | −44B | +29N | −26B | −19N | =27B | −22B | 2.0 | 18.0 | 19.0 | 6.00 | 1530 | +17.6 |
| 31 | Tzanidakis, Mihail | 1774 | GRE | +28B | −1N | +35B | F | F | F | F | 2.0 | 17.5 | 17.5 | 4.50 | 1810 | +4.2 |
| 32 | Foutouhos, Dimitrios | 1582 | GRE | −9B | −20N | −28B | +42N | −21B | +41N | F | 2.0 | 16.0 | 17.0 | 2.00 | 829 | -35.8 |
| 33 | Osmani, Sokol | 1512 | GRE | F | −8B | +36N | F | −5B | +38N | F | 2.0 | 15.5 | 15.5 | 2.50 | 1709 | +19.8 |
| 34 | Stavropoulos, Simeon | 1446 | GRE | −2B | F | +42N | +40B | −12N | F | F | 2.0 | 14.0 | 14.0 | 2.00 | 1530 | 0.0 |
| 35 | Foutouhos, Spyridon | 1658 | GRE | −13N | +40B | −31N | +41B | F | −15B | F | 2.0 | 13.5 | 13.5 | 2.00 | 1512 | -15.2 |
| 36 | Gkogka, Elvis | 1590 | GRE | F | F | −33B | F | =29N | F | +17B | 1.5 | 9.5 | 9.5 | 4.25 | 1658 | +4.2 |
| 37 | Tzachristas, Georgios | 1702 | GRE | −10N | =39B | +27N | F | F | F | F | 1.5 | 8.5 | 8.5 | 3.00 | 1520 | -9.6 |
| 38 | Georgiadis, Panagiotis | 1684 | GRE | −4N | F | =11B | F | −8N | −33B | =19N | 1.0 | 20.5 | 22.0 | 3.50 | 1497 | -23.4 |
| 39 | Paschalis, Efstathios | 1522 | GRE | −43B | =37N | F | −8B | −15N | =22N | −21B | 1.0 | 16.5 | 16.5 | 2.25 | 1443 | -11.2 |
| 40 | Dalpis, Nikolaos | 1412 | GRE | −5B | −35N | +21B | −34N | −22B | −42N | −41B | 1.0 | 16.0 | 17.0 | 3.00 | 1380 | -5.4 |
| 41 | Kazantzoglou, Aristotelis | 0 | GRE | −15N | −18B | F | −35N | −28B | −32B | +40N | 1.0 | 14.0 | 14.0 | 1.00 | 1304 | 0.0 |
| 42 | Karapappas, Nikolaos | 0 | GRE | −26N | −25N | −34B | −32B | −27N | +40B | F | 1.0 | 12.5 | 12.5 | 1.00 | 1320 | 0.0 |
| 43 | Voriniotis, Konstantinos | 1843 | GRE | +39N | −4B | −23N | F | F | F | F | 1.0 | 8.5 | 8.5 | 1.00 | 1595 | -37.2 |
| 44 | Athanasiou, Soumela | 1841 | GRE | F | +30N | −16B | F | F | F | F | 1.0 | 7.0 | 7.0 | 2.00 | 2246 | +3.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Spyropoulos, Panagiotis VGRE+73.62.5 pts · #23
- 2Katsadoros-Fegeros, KonstGRE+52.05.5 pts · #2
- 3Nemtsas, HristoforosGRE+41.27.0 pts · #1
Top rating losers
- 1Papadopoulos, GeorgiosGRE-37.43.0 pts · #20
- 2Voriniotis, KonstantinosGRE-37.21.0 pts · #39
- 3Foutouhos, DimitriosGRE-35.82.0 pts · #44
Biggest upsets
- R7+293 Elo gap
- R1+293 Elo gap
- R3+275 Elo gap