27th Open Irakleiou Attikis - Athens Challenge 2025 A
SwissStandard
69 players participated in this 9-round tournament, held from 14 Jun 2025 to 22 Jun 2025 in Heraklion Attikis, Greece. 12 titled players from 2 federations. Top 10 Elo average was 2270, and top seed was Spyridon Kapnisis (🇬🇷 GRE, GM, 2382).
Georgios Mitsis (🇬🇷 GRE, IM, 2372) won with 7.0/9, ahead of Stefanos Kazantzoglou (7.0) and Spyridon Kapnisis (6.5). Mitsis won on tie-break after catching the field in the final round.
The biggest upset came in round 1: Soroush Najjari Omidkhah (1558) beat Nikolaos Sarakenidis (1892), a +334-point gap.
Location
🇬🇷Heraklion Attikis, Greece
Dates
14 Jun 2025 → 22 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Titled players · 12
GM×1
IM×2
FM×6
CM×2
WCM×1
Federations · 2 represented
🇬🇷Greece×68
🇵🇱Poland×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsTight race until R9; 2 players tied at 7.0/9, decided on Buchholz.
Co-leaders
27
11
3
1
1
3
1
1
2
Mitsis7Kazantzoglou7Vassis6.5Finokaliotis6.5Kapnisis6.5Papadopoulos6— ex-leaders:Ergazakisled R4–R5, #8
R7 · LEADER CHANGE20 Jun
FM Stefanos Kazantzoglou takes the sole lead (6.0/7).
R9 · TIEBREAK CLUSTER
2 players finish on 7.0/9. Mitsis takes the title on Buchholz Cut1 (47.0).
R8 · HEAD-TO-HEAD · WINNER VS 2ND
IM Georgios Mitsis drew with FM Stefanos Kazantzoglou (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1IMGeorgios Mitsis | * | ½ | ½ | — |
| 2FMStefanos Kazantzoglou | ½ | * | — | ½ |
| 3FMMichail Vassis | ½ | — | * | — |
| 4Georgios Finokaliotis | — | ½ | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Mitsis, GeorgiosIM | 2372 | GRE | +26N | +8B | =10N | +43B | =4N | +14B | =3N | =2B | +7N | 7.0 | 47.0 | 50.0 | 37.25 | 2379 | +3.6 |
| 2 | Kazantzoglou, StefanosFM | 2274 | GRE | +25B | +67N | −13B | +47N | +8B | +9N | +6B | =1N | =5B | 7.0 | 44.0 | 45.0 | 32.75 | 2308 | +24.8 |
| 3 | Kapnisis, SpyridonGM | 2382 | GRE | +36B | +12N | =4B | =5N | =11N | +38B | =1B | +6N | =9B | 6.5 | 46.0 | 49.5 | 34.00 | 2309 | -4.1 |
| 4 | Vassis, MichailFM | 2274 | GRE | +28N | +42B | =3N | +10B | =1B | =6N | −9B | +36N | +11B | 6.5 | 44.0 | 47.5 | 32.25 | 2302 | +26.4 |
| 5 | Finokaliotis, Georgios | 2094 | GRE | =32N | +62B | +22N | =3B | =7N | +23B | =10N | +15B | =2N | 6.5 | 43.5 | 45.5 | 31.00 | 2218 | +32.6 |
| 6 | Ergazakis, IoannisFM | 2194 | GRE | +49N | +17B | +7N | +11B | =9N | =4B | −2N | −3B | +10N | 6.0 | 47.5 | 50.5 | 31.00 | 2302 | +28.8 |
| 7 | Papadopoulos, GeorgiosFM | 2363 | GRE | +19B | +58N | −6B | +24N | =5B | +18N | +16B | =9N | −1B | 6.0 | 44.5 | 47.0 | 28.00 | 2228 | -21.6 |
| 8 | Panopoulos, Ioannis | 1950 | GRE | +39N | −1N | +27B | +32B | −2N | +24B | =15N | =14B | +35N | 6.0 | 41.0 | 44.5 | 25.50 | 2093 | +31.4 |
| 9 | Alexiadis, HristosIM | 2355 | GRE | +34N | +14B | F | +13N | =6B | −2B | +4N | =7B | =3N | 5.5 | 46.5 | 48.5 | 30.25 | 2333 | 0.0 |
| 10 | Kassios, Dimitrios | 2197 | GRE | +27B | +33N | =1B | −4N | +61B | =11N | =5B | +16N | −6B | 5.5 | 45.0 | 47.0 | 25.00 | 2123 | -21.2 |
| 11 | Mylonakis, IoannisCM | 2044 | GRE | +51N | +20B | +59N | −6N | =3B | =10B | =14N | +12B | −4N | 5.5 | 43.0 | 45.5 | 24.50 | 2160 | +55.6 |
| 12 | Zavrakidis, Nikolaos | 1992 | GRE | +37N | −3B | +49N | =23B | +22N | =15B | =13B | −11N | +28B | 5.5 | 40.0 | 43.0 | 23.50 | 2040 | +22.0 |
| 13 | Oikonomopoulos, FilipposCM | 2136 | GRE | +23N | +47B | +2N | −9B | −14N | +27B | =12N | +21B | F | 5.5 | 40.0 | 40.0 | 26.75 | 2125 | +3.2 |
| 14 | Pitsakis, Ilias | 1947 | GRE | +44B | −9N | +40B | +35N | +13B | −1N | =11B | =8N | −18B | 5.0 | 42.0 | 45.0 | 21.75 | 2072 | +50.4 |
| 15 | Papadimitriou, Loukas | 2085 | GRE | =16B | =64N | =25B | +53N | +30B | =12N | =8B | −5N | =19B | 5.0 | 39.0 | 40.5 | 20.25 | 1886 | -40.2 |
| 16 | Ampeliotis, Georgios | 1761 | GRE | =15N | −38B | +39N | +20B | +43N | +17B | −7N | −10B | =26N | 5.0 | 38.0 | 41.0 | 21.25 | 2013 | +107.6 |
| 17 | Lampos, Charalampos | 1905 | GRE | +60B | −6N | −30B | +44N | +40B | −16N | +25N | =23B | =21N | 5.0 | 35.5 | 37.5 | 17.75 | 1848 | -27.6 |
| 18 | Rigopoulos-Tsigkos, Alexandros | 2064 | GRE | F | F | =38N | +36B | +21N | −7B | =23N | +26B | +14N | 5.0 | 32.0 | 32.0 | 22.00 | 2097 | +7.0 |
| 19 | Kalliora, Despoina | 1844 | GRE | −7N | =39B | +60N | −59B | =37N | +55B | +33N | =24B | =15N | 5.0 | 31.5 | 33.5 | 16.75 | 1932 | +36.0 |
| 20 | Lampou, MariantaWCM | 1868 | GRE | +66B | −11N | =50B | −16N | −53B | +45N | +29B | =30N | +49B | 5.0 | 30.5 | 31.5 | 15.00 | 1761 | -46.0 |
| 21 | Megagiannis, Maximos | 1859 | GRE | +65N | =59B | F | +50N | −18B | +53N | +31B | −13N | =17B | 5.0 | 28.5 | 28.5 | 14.25 | 1962 | +46.4 |
| 22 | Vasilakopoulos, Georgios | 1854 | GRE | F | +53N | −5B | +45N | −12B | +43B | +38N | F | +31B | 5.0 | 28.0 | 28.0 | 16.00 | 2043 | +36.6 |
| 23 | Athanasopoulos, Georgios 45299 | 1774 | GRE | −13B | +54N | +58B | =12N | +31B | −5N | =18B | =17N | F | 4.5 | 36.5 | 36.5 | 16.75 | 1998 | +45.0 |
| 24 | Sarakenidis, Nikolaos | 1892 | GRE | −45B | +46N | +44B | −7B | +49N | −8N | =30B | =19N | =25N | 4.5 | 34.5 | 37.5 | 15.75 | 1824 | -17.0 |
| 25 | Synetos, Dionysios | 1826 | GRE | −2N | +55B | =15N | F | =45B | +44N | −17B | +54N | =24B | 4.5 | 32.5 | 32.5 | 14.25 | 1872 | +9.0 |
| 26 | Seferis, Georgios | 1845 | GRE | −1B | −30N | +68B | +56N | =42B | =61N | +51B | −18N | =16B | 4.5 | 32.0 | 32.0 | 10.75 | 1850 | -1.0 |
| 27 | Mavrogeorgos, Ilias | 1801 | GRE | −10N | +56B | −8N | +69B | +57B | −13N | =47B | −31N | +48N | 4.5 | 32.0 | 32.0 | 9.50 | 1878 | +32.0 |
| 28 | Chompas, Vasileios | 1815 | GRE | −4B | −41N | =52B | −46N | +54N | +65B | +37N | +48B | −12N | 4.5 | 30.5 | 31.5 | 11.50 | 1742 | -36.4 |
| 29 | Spiliotopoulos, Spyridon | 1773 | GRE | −59N | +65B | −42N | =33B | −48N | +64B | −20N | +53B | +37N | 4.5 | 25.5 | 26.5 | 10.50 | 1794 | +8.4 |
| 30 | Limnaios, Emmanouil | 1752 | GRE | −43N | +26B | +17N | =38B | −15N | =35B | =24N | =20B | F | 4.0 | 34.5 | 34.5 | 18.00 | 1928 | +72.0 |
| 31 | Makrylakis, Iason | 1957 | GRE | +48B | F | −43N | +37B | −23N | +32B | −21N | +27B | −22N | 4.0 | 32.5 | 32.5 | 15.00 | 1821 | -56.8 |
| 32 | Gkekos, Ioannis | 1770 | GRE | =5B | =57N | +67B | −8N | +47B | −31N | F | −35B | +34N | 4.0 | 32.0 | 33.0 | 12.50 | 1929 | +32.0 |
| 33 | Tsanas, Nikolaos | 1912 | GRE | +56N | −10B | F | =29N | +46B | =51N | −19B | =40N | =50B | 4.0 | 30.0 | 30.0 | 12.50 | 1784 | -52.0 |
| 34 | Sotirakopoulos, Panagiotis | 1838 | GRE | −9B | −44N | −56B | +68N | +52B | −40N | +46B | +51N | −32B | 4.0 | 27.5 | 27.5 | 9.00 | 1708 | -64.0 |
| 35 | Misthos, Alexandros | 1860 | GRE | F | F | +69N | −14B | =58B | =30N | +40B | +32N | −8B | 4.0 | 25.0 | 25.0 | 10.75 | 1862 | +4.8 |
| 36 | Demestichas, Petros | 1846 | GRE | −3N | =37B | +41B | −18N | +50B | +58N | F | −4B | F | 3.5 | 34.0 | 34.0 | 10.75 | 1935 | +24.4 |
| 37 | Karanasou, Ourania Fanouria | 1746 | GRE | −12B | =36N | +46B | −31N | =19B | =47N | −28B | +41N | −29B | 3.5 | 33.5 | 36.5 | 12.25 | 1749 | 0.0 |
| 38 | Sienczewski, Zbigniew | 1942 | POL | =46B | +16N | =18B | =30N | +51B | −3N | −22B | F | F | 3.5 | 31.5 | 31.5 | 14.00 | 1886 | -11.6 |
| 39 | Mataragkas, Georgios | 1735 | GRE | −8B | =19N | −16B | −52N | +68B | =46N | =50B | =45N | =54B | 3.5 | 30.5 | 30.5 | 8.25 | 1603 | -32.6 |
| 40 | Veskoukis, Konstantinos | 1793 | GRE | −63N | +52B | −14N | +54B | −17N | +34B | −35N | =33B | F | 3.5 | 29.5 | 29.5 | 11.50 | 1798 | -0.4 |
| 41 | Dimitroulas, Dimitrios | 1680 | GRE | −67B | +28B | −36N | −57N | −44B | =50N | +60N | −37B | +55N | 3.5 | 24.5 | 25.5 | 10.50 | 1684 | -0.8 |
| 42 | Mytilinis, Sokratis | 1936 | GRE | +68B | −4N | +29B | F | =26N | +48B | F | F | F | 3.5 | 22.0 | 22.0 | 9.75 | 2000 | +8.4 |
| 43 | Nemtsas, Hristoforos | 2025 | GRE | +30B | =45N | +31B | −1N | −16B | −22N | =53B | F | F | 3.0 | 33.5 | 33.5 | 10.75 | 1799 | -38.6 |
| 44 | Emmanouilidis, Paschalis | 1720 | GRE | −14N | +34B | −24N | −17B | +41N | −25B | F | +66N | F | 3.0 | 31.5 | 32.5 | 8.50 | 1752 | +10.8 |
| 45 | Najjari Omidkhah, Soroush | 1558 | GRE | +24N | =43B | F | −22B | =25N | −20B | =55N | =39B | F | 3.0 | 30.0 | 30.0 | 11.25 | 1784 | +70.4 |
| 46 | Maniati, Konstantina | 1680 | GRE | =38N | −24B | −37N | +28B | −33N | =39B | −34N | F | +56B | 3.0 | 30.0 | 30.0 | 10.50 | 1724 | +13.6 |
| 47 | Poullas, Antonis | 1875 | GRE | +54N | −13N | +64B | −2B | −32N | =37B | =27N | F | F | 3.0 | 28.5 | 28.5 | 8.00 | 1802 | -16.0 |
| 48 | Nikitakis, Ioannis | 1736 | GRE | −31N | F | −53B | +60N | +29B | −42N | +57B | −28N | −27B | 3.0 | 28.0 | 28.0 | 9.00 | 1713 | -13.6 |
| 49 | Nikitakis, Michail | 1800 | GRE | −6B | +68N | −12B | +65N | −24B | +57N | F | F | −20N | 3.0 | 27.5 | 27.5 | 3.50 | 1808 | -2.0 |
| 50 | Xynidi, Areti | 1617 | GRE | F | F | =20N | −21B | −36N | =41B | =39N | +55B | =33N | 3.0 | 27.0 | 27.0 | 10.50 | 1750 | +44.4 |
| 51 | Athanasiou, Soumela | 1756 | GRE | −11B | +66N | +57B | =61N | −38N | =33B | −26N | −34B | F | 3.0 | 27.0 | 27.0 | 6.50 | 1779 | +5.6 |
| 52 | Gkogka, Elvis | 1568 | GRE | −61B | −40N | =28N | +39B | −34N | −62B | =64N | −60B | +66B | 3.0 | 23.0 | 24.0 | 7.50 | 1613 | +8.0 |
| 53 | Koliousis, Nikolaos | 1625 | GRE | F | −22B | +48N | −15B | +20N | −21B | =43N | −29N | F | 2.5 | 30.5 | 30.5 | 9.50 | 1775 | +21.4 |
| 54 | Katsaros, Marios Nikolaos | 1545 | GRE | −47B | −23B | +55N | −40N | −28B | +69N | F | −25B | =39N | 2.5 | 29.0 | 29.0 | 4.25 | 1615 | +23.6 |
| 55 | Tsampas, Charalampos | 1703 | GRE | −58B | −25N | −54B | +66N | +56B | −19N | =45B | −50N | −41B | 2.5 | 26.5 | 27.5 | 5.00 | 1518 | -45.0 |
| 56 | Kasiktsidis, Nikolaos | 1610 | GRE | −33B | −27N | +34N | −26B | −55N | −60B | =65N | +64B | −46N | 2.5 | 26.0 | 27.0 | 6.00 | 1563 | -25.6 |
| 57 | Sideris, Theodoros | 1914 | GRE | F | =32B | −51N | +41B | −27N | −49B | −48N | +65B | F | 2.5 | 25.0 | 25.0 | 6.50 | 1621 | -53.0 |
| 58 | Tzortzatos, Dimosthenis Panagiot | 1946 | GRE | +55N | −7B | −23N | +64B | =35N | −36B | F | F | F | 2.5 | 22.0 | 22.0 | 6.00 | 1813 | -47.2 |
| 59 | Gazis, EfstathiosFM | 2112 | GRE | +29B | =21N | −11B | +19N | F | F | F | F | F | 2.5 | 20.0 | 20.0 | 12.00 | 1975 | -12.2 |
| 60 | Stefos, Dimitrios | 1576 | GRE | −17N | F | −19B | −48B | −62N | +56N | −41B | +52N | F | 2.0 | 27.0 | 27.0 | 5.50 | 1572 | -3.0 |
| 61 | Voutsas, Leonidas | 1903 | GRE | +52N | −63B | F | =51B | −10N | =26B | F | F | F | 2.0 | 22.0 | 22.0 | 6.75 | 1832 | -10.0 |
| 62 | Kyriakidis, Orestis | 1767 | GRE | F | −5N | F | F | +60B | +52N | F | F | F | 2.0 | 11.5 | 11.5 | 5.00 | 1871 | +14.4 |
| 63 | Nikolaidis, KonstantinosFM | 2155 | GRE | +40B | +61N | F | F | F | F | F | F | F | 2.0 | 11.0 | 11.0 | 5.50 | 2648 | +5.8 |
| 64 | Drivas, Georgios I | 1691 | GRE | F | =15B | −47N | −58N | =65B | −29N | =52B | −56N | F | 1.5 | 21.5 | 21.5 | 4.50 | 1538 | -57.2 |
| 65 | Bervanakis, Georgios | 1517 | GRE | −21B | −29N | F | −49B | =64N | −28N | =56B | −57N | F | 1.0 | 23.5 | 23.5 | 2.00 | 1471 | -14.0 |
| 66 | Choromidis, Stylianos | 1527 | GRE | −20N | −51B | F | −55B | F | +68N | F | −44B | −52N | 1.0 | 16.5 | 16.5 | 0.00 | 1434 | -26.0 |
| 67 | Antoniadis, Anastasios | 1941 | GRE | +41N | −2B | −32N | F | F | F | F | F | F | 1.0 | 14.5 | 14.5 | 3.50 | 1783 | -13.2 |
| 68 | Mitzas, Dimitris | 1627 | GRE | −42N | −49B | −26N | −34B | −39N | −66B | F | F | F | 0.0 | 19.5 | 19.5 | 0.00 | 981 | -37.0 |
| 69 | Rizou, Varvara | 1566 | GRE | F | F | −35B | −27N | F | −54B | F | F | F | 0.0 | 11.0 | 11.0 | 0.00 | 935 | -30.8 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Ampeliotis, GeorgiosGRE+107.65.0 pts · #20
- 2Limnaios, EmmanouilGRE+72.04.0 pts · #35
- 3Najjari Omidkhah, SoroushGRE+70.43.0 pts · #47
Top rating losers
- 1Sotirakopoulos, PanagiotisGRE-64.04.0 pts · #32
- 2Drivas, Georgios IGRE-57.21.5 pts · #64
- 3Makrylakis, IasonGRE-56.84.0 pts · #34
Biggest upsets
- R1+334 Elo gap
- R5+264 Elo gap
- R5+243 Elo gap