2025 National Youth Championships - open U16
Open SwissStandard
43 players participated in this 9-round tournament, held from 06 Jul 2025 to 12 Jul 2025 in Thessaloniki, Greece. 3 titled players. Top 10 Elo average was 2050, and top seed was Michail Vassis (🇬🇷 GRE, FM, 2290).
Michail Vassis (🇬🇷 GRE, FM, 2290) won with 8.0/9, ahead of Nikolaos G Seretis (6.5) and Michail Karakasidis (6.5). Vassis shared the lead from round 6 and won solo starting round 7.
The biggest upset came in round 4: Michail Karakasidis (1964) beat Michail Vassis (FM, 2290), a +326-point gap.
Location
🇬🇷Thessaloniki, Greece
Dates
06 Jul 2025 → 12 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Titled players · 3
FM×1
CM×2
Federations · 1 represented
🇬🇷Greece×43
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsFM Michail Vassis led from R7; +1.5-point edge over the runner-up.
Co-leaders
19
8
3
1
1
3
1
1
1
R7 · LEADER CHANGE10 Jul
FM Michail Vassis takes the sole lead (6.0/7).
R4 · HEAD-TO-HEAD · WINNER VS 2ND
FM Michail Vassis lost to Michail Karakasidis (Black).
WIN STREAKS · 2 top finishers
FM Michail Vassis 3+5 wins (R1–R3, R5–R9)Michail Karakasidis 5 wins (R1–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1FMMichail Vassis | * | 0 | 1 | 1 |
| 2Michail Karakasidis | 1 | * | ½ | 0 |
| 3Nikolaos G Seretis | 0 | ½ | * | — |
| 4Georgios Rafail Mantazis | 0 | 1 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Vassis, MichailFM | 2290 | GRE | +25B | +24N | +2B | −3N | +14B | +8N | +7N | +4B | +10N | 8.0 | 44.5 | 48.5 | 42.00 | 2315 | +8.0 |
| 2 | Seretis, Nikolaos G | 1953 | GRE | +38N | +22B | −1N | +19B | =13B | =6N | +5B | +7N | =3N | 6.5 | 46.5 | 49.0 | 32.25 | 2102 | +74.4 |
| 3 | Karakasidis, Michail | 1964 | GRE | +33N | +29B | +11N | +1B | +9N | −7B | −4N | +13N | =2B | 6.5 | 46.0 | 49.0 | 34.25 | 2115 | +74.0 |
| 4 | Mantazis, Georgios Rafail | 2033 | GRE | +37B | −15N | =28B | +20N | +11B | +18N | +3B | −1N | =8B | 6.0 | 44.5 | 47.5 | 29.75 | 2026 | +2.8 |
| 5 | Boutikos, EleftheriosCM | 1957 | GRE | +32B | +41N | =7B | =13N | =8B | +16B | −2N | =12N | +14B | 6.0 | 41.5 | 43.5 | 26.25 | 2059 | +33.1 |
| 6 | Margaritis, Ioannis M | 2019 | GRE | +23B | −11N | +41B | −15N | +27B | =2B | +21N | =14N | +13B | 6.0 | 40.0 | 42.0 | 25.75 | 1980 | -14.8 |
| 7 | Mavridis, Emmanouil | 2020 | GRE | +43N | +27B | =5N | =9B | +15N | +3N | −1B | −2B | =16N | 5.5 | 46.5 | 47.5 | 24.75 | 2040 | +11.0 |
| 8 | Mylonakis, IoannisCM | 2103 | GRE | =17N | +21B | =19N | +27B | =5N | −1B | +26N | =9B | =4N | 5.5 | 44.0 | 48.0 | 26.25 | 2023 | -30.8 |
| 9 | Ntounias, Ioannis | 1979 | GRE | +31B | +26N | +15B | =7N | −3B | =13N | =14B | =8N | =12B | 5.5 | 42.0 | 46.0 | 26.25 | 2013 | +19.6 |
| 10 | Balafoutas, Alexandros | 1757 | GRE | −16N | =30B | +33N | =22B | +24N | =21B | +18B | +19N | −1B | 5.5 | 40.0 | 43.0 | 23.50 | 1944 | +84.0 |
| 11 | Karakotsios, Konstantinos | 1857 | GRE | +42N | +6B | −3B | =18N | −4N | =22B | +41N | =17B | +21N | 5.5 | 39.5 | 41.0 | 21.25 | 1882 | +16.4 |
| 12 | Theodoridis, Charalampos | 2001 | GRE | −29N | =33B | +42N | =21B | =26N | +15B | +16N | =5B | =9N | 5.5 | 37.0 | 38.5 | 23.00 | 1919 | -28.8 |
| 13 | Lafkidis, Apostolos | 2040 | GRE | +28N | =19B | +16N | =5B | =2N | =9B | +17N | −3B | −6N | 5.0 | 45.5 | 49.5 | 25.50 | 1965 | -33.6 |
| 14 | Giannopoulos, Vasileios | 1891 | GRE | −22N | +32B | +34N | +17B | −1N | +19B | =9N | =6B | −5N | 5.0 | 43.5 | 46.5 | 22.25 | 1912 | +8.4 |
| 15 | Kiryttopoulos, Panagiotis Aris | 1866 | GRE | +36N | +4B | −9N | +6B | −7B | −12N | =30B | =20N | +31B | 5.0 | 41.5 | 44.5 | 23.50 | 1891 | +13.6 |
| 16 | Skodras, Marios Konstantinos | 2053 | GRE | +10B | =18N | −13B | +28N | +25B | −5N | −12B | +27N | =7B | 5.0 | 40.5 | 44.5 | 22.75 | 1941 | -34.4 |
| 17 | Gkogkolas, Georgios | 1781 | GRE | =8B | +20N | =18B | −14N | +28B | +25N | −13B | =11N | =23B | 5.0 | 39.5 | 43.5 | 23.25 | 1900 | +53.6 |
| 18 | Ouzounis, Konstantinos Kyr | 1926 | GRE | +34N | =16B | =17N | =11B | +22N | −4B | −10N | =26B | +25N | 5.0 | 39.5 | 42.5 | 21.25 | 1863 | -26.8 |
| 19 | Demestichas, Petros | 1867 | GRE | +35B | =13N | =8B | −2N | +41B | −14N | +25B | −10B | +24N | 5.0 | 38.5 | 40.5 | 18.25 | 1886 | +8.8 |
| 20 | Siozos, Antonios Damianos | 1635 | GRE | =21N | −17B | +43N | −4B | =23B | +32N | =24N | =15B | +26N | 5.0 | 36.5 | 37.5 | 17.50 | 1870 | +99.2 |
| 21 | Petridis, Dimitrios Panagiotis | 1902 | GRE | =20B | −8N | +40B | =12N | +32B | =10N | −6B | +30N | −11B | 4.5 | 40.5 | 43.0 | 18.00 | 1809 | -39.6 |
| 22 | Exarchos, Paisios | 1625 | GRE | +14B | −2N | +26B | =10N | −18B | =11N | =27B | −25N | +32B | 4.5 | 39.5 | 43.0 | 20.00 | 1835 | +93.2 |
| 23 | Ntagkounakis, Emmanouil | 1720 | GRE | −6N | +36B | −27N | =34B | =20N | −35B | +38N | +41B | =17N | 4.5 | 31.5 | 33.5 | 14.00 | 1684 | -19.6 |
| 24 | Benakis, Ioannis | 1936 | GRE | +30B | −1B | +29N | −25N | −10B | +40N | =20B | =31N | −19B | 4.0 | 39.5 | 42.0 | 15.00 | 1734 | -90.8 |
| 25 | Spiliotopoulos, Spyridon | 1799 | GRE | −1N | +38B | +39N | +24B | −16N | −17B | −19N | +22B | −18B | 4.0 | 39.0 | 41.5 | 13.50 | 1786 | -7.6 |
| 26 | Stralis, Georgios | 1823 | GRE | +39B | −9B | −22N | +36N | =12B | +31N | −8B | =18N | −20B | 4.0 | 38.0 | 40.5 | 14.75 | 1734 | -26.6 |
| 27 | Loukakis, Nikolaos | 1863 | GRE | +40B | −7N | +23B | −8N | −6N | +38B | =22N | −16B | =35N | 4.0 | 36.5 | 39.0 | 13.25 | 1779 | -23.5 |
| 28 | Mitsopoulos, Ioannis | 1733 | GRE | −13B | +35N | =4N | −16B | −17N | −34B | +43B | =36N | +37B | 4.0 | 33.0 | 34.0 | 11.50 | 1760 | +7.2 |
| 29 | Deliezos, Anastasios | 1706 | GRE | +12B | −3N | −24B | −41N | +36B | =30N | =33B | =32N | =34B | 4.0 | 32.5 | 34.5 | 15.25 | 1764 | +21.2 |
| 30 | Linaras, Dimitrios | 1646 | GRE | −24N | =10N | =37B | =39B | +34N | =29B | =15N | −21B | =33B | 4.0 | 32.0 | 34.5 | 14.50 | 1694 | +20.4 |
| 31 | Antonakis, Leonidas | 1688 | GRE | −9N | −42B | =38N | +43B | +39N | −26B | +35N | =24B | −15N | 4.0 | 28.0 | 29.0 | 9.75 | 1677 | -5.2 |
| 32 | Stoimenidis, Markos | 1655 | GRE | −5N | −14N | +35B | +42B | −21N | −20B | +34N | =29B | −22N | 3.5 | 35.0 | 36.5 | 9.50 | 1637 | -14.0 |
| 33 | Tsourgiannis, Nikolaos | 1662 | GRE | −3B | =12N | −10B | −40N | F | +39B | =29N | =35B | =30N | 3.0 | 33.5 | 33.5 | 10.75 | 1627 | -22.8 |
| 34 | Sampsonoglou, Dimitrios | 1644 | GRE | −18B | +37N | −14B | =23N | −30B | +28N | −32B | F | =29N | 3.0 | 33.0 | 35.5 | 11.25 | 1663 | +1.6 |
| 35 | Vlachavas, Athanasios | 1624 | GRE | −19N | −28B | −32N | F | +42B | +23N | −31B | =33N | =27B | 3.0 | 29.5 | 29.5 | 9.50 | 1618 | -2.4 |
| 36 | Maragkozidis, Efstathios | 1605 | GRE | −15B | −23N | F | −26B | −29N | +42N | =40B | =28B | +41N | 3.0 | 27.5 | 27.5 | 6.75 | 1543 | -24.4 |
| 37 | Mamouzelos, Eleftherios | 1727 | GRE | −4N | −34B | =30N | −38B | +43N | −41B | =39N | +42B | −28N | 3.0 | 25.5 | 26.5 | 5.75 | 1579 | -65.2 |
| 38 | Gavriilidis, Nikiforos | 1649 | GRE | −2B | −25N | =31B | +37N | =40B | −27N | −23B | F | =39N | 2.5 | 31.0 | 31.0 | 7.50 | 1579 | -31.2 |
| 39 | Mavridis, Athanasios Theo | 1427 | GRE | −26N | F | −25B | =30N | −31B | −33N | =37B | +43N | =38B | 2.5 | 25.5 | 25.5 | 5.75 | 1574 | +48.0 |
| 40 | Sidiropoulos, Angelos V | 1582 | GRE | −27N | =43B | −21N | +33B | =38N | −24B | =36N | F | F | 2.5 | 25.0 | 25.0 | 6.25 | 1659 | +17.2 |
| 41 | Teligiannidis, Efstathios | 0 | GRE | F | −5B | −6N | +29B | −19N | +37N | −11B | −23N | −36B | 2.0 | 37.0 | 37.0 | 7.00 | 1614 | 0.0 |
| 42 | Ntrekis, Minas | 1464 | GRE | −11B | +31N | −12B | −32N | −35N | −36B | F | −37N | =43B | 1.5 | 28.5 | 28.5 | 4.50 | 1466 | -4.4 |
| 43 | Kyriakogiannakis, Ioannis | 1727 | GRE | −7B | =40N | −20B | −31N | −37B | F | −28N | −39B | =42N | 1.0 | 28.0 | 28.0 | 2.00 | 1340 | -146.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Siozos, Antonios DamianosGRE+99.25.0 pts · #17
- 2Exarchos, PaisiosGRE+93.24.5 pts · #20
- 3Balafoutas, AlexandrosGRE+84.05.5 pts · #5
Top rating losers
- 1Kyriakogiannakis, IoannisGRE-146.01.0 pts · #43
- 2Benakis, IoannisGRE-90.84.0 pts · #25
- 3Mamouzelos, EleftheriosGRE-65.23.0 pts · #36
Biggest upsets
- R4+326 Elo gap
- R8+300 Elo gap
- R1+295 Elo gap