Autumn open chess Square Sep 2025
Open SwissStandard
33 players participated in this 7-round tournament, held from 20 Sept 2025 to 01 Nov 2025 in Athens, Greece. Top 10 Elo average was 1912, and top seed was Antonios Georgantas (🇬🇷 GRE, 2052).
Georgios Poulos (🇬🇷 GRE, 1972) won with 6.5/7, ahead of Theodoros Sideris (5.0) and Sotirios Stavropoulos (5.0). Poulos won solo starting round 5.
The biggest upset came in round 5: Dimitrios Kilakos (1558) beat Georgios Vlasopoulos (1780), a +222-point gap.
Location
🇬🇷Athens, Greece
Dates
20 Sept 2025 → 01 Nov 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Federations · 1 represented
🇬🇷Greece×32
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsGeorgios Poulos led from R5; +1.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Co-leaders
14
4
2
2
1
1
1
R5–R7 · LEAD HELD
Georgios Poulos never relinquished the lead after R5; final gap +1.5 over the runner-up.
R6 · HEAD-TO-HEAD · WINNER VS 2ND
Georgios Poulos beat Sotirios Stavropoulos (White).
WIN STREAKS · 2 top finishers
Georgios Poulos 3+3 wins (R1–R3, R5–R7)Theodoros Sideris 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Georgios Poulos | * | 1 | ½ | — |
| 2Sotirios Stavropoulos | 0 | * | 1 | — |
| 3Theodoros Sideris | ½ | 0 | * | — |
| 4Hristoforos Nemtsas | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Poulos, Georgios | 1972 | GRE | +12N | +4B | +13N | =2B | +16N | +3B | +9B | 6.5 | 25.5 | 28.0 | 25.50 | 2267 | +36.6 |
| 2 | Sideris, Theodoros | 1926 | GRE | +24B | +5N | +10B | =1N | −3B | +15N | =4B | 5.0 | 28.0 | 30.0 | 19.50 | 1971 | +9.4 |
| 3 | Stavropoulos, Sotirios | 1842 | GRE | =22N | +20B | =8N | +26B | +2N | −1N | +16B | 5.0 | 22.5 | 24.5 | 15.00 | 1961 | +47.6 |
| 4 | Nikoleris, Evangelos | 1813 | GRE | +23B | −1N | +6B | +17N | =12B | =8B | =2N | 4.5 | 26.0 | 28.0 | 15.25 | 1904 | +19.8 |
| 5 | Karvountzis, Ioannis Chrysostomos | 1810 | GRE | +25N | −2B | −24N | +14N | =11B | +27B | +13N | 4.5 | 20.0 | 22.0 | 13.00 | 1733 | -19.2 |
| 6 | Kapogiannatos, Angelos | 1829 | GRE | +21N | =8B | −4N | +19B | −9B | +28N | +18B | 4.5 | 20.0 | 22.0 | 11.50 | 1847 | +7.6 |
| 7 | Nemtsas, Hristoforos | 1937 | GRE | +26N | =19B | −16N | +30B | −8N | +22B | +12N | 4.5 | 16.5 | 18.0 | 10.25 | 1841 | -12.6 |
| 8 | Georgantas, Antonios | 2052 | GRE | +18B | =6N | =3B | =15N | +7B | =4N | F | 4.0 | 24.5 | 24.5 | 15.75 | 1947 | -14.0 |
| 9 | Delithanasis, Dimitrios | 1957 | GRE | +17B | F | +19N | −16B | +6N | +12B | −1N | 4.0 | 22.0 | 22.0 | 13.00 | 1923 | -4.2 |
| 10 | Synetos, Dionysios | 1837 | GRE | +14B | +28N | −2N | +24B | =15B | =16N | F | 4.0 | 20.5 | 22.5 | 10.50 | 1812 | -0.6 |
| 11 | Athanasakopoulos, Alexandros | 1718 | GRE | +33N | −13B | =30N | +32B | =5N | +20B | F | 4.0 | 17.0 | 17.0 | 6.50 | 1844 | +17.0 |
| 12 | Nikolopoulos, Nikolaos S | 1705 | GRE | −1B | +23N | +29B | +13B | =4N | −9N | −7B | 3.5 | 25.0 | 27.0 | 9.75 | 1792 | +28.4 |
| 13 | Vazelakis, Dimitrios | 1862 | GRE | +29B | +11N | −1B | −12N | +17B | =18N | −5B | 3.5 | 23.5 | 25.5 | 9.75 | 1744 | -21.4 |
| 14 | Matthaiou, Theodoros | 1539 | GRE | −10N | +18N | F | −5B | +25B | =21N | +20N | 3.5 | 18.5 | 20.5 | 8.25 | 1698 | +39.2 |
| 15 | Garyfallou, Dimosthenis | 1800 | GRE | F | +22B | +32N | =8B | =10N | −2B | =17N | 3.5 | 18.5 | 18.5 | 8.25 | 1887 | +14.6 |
| 16 | Deli, Eleanna Ratzvika | 1799 | GRE | F | F | +7B | +9N | −1B | =10B | −3N | 2.5 | 24.0 | 24.0 | 10.50 | 1908 | +14.6 |
| 17 | Danopoulos, Odysseas Dimitrios | 1694 | GRE | −9N | +21B | F | −4B | −13N | +19N | =15B | 2.5 | 21.5 | 24.0 | 6.75 | 1723 | +3.8 |
| 18 | Mengoulis, Konstantinos | 1715 | GRE | −8N | −14B | +25N | +21B | F | =13B | −6N | 2.5 | 20.0 | 22.0 | 6.25 | 1601 | -16.0 |
| 19 | Vlasopoulos, Georgios | 1780 | GRE | +27B | =7N | −9B | −6N | −22N | −17B | +23B | 2.5 | 19.5 | 21.5 | 6.25 | 1540 | -35.6 |
| 20 | Lampsas, Georgios | 1661 | GRE | F | −3N | =22B | +23N | +29B | −11N | −14B | 2.5 | 18.5 | 18.5 | 5.00 | 1554 | -18.0 |
| 21 | Priftis, Evangelos | 1469 | GRE | −6B | −17N | +31B | −18N | F | =14B | +22N | 2.5 | 16.0 | 16.0 | 4.75 | 1573 | +27.2 |
| 22 | Kilakos, Dimitrios | 1558 | GRE | =3B | −15N | =20N | F | +19B | −7N | −21B | 2.0 | 20.5 | 20.5 | 6.25 | 1623 | +7.0 |
| 23 | Stavropoulos, Simeon | 1437 | GRE | −4N | −12B | +33N | −20B | −27N | +31B | −19N | 2.0 | 16.0 | 16.0 | 1.00 | 1443 | -0.6 |
| 24 | Spyrou, Agamemnon Ioannis | 1619 | GRE | −2N | +25B | +5B | −10N | F | F | F | 2.0 | 15.5 | 15.5 | 6.50 | 1733 | +15.6 |
| 25 | Pispirigkos, Konstantinos | 0 | GRE | −5B | −24N | −18B | +31N | −14N | +33B | −27N | 2.0 | 15.5 | 15.5 | 1.00 | 1386 | 0.0 |
| 26 | Koutsompinas, Georgios | 1656 | GRE | −7B | +31N | +28B | −3N | F | F | F | 2.0 | 15.0 | 15.0 | 3.00 | 1657 | 0.0 |
| 27 | Kazantzoglou, Aristotelis | 0 | GRE | −19N | −30B | F | −29N | +23B | −5N | +25B | 2.0 | 14.5 | 14.5 | 4.00 | 1403 | 0.0 |
| 28 | Fardis, Theodosios | 1404 | GRE | +31B | −10B | −26N | F | +30N | −6B | F | 2.0 | 13.0 | 13.0 | 2.50 | 1593 | +39.2 |
| 29 | Flouri, Maria | 1583 | GRE | −13N | +33B | −12N | +27B | −20N | F | F | 2.0 | 11.5 | 11.5 | 2.00 | 946 | -17.4 |
| 30 | Atmatzidi Oikonomidi, Iro | 1616 | GRE | −32B | +27N | =11B | −7N | −28B | F | F | 1.5 | 13.5 | 13.5 | 4.00 | 1420 | -18.2 |
| 31 | Kalamitsis, Ioannis | 1430 | GRE | −28N | −26B | −21N | −25B | F | −23N | +33B | 1.0 | 10.5 | 10.5 | 0.00 | 688 | -71.6 |
| 32 | Christidis, Savvas | 1909 | GRE | +30N | F | −15B | −11N | F | F | F | 1.0 | 9.0 | 9.0 | 1.50 | 1587 | -25.0 |
| 33 | FIDE 42159644 | 0 | — | −11B | −29N | −23B | F | F | −25N | −31N | 0.0 | 13.5 | 13.5 | 0.00 | 743 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Stavropoulos, SotiriosGRE+47.65.0 pts · #2
- 2Matthaiou, TheodorosGRE+39.23.5 pts · #14
- 3Fardis, TheodosiosGRE+39.22.0 pts · #22
Top rating losers
- 1Kalamitsis, IoannisGRE-71.61.0 pts · #32
- 2Vlasopoulos, GeorgiosGRE-35.62.5 pts · #23
- 3Christidis, SavvasGRE-25.01.0 pts · #29
Biggest upsets
- R5+222 Elo gap
- R5+212 Elo gap
- R4+191 Elo gap