ACC Sirius open classic Apr 2026
17 players participated in this 5-round tournament, held from 19 Apr 2026 to 17 May 2026 in Petroupoli, Greece. 2 federations represented. Top 10 Elo average was 1802, and top seed was Konstantinos Kesoglou (🇬🇷 GRE, 1964).
Konstantinos Kesoglou (🇬🇷 GRE, 1964) won with 4.5/5, ahead of Dimitrios Vazelakis (4.0) and Haralambos Fanos (3.5). Kesoglou broke clear in the final round.
The biggest upset came in round 2: Athanasios Nikogeorgos (1684) beat Nikolaos Alexandros Dallas (1816), a +132-point gap.
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How it unfolded
Top 6 · 5 roundsKonstantinos Kesoglou led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Konstantinos Kesoglou held the sole lead from R5 through R5 without losing it.
Konstantinos Kesoglou drew with Dimitrios Vazelakis (Black).
Konstantinos Kesoglou 3 wins (R1–R3)Dimitrios Vazelakis 3 wins (R1–R3)Haralambos Fanos 3 wins (R2–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Konstantinos Kesoglou | * | ½ | — | — |
| 2Dimitrios Vazelakis | ½ | * | ½ | 1 |
| 3Haralambos Fanos | — | ½ | * | — |
| 4Anastasios Kratidis | — | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kesoglou, Konstantinos | 1964 | GRE | +12B | +7N | +5B | =2N | +8B | 4.5 | 11.5 | 13.0 | 11.00 | 2145 | +16.6 |
| 2 | Vazelakis, Dimitrios | 1938 | GRE | +4N | +8B | +9N | =1B | =3N | 4.0 | 13.5 | 15.5 | 11.50 | 2039 | +12.8 |
| 3 | Fanos, Haralambos | 1929 | GRE | F | +12N | +7B | +5N | =2B | 3.5 | 11.0 | 11.0 | 9.00 | 2127 | +15.8 |
| 4 | Kratidis, Anastasios | 1687 | GRE | −2B | +10N | +13B | +11N | =6B | 3.5 | 10.5 | 12.0 | 6.50 | 1836 | +20.2 |
| 5 | Mastoras, Ilias I. | 1777 | GRE | +15B | +14N | −1N | −3B | +9N | 3.0 | 11.5 | 12.5 | 4.50 | 1837 | +8.0 |
| 6 | Dallas, Nikolaos Alexandros | 1816 | GRE | =11N | −9B | +16N | +14B | =4N | 3.0 | 8.5 | 9.0 | 4.50 | 1717 | -12.0 |
| 7 | Stenos, Ioannis | 1733 | GRE | +16N | −1B | −3N | +13B | =11B | 2.5 | 11.0 | 11.5 | 2.75 | 1722 | -1.2 |
| 8 | Zoghbi, Jean Paul | 1730 | LBN | +10B | −2N | F | +9B | −1N | 2.0 | 12.5 | 13.5 | 4.00 | 1766 | +7.6 |
| 9 | Nikogeorgos, Athanasios | 1684 | GRE | +13B | +6N | −2B | −8N | −5B | 2.0 | 12.0 | 13.5 | 4.50 | 1676 | -1.6 |
| 10 | Nikitidis, Vasilios | 1476 | GRE | −8N | −4B | F | +17B | +16N | 2.0 | 6.5 | 6.5 | 1.00 | 1518 | +2.6 |
| 11 | Pavlis, Antonios | 1724 | GRE | =6B | F | =14N | −4B | =7N | 1.5 | 10.5 | 10.5 | 3.50 | 1627 | -11.0 |
| 12 | Kapagiannidis, Konstantinos | 1720 | GRE | −1N | −3B | =17N | =16B | =13N | 1.5 | 10.0 | 10.5 | 1.25 | 1529 | -19.6 |
| 13 | Tsimvrakidis, Alexandros | 0 | GRE | −9N | +16B | −4N | −7N | =12B | 1.5 | 9.5 | 10.0 | 1.25 | 1518 | +7.2 |
| 14 | Kotsifis, Emmanouel | 1621 | GRE | +17N | −5B | =11B | −6N | F | 1.5 | 8.0 | 8.0 | 1.25 | 1499 | -8.0 |
| 15 | Atmatzidi Oikonomidi, Iro | 1628 | GRE | −5N | +17B | F | F | F | 1.0 | 5.5 | 5.5 | 0.50 | 977 | -6.0 |
| 16 | Georgopoulos, Georgios D | 1514 | GRE | −7B | −13N | −6B | =12N | −10B | 0.5 | 9.0 | 10.5 | 0.75 | 1279 | -48.0 |
| 17 | FIDE 541025350 | 0 | — | −14B | −15N | =12B | −10N | F | 0.5 | 6.0 | 6.0 | 0.75 | 1288 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Kratidis, AnastasiosGRE+20.23.5 pts · #4
- 2Kesoglou, KonstantinosGRE+16.64.5 pts · #1
- 3Fanos, HaralambosGRE+15.83.5 pts · #3
- 1Georgopoulos, Georgios DGRE-48.00.5 pts · #15
- 2Kapagiannidis, KonstantinosGRE-19.61.5 pts · #12
- 3Dallas, Nikolaos AlexandrosGRE-12.03.0 pts · #6
- R2+132 Elo gap