5th open AO N. Vyronos Mar 2026
27 players participated in this 7-round tournament, held from 07 Mar 2026 to 09 May 2026 in Athens, Greece. Top 10 Elo average was 1756, and top seed was Spiros Stratigos (🇬🇷 GRE, 2124).
Apostolos Palaiologou (🇬🇷 GRE, 1967) won with 6.5/7, ahead of Anastasios Papahristoudis (6.5) and Spiros Stratigos (5.0). Palaiologou shared the lead from round 5, winning on tie-break.
The biggest upset came in round 1: Machnti Chaikal (1411) beat Georgios Angelopoulos (1895), a +484-point gap.
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How it unfolded
Top 6 · 7 roundsTight race until R7; 2 players tied at 6.5/7, decided on Buchholz.
2 players finish on 6.5/7. Palaiologou takes the title on Buchholz Cut1 (29.0).
Anastasios Papahristoudis drew with Apostolos Palaiologou (Black).
Anastasios Papahristoudis 3+3 wins (R1–R3, R5–R7)Apostolos Palaiologou 3+3 wins (R1–R3, R5–R7)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Anastasios Papahristoudis | * | ½ | — | — |
| 2Apostolos Palaiologou | ½ | * | 1 | 1 |
| 3Spiros Stratigos | — | 0 | * | — |
| 4Marios Kontokostas | — | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Palaiologou, Apostolos | 1967 | GRE | +12N | +5B | +4N | =2B | +3N | +6N | +8B | 6.5 | 29.0 | 31.5 | 28.25 | 2169 | +40.4 |
| 2 | Papahristoudis, Anastasios | 1900 | GRE | +18B | +8N | +10B | =1N | +6B | +7N | +13B | 6.5 | 24.5 | 26.0 | 22.75 | 2118 | +24.6 |
| 3 | Stratigos, Spiros | 2124 | GRE | +13B | +9N | −6B | +8N | −1B | +15N | +7B | 5.0 | 25.0 | 27.0 | 16.50 | 1926 | -22.4 |
| 4 | Kontokostas, Marios | 1602 | GRE | +22B | +23N | −1B | +18N | −7B | +10N | +6B | 5.0 | 20.5 | 21.5 | 11.00 | 1803 | +23.8 |
| 5 | Alexopoulos, Andreas | 1569 | GRE | +20B | −1N | +14B | −7N | =18B | +16N | +11N | 4.5 | 19.5 | 20.5 | 9.25 | 1625 | +3.2 |
| 6 | Bizirtsakis, Athanasios | 1728 | GRE | +14B | +11N | +3N | +17B | −2N | −1B | −4N | 4.0 | 28.5 | 30.5 | 12.50 | 1800 | +8.8 |
| 7 | Angelopoulos, Georgios | 1895 | GRE | −15N | +27B | +12N | +5B | +4N | −2B | −3N | 4.0 | 25.5 | 25.5 | 12.00 | 1816 | -6.2 |
| 8 | Kana, Ioulia Marika | 1568 | GRE | +25N | −2B | +26N | −3B | +19N | +11B | −1N | 4.0 | 22.0 | 22.0 | 4.00 | 1710 | +16.8 |
| 9 | Gkogka, Elvis | 1587 | GRE | +21N | −3B | +19N | +24B | =10B | =13N | F | 4.0 | 14.5 | 15.5 | 6.00 | 1679 | +10.6 |
| 10 | Gkogka, Klevis | 1613 | GRE | +27N | +15B | −2N | +11B | =9N | −4B | F | 3.5 | 23.0 | 23.0 | 7.00 | 1575 | -3.2 |
| 11 | Tsoukalas, Dimitrios | 1529 | GRE | +26B | −6B | +15N | −10N | +21B | −8N | −5B | 3.0 | 19.0 | 19.0 | 3.00 | 820 | -61.6 |
| 12 | Michalopoulos, Nikolaos | 1499 | GRE | −1B | +20N | −7B | +16N | =14N | F | F | 2.5 | 19.5 | 20.5 | 4.25 | 1097 | -6.4 |
| 13 | Biris, Dimitrios | 1511 | GRE | −3N | F | +23B | F | +17N | =9B | −2N | 2.5 | 19.5 | 19.5 | 5.00 | 1669 | +21.6 |
| 14 | FIDE 42187842 | 0 | — | −6N | +25B | −5N | F | =12B | −18N | +20B | 2.5 | 13.5 | 13.5 | 2.25 | 1239 | 0.0 |
| 15 | Chaikal, Machnti | 1411 | GRE | +7B | −10N | −11B | +25N | F | −3B | F | 2.0 | 16.5 | 16.5 | 4.00 | 1591 | 0.0 |
| 16 | FIDE 42186072 | 0 | — | F | −17N | F | −12B | +22N | −5B | +25N | 2.0 | 10.0 | 10.0 | 1.00 | 757 | 0.0 |
| 17 | Lazaridis, Nikolaos | 1573 | GRE | F | +16B | +24N | −6N | −13B | F | F | 2.0 | 9.5 | 9.5 | 3.00 | 1455 | -23.2 |
| 18 | Papakonstantinou, Evangelia | 1449 | GRE | −2N | F | F | −4B | =5N | +14B | F | 1.5 | 23.5 | 23.5 | 4.75 | 1401 | -8.4 |
| 19 | Vlassopoulos, Nikolaos G | 1432 | GRE | F | F | −9B | +20N | −8B | F | F | 1.0 | 11.5 | 11.5 | 1.00 | 793 | -24.8 |
| 20 | FIDE 25860666 | 0 | — | −5N | −12B | +22N | −19B | F | F | −14N | 1.0 | 11.5 | 11.5 | 1.00 | 706 | 0.0 |
| 21 | Gkalstyan, Grigor | 0 | GRE | −9B | F | F | F | −11N | +?B | F | 1.0 | 11.5 | 11.5 | 0.00 | 759 | -23.6 |
| 22 | FIDE 541010604 | 0 | — | −4N | F | −20B | F | −16B | F | +?N | 1.0 | 10.5 | 10.5 | 0.00 | 803 | 0.0 |
| 23 | FIDE 42181755 | 0 | — | F | −4B | −13N | F | +25B | F | F | 1.0 | 8.5 | 8.5 | 0.00 | 761 | 0.0 |
| 24 | Katsilidis, Efraim Christodoulos | 1483 | GRE | F | F | −17B | −9N | F | +26B | F | 1.0 | 6.0 | 6.0 | 0.00 | 794 | -29.6 |
| 25 | Papakonstantinou, Ioannis | 0 | GRE | −8B | −14N | F | −15B | −23N | F | −16B | 0.0 | 12.5 | 12.5 | 0.00 | 800 | 0.0 |
| 26 | FIDE 541020340 | 0 | — | −11N | F | −8B | F | F | −24N | F | 0.0 | 11.5 | 11.5 | 0.00 | 743 | 0.0 |
| 27 | FIDE 541028228 | 0 | — | −10B | −7N | F | F | F | F | F | 0.0 | 8.5 | 8.5 | 0.00 | 940 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Palaiologou, ApostolosGRE+40.46.5 pts · #2
- 2Papahristoudis, AnastasiosGRE+24.66.5 pts · #1
- 3Kontokostas, MariosGRE+23.85.0 pts · #7
- 1Tsoukalas, DimitriosGRE-61.63.0 pts · #16
- 2Katsilidis, Efraim ChristodoulosGRE-29.61.0 pts · #18
- 3Vlassopoulos, Nikolaos GGRE-24.81.0 pts · #24
- R1+484 Elo gap
- R3+396 Elo gap
- R5+157 Elo gap