Cubuk Municipality 10th International Open Chess Tournament - A
SwissStandard
33 players participated in this 9-round tournament, held from 20 Jul 2025 to 25 Jul 2025 in Ankara, Turkey. 22 titled players from 8 federations. Top 10 Elo average was 2338, and top seed was Amirreza Pour Agha Bala (🇮🇷 IRI, IM, 2479).
Okan Ozsakallioglu (🇹🇷 TUR, IM, 2352) won with 6.5/9, ahead of Morteza Darban (6.5) and Alihan Huseyinoglu (6.0). Ozsakallioglu shared the lead from round 5, winning on tie-break.
The biggest upset came in round 4: Sefa Var (1925) beat Toghrul Hasanzade (IM, 2318), a +393-point gap.
Location
🇹🇷Ankara, Turkey
Dates
20 Jul 2025 → 25 Jul 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Titled players · 22
GM×2
IM×9
FM×4
CM×6
WCM×1
Federations · 8 represented
🇹🇷Turkiye×16
🇮🇷Iran×6
🇦🇿Azerbaijan×5
🇹🇲Turkmenistan×2
🇰🇿Kazakhstan×1
🇬🇪Georgia×1
FIDE (no federation)×1
🇿🇦South Africa×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsTight race until R9; 2 players tied at 6.5/9, decided on Buchholz.
Co-leaders
13
2
2
1
2
3
4
2
2
R9 · TIEBREAK CLUSTER
2 players finish on 6.5/9. Ozsakallioglu takes the title on Buchholz Cut1 (44.5).
R6 · HEAD-TO-HEAD · WINNER VS 2ND
IM Okan Ozsakallioglu drew with IM Morteza Darban (Black).
R2–R5 · WIN STREAK
IM Okan Ozsakallioglu won 4 in a row (R2–R5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1IMOkan Ozsakallioglu | * | ½ | ½ | 1 |
| 2IMMorteza Darban | ½ | * | — | ½ |
| 3IMAmirreza Pour Agha Bala | ½ | — | * | ½ |
| 4IMAlihan Huseyinoglu | 0 | ½ | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Ozsakallioglu, OkanIM | 2352 | TUR | −11N | +12B | +10N | +9B | +3B | =2N | =4B | +13N | =5B | 6.5 | 44.5 | 49.0 | 35.00 | 2395 | +5.9 |
| 2 | Darban, MortezaIM | 2273 | IRI | +14B | =20N | =5B | +8N | +26B | =1B | =3N | +11B | =9N | 6.5 | 42.5 | 45.5 | 31.75 | 2375 | +12.4 |
| 3 | Huseyinoglu, AlihanIM | 2316 | TUR | +13N | +11B | =6N | +23B | −1N | +22B | =2B | =4N | =8B | 6.0 | 43.0 | 46.5 | 28.25 | 2388 | +19.2 |
| 4 | Pour Agha Bala, AmirrezaIM | 2479 | IRI | −19N | =7B | +31N | +15B | =12N | +24B | =1N | =3B | +11N | 6.0 | 39.5 | 40.5 | 25.25 | 2323 | -13.7 |
| 5 | Semiyev SuhrapIM | 2248 | TKM | =22N | +10B | =2N | =6B | +23N | =20B | −11N | +12B | =1N | 5.5 | 41.0 | 44.5 | 26.50 | 2288 | +5.6 |
| 6 | Bagaturov, GiorgiGM | 2358 | GEO | +9N | =19B | =3B | =5N | =24N | =12B | +20N | =18B | =10N | 5.5 | 39.5 | 43.0 | 26.25 | 2236 | -12.0 |
| 7 | Schekachikhin, MaksimIM | 2354 | FID | =8B | =4N | +13B | −20N | =14B | +16N | =10B | =17N | +19B | 5.5 | 39.0 | 43.0 | 26.00 | 2246 | -10.2 |
| 8 | Gurbanov, IsmayilCM | 2202 | AZE | =7N | =22B | +15N | −2B | +29B | =13N | =12N | +19B | =3N | 5.5 | 39.0 | 40.5 | 22.00 | 2263 | +17.2 |
| 9 | Bahmani, KooroshCM | 2208 | IRI | −6B | +24N | +17B | −1N | −16B | +29N | +26B | +20N | =2B | 5.5 | 38.0 | 39.5 | 19.75 | 2190 | -2.4 |
| 10 | Aliyev, ElnurCM | 2117 | AZE | +33B | −5N | −1B | =29N | +27B | +14N | =7N | +23B | =6B | 5.5 | 35.0 | 35.5 | 17.25 | 2248 | +31.6 |
| 11 | Rahmanov, ShahriyarFM | 2194 | AZE | +1B | −3N | +30B | −22B | +25N | +26N | +5B | −2N | −4B | 5.0 | 40.0 | 41.5 | 19.50 | 2256 | +15.4 |
| 12 | Azimov, YasinCM | 2058 | AZE | +21B | −1N | =29B | +27N | =4B | =6N | =8B | −5N | =16B | 4.5 | 40.0 | 41.5 | 18.00 | 2149 | +34.8 |
| 13 | Kirilmaz, EmreCM | 2166 | TUR | −3B | +29N | −7N | +31B | +19N | =8B | +22N | −1B | −18N | 4.5 | 37.0 | 38.0 | 12.75 | 2201 | +8.6 |
| 14 | Primbetov, KazbekFM | 2161 | KAZ | −2N | =23B | =25N | +28B | =7N | −10B | +29B | F | +17N | 4.5 | 34.5 | 36.0 | 14.50 | 2094 | -12.0 |
| 15 | Karacan, Arda Tuna | 1916 | TUR | +16B | =31N | −8B | −4N | =17B | −18N | +28B | +27N | =21B | 4.5 | 34.0 | 35.0 | 14.25 | 2027 | +44.5 |
| 16 | Mohandesi, ShahinIM | 1969 | IRI | −15N | =28B | =32N | +18B | +9N | −7B | −19N | +25B | =12N | 4.5 | 34.0 | 34.5 | 16.75 | 2112 | +29.6 |
| 17 | Topal, Hasan Gokmen | 1977 | TUR | +27B | =33N | −9N | =25B | =15N | =23B | +24N | =7B | −14B | 4.5 | 32.5 | 33.0 | 14.50 | 2071 | +19.2 |
| 18 | Akbas, Kaan | 2070 | TUR | −23N | −30B | F | −16N | +28B | +15B | +25N | =6N | +13B | 4.5 | 29.5 | 29.5 | 17.25 | 2054 | -3.6 |
| 19 | Odeev, HandszarGM | 2253 | TKM | +4B | =6N | =20B | −26N | −13B | +21N | +16B | −8N | −7N | 4.0 | 39.5 | 42.5 | 19.25 | 2140 | -12.3 |
| 20 | Asgari, MortezaFM | 2173 | IRI | +32N | =2B | =19N | +7B | =22N | =5N | −6B | −9B | F | 4.0 | 36.5 | 36.5 | 15.75 | 2302 | +27.2 |
| 21 | Var, Sefa | 1925 | TUR | −12N | −27B | =28N | +32B | +30N | −19B | =23N | =24B | =15N | 4.0 | 26.5 | 27.0 | 9.00 | 1977 | +9.6 |
| 22 | Ebrahimi Herab, HamidrezaFM | 2404 | IRI | =5B | =8N | +26B | +11N | =20B | −3N | −13B | F | F | 3.5 | 38.0 | 38.0 | 15.50 | 2189 | -18.6 |
| 23 | Kilic, Cihan | 1943 | TUR | +18B | =14N | +33B | −3N | −5B | =17N | =21B | −10N | −25N | 3.5 | 37.5 | 38.0 | 11.50 | 2031 | +15.8 |
| 24 | Masiya, Mfundo | 1955 | RSA | +25B | −9B | =27N | +30N | =6B | −4N | −17B | =21N | F | 3.5 | 32.5 | 32.5 | 10.50 | 2026 | +9.2 |
| 25 | Aynaoglu, EfeCM | 1914 | TUR | −24N | F | =14B | =17N | −11B | +31N | −18B | −16N | +23B | 3.0 | 31.0 | 31.0 | 9.00 | 1940 | +5.2 |
| 26 | Hatirli, Ugur Can | 2023 | TUR | +28N | +32B | −22N | +19B | −2N | −11B | −9N | F | F | 3.0 | 27.5 | 27.5 | 7.00 | 2174 | +23.8 |
| 27 | Uysal, Kerem | 1920 | TUR | −17N | +21N | =24B | −12B | −10N | −28N | F | −15B | +29N | 2.5 | 30.5 | 30.5 | 7.25 | 1831 | -35.0 |
| 28 | Ozcan, Kadir Kutay | 1917 | TUR | −26B | =16N | =21B | −14N | −18N | +27B | −15N | =29B | F | 2.5 | 29.0 | 29.0 | 7.50 | 1846 | -15.8 |
| 29 | Kucuk, AybikeWCM | 1911 | TUR | F | −13B | =12N | =10B | −8N | −9B | −14N | =28N | −27B | 1.5 | 35.0 | 35.0 | 6.25 | 1842 | -28.0 |
| 30 | Kilic, Ihsan | 1905 | TUR | =31B | +18N | −11N | −24B | −21B | F | F | F | F | 1.5 | 18.0 | 18.0 | 5.00 | 1869 | -5.6 |
| 31 | Derbentli, Cemil Furkan | 1948 | TUR | =30N | =15B | −4B | −13N | F | −25B | F | F | F | 1.0 | 19.5 | 19.5 | 3.00 | 1810 | -38.0 |
| 32 | Hasanzade, ToghrulIM | 2318 | AZE | −20B | −26N | =16B | −21N | F | F | F | F | F | 0.5 | 15.5 | 15.5 | 2.25 | 1701 | -28.5 |
| 33 | Gunduz, Umut ErdemIM | 2268 | TUR | −10N | =17B | −23N | F | F | F | F | F | F | 0.5 | 13.5 | 13.5 | 2.25 | 1739 | -38.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Karacan, Arda TunaTUR+44.54.5 pts · #12
- 2Azimov, YasinCMAZE+34.84.5 pts · #16
- 3Aliyev, ElnurCMAZE+31.65.5 pts · #8
Top rating losers
- 1Gunduz, Umut ErdemIMTUR-38.40.5 pts · #33
- 2Derbentli, Cemil FurkanTUR-38.01.0 pts · #31
- 3Uysal, KeremTUR-35.02.5 pts · #27
Biggest upsets
- R4+393 Elo gap
- R3+325 Elo gap
- R2+295 Elo gap