ACC Sirius Open Sep 2025
20 players participated in this 5-round tournament, held from 09 Sept 2025 to 05 Oct 2025 in Athens, Greece. 2 federations represented. Top 10 Elo average was 1765, and top seed was Konstantinos Kesoglou (🇬🇷 GRE, 1905).
Konstantinos Kesoglou (🇬🇷 GRE, 1905) won with 4.5/5, ahead of Dimitrios Vazelakis (4.0) and Anastasios Kratidis (4.0). Kesoglou won solo starting round 4.
The biggest upset came in round 4: Sofia Ritinioti (1466) beat Evangelos Pitsinos (1674), a +208-point gap.
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How it unfolded
Top 6 · 5 roundsKonstantinos Kesoglou led from R4; +0.5-point edge over the runner-up.
Konstantinos Kesoglou held the sole lead from R4 through R5 without losing it.
Konstantinos Kesoglou beat Dimitrios Vazelakis (White).
Konstantinos Kesoglou 4 wins (R1–R4)Dimitrios Vazelakis 3 wins (R1–R3)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Konstantinos Kesoglou | * | 1 | ½ | — |
| 2Dimitrios Vazelakis | 0 | * | — | 1 |
| 3Ilias I. Mastoras | ½ | — | * | — |
| 4Anastasios Kratidis | — | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kesoglou, Konstantinos | 1905 | GRE | +9N | +6B | +11N | +2B | =4B | 4.5 | 13.5 | 15.5 | 13.50 | 2116 | +20.0 |
| 2 | Vazelakis, Dimitrios | 1862 | GRE | +15N | +10B | +3N | −1N | +5B | 4.0 | 14.0 | 15.5 | 11.00 | 1972 | +14.4 |
| 3 | Kratidis, Anastasios | 1728 | GRE | +14N | +5B | −2B | +10N | +8B | 4.0 | 12.0 | 13.5 | 9.50 | 1920 | +26.8 |
| 4 | Mastoras, Ilias I. | 1803 | GRE | +17B | =12N | +13B | +11B | =1N | 4.0 | 9.5 | 10.5 | 7.50 | 1906 | +13.4 |
| 5 | Ter-Gevorkian, Giannis | 1905 | GRE | +13B | −3N | +12B | +6N | −2N | 3.0 | 12.5 | 14.0 | 6.00 | 1749 | -17.6 |
| 6 | Pavlis, Antonios | 1716 | GRE | +18B | −1N | +17B | −5B | +12N | 3.0 | 10.0 | 11.0 | 3.50 | 1720 | +0.4 |
| 7 | Pitsinos, Evangelos | 1674 | GRE | −12B | +14N | +18B | −8N | +16B | 3.0 | 6.5 | 7.5 | 3.50 | 1379 | -47.2 |
| 8 | Ritinioti, Sofia | 1466 | GRE | +16N | −11N | =9B | +7B | −3N | 2.5 | 11.5 | 12.5 | 5.25 | 1637 | +42.8 |
| 9 | Giannoukakos, Nikolaos | 1602 | GRE | −1B | F | =8N | +15B | +11N | 2.5 | 10.5 | 11.5 | 4.75 | 1759 | +15.6 |
| 10 | Kapagiannidis, Konstantinos | 1689 | GRE | +20N | −2N | +16B | −3B | =13N | 2.5 | 10.5 | 10.5 | 1.75 | 1561 | -12.6 |
| 11 | dos Ramos, Geryen | 1767 | SUR | +19N | +8B | −1B | −4N | −9B | 2.0 | 13.5 | 14.5 | 3.50 | 1570 | -24.2 |
| 12 | Chondroglou, Stergios | 1559 | GRE | +7N | =4B | −5N | F | −6B | 1.5 | 13.0 | 14.0 | 5.00 | 1688 | +11.2 |
| 13 | Nikolopoulos, Spyridon K | 1588 | GRE | −5N | +19B | −4N | F | =10B | 1.5 | 10.5 | 11.5 | 2.25 | 1616 | +2.0 |
| 14 | Chatzikyriakos, Christos | 0 | GRE | −3B | −7B | =15N | +20N | F | 1.5 | 9.5 | 9.5 | 0.75 | 1344 | 0.0 |
| 15 | Kiloukiotis, Dimitrios | 1516 | GRE | −2B | −18N | =14B | −9N | +20B | 1.5 | 9.0 | 9.0 | 0.75 | 932 | -19.6 |
| 16 | Ritiniotis, Nikolaos | 1485 | GRE | −8B | F | −10N | +19B | −7N | 1.0 | 10.5 | 11.5 | 1.00 | 1369 | -12.0 |
| 17 | Mourtzouni, Maria | 1508 | GRE | −4N | +20B | −6N | F | F | 1.0 | 10.0 | 10.0 | 0.00 | 960 | -7.6 |
| 18 | Hajderaj, Eduart | 0 | GRE | −6N | +15B | −7N | F | F | 1.0 | 9.0 | 10.0 | 1.50 | 1511 | 0.0 |
| 19 | Papadopoulos, Emanouil | 1432 | GRE | −11B | −13N | +20B | −16N | F | 1.0 | 5.5 | 5.5 | 0.00 | 813 | -33.6 |
| 20 | Papasotiriou, Markella | 0 | GRE | −10B | −17N | −19N | −14B | −15N | 0.0 | 6.5 | 7.5 | 0.00 | 732 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Ritinioti, SofiaGRE+42.82.5 pts · #7
- 2Kratidis, AnastasiosGRE+26.84.0 pts · #4
- 3Kesoglou, KonstantinosGRE+20.04.5 pts · #1
- 1Pitsinos, EvangelosGRE-47.23.0 pts · #13
- 2Papadopoulos, EmanouilGRE-33.61.0 pts · #18
- 3dos Ramos, GeryenSUR-24.22.0 pts · #9
- R4+208 Elo gap
- R2+177 Elo gap
- R5+165 Elo gap