Caissa Hotel Piano 2025 Ayvalik TUR· Sep 18 – 23, 2025 | Sep 18 – 23, 2025 | Classical | 10 | 2236 | 44 |
SixDays Budapest 3 Yr IMB Budapest HUN· Sep 18 – 23, 2025 | Sep 18 – 23, 2025 | Classical | 9 | 2255 | 42 |
SixDays Budapest 3 Yr IMA Budapest HUN· Sep 18 – 23, 2025 | Sep 18 – 23, 2025 | Classical | 10 | 2147 | 44 |
SixDays Budapest 3 Yr GMB Budapest HUN· Sep 18 – 23, 2025 | Sep 18 – 23, 2025 | Classical | 10 | 2317 | 41 |
ch-Vienna State 2025 Vienna AUT· Sep 13 – 21, 2025 | Sep 13 – 21, 2025 | Classical | 10 | 2323 | 44 |
Castling in the Castle Aglie ITA· Sep 21, 2025 | Sep 21, 2025 | Classical | 58 | 2206 | 74 |
20th Malaysian Open 2025 Kuala Lumpur MAS· Sep 15 – 21, 2025 | Sep 15 – 21, 2025 | Classical | 52 | 2103 | 62 |
Reykjavik CC Autumn 2025 Reykjavik ISL· Sep 3 – 21, 2025 | Sep 3 – 21, 2025 | Classical | 9 | 2254 | 39 |
exe Slovakia Open 2025 Bratislava SVK· Sep 13 – 21, 2025 | Sep 13 – 21, 2025 | Classical | 137 | 1985 | 532 |
TCh-ESP Rapid 2025 Zafra ESP· Sep 20, 2025 | Sep 20, 2025 | Rapid | 113 | 2058 | 231 |
Szansa Open Rapid 2025 Warsaw POL· Sep 20, 2025 | Sep 20, 2025 | Rapid | 81 | 2120 | 186 |
20. Malaysian Open 2025 Kuala Lumpur MAS· Sep 19, 2025 | Sep 19, 2025 | Classical | 16 | 2135 | 8 |
Euro Uni Rapid Open 2025 Budapest HUN· Sep 17 – 19, 2025 | Sep 17 – 19, 2025 | Rapid | 28 | 2231 | 36 |
Euro Uni Rapid Women 2025 Budapest HUN· Sep 17 – 19, 2025 | Sep 17 – 19, 2025 | Rapid | 10 | 2072 | 14 |
XL Open Basque Country Sestao ESP· Sep 12 – 18, 2025 | Sep 12 – 18, 2025 | Classical | 40 | 2327 | 52 |
SixDays Budapest Sept Budapest HUN· Sep 12 – 17, 2025 | Sep 12 – 17, 2025 | Classical | 56 | 2296 | 237 |
XIV Copa Independencia Mexico City MEX· Sep 11 – 16, 2025 | Sep 11 – 16, 2025 | Classical | 53 | 2008 | 165 |
Caissa Hotel Violin 2025 Altinova TUR· Sep 11 – 16, 2025 | Sep 11 – 16, 2025 | Classical | 10 | 2235 | 45 |
FIDE Grand Swiss 2025 Samarkand UZB· Sep 4 – 15, 2025 | Sep 4 – 15, 2025 | Classical | 116 | 2575 | 635 |
FIDE Women's Grand Swiss Samarkand UZB· Sep 4 – 15, 2025 | Sep 4 – 15, 2025 | Classical | 56 | 2389 | 301 |
TCh-ITA Women 2025 Montesilvano ITA· Sep 12 – 14, 2025 | Sep 12 – 14, 2025 | Classical | 34 | 1965 | 40 |
I Rio Chess Masters 2025 Rio de Janeiro BRA· Sep 6 – 14, 2025 | Sep 6 – 14, 2025 | Classical | 25 | 2301 | 105 |
23. Premier League BIH Banja Luka BIH· Sep 7 – 14, 2025 | Sep 7 – 14, 2025 | Classical | 70 | 2268 | 241 |
23rd Premier League BIH Banja Luka BIH· Sep 7 – 14, 2025 | Sep 7 – 14, 2025 | Classical | 52 | 2208 | 145 |
ch-MGL 2025 Bayankhongor MGL· Sep 3 – 14, 2025 | Sep 3 – 14, 2025 | Classical | 12 | 2379 | 66 |
30th Hotel Adriatico 2025 Montesilvano ITA· Sep 7 – 14, 2025 | Sep 7 – 14, 2025 | Classical | 31 | 2130 | 124 |
Atyrau Chess Masters IM Atyrau KAZ· Sep 6 – 14, 2025 | Sep 6 – 14, 2025 | Classical | 12 | 2354 | 43 |
Atyrau Chess Masters WIM Atyrau KAZ· Sep 6 – 14, 2025 | Sep 6 – 14, 2025 | Classical | 10 | 2139 | 44 |
TCh-POL 1st League 2025 Chotowa POL· Sep 6 – 14, 2025 | Sep 6 – 14, 2025 | Classical | 143 | 2140 | 507 |
Craiova Grand Prix Rapid Craiova ROU· Sep 13 – 14, 2025 | Sep 13 – 14, 2025 | Rapid | 137 | 2004 | 300 |
ch-HUN Blitz 2025 Budapest HUN· Sep 13, 2025 | Sep 13, 2025 | Blitz | 12 | 2391 | 66 |
NK Snelschaken Final 2025 Rotterdam NED· Sep 13, 2025 | Sep 13, 2025 | Classical | 13 | 2390 | 69 |
TCh-BUL 2025 Primorsko BUL· Sep 7 – 11, 2025 | Sep 7 – 11, 2025 | Classical | 37 | 1997 | 47 |
Golden Horse IM 2025 Hajduszoboszlo HUN· Sep 5 – 10, 2025 | Sep 5 – 10, 2025 | Classical | 10 | 2194 | 44 |
58th Iranian Men 1404 Urmia IRI· Sep 5 – 10, 2025 | Sep 5 – 10, 2025 | Classical | 10 | 2243 | 39 |
Rubi IM Closed 2025 Rubi ESP· Sep 4 – 10, 2025 | Sep 4 – 10, 2025 | Classical | 10 | 2271 | 44 |
TCh-BIH Premier women Banja Luka BIH· Sep 7 – 10, 2025 | Sep 7 – 10, 2025 | Classical | 21 | 1828 | 33 |
Golden Horse GM 2025 Hajduszoboszlo HUN· Sep 5 – 10, 2025 | Sep 5 – 10, 2025 | Classical | 10 | 2320 | 43 |
Saint Charbel Cup 3 2025 Morshyn UKR· Sep 3 – 9, 2025 | Sep 3 – 9, 2025 | Classical | 10 | 2389 | 45 |
32nd Nikaia Open 2025 Nikaia GRE· Sep 2 – 9, 2025 | Sep 2 – 9, 2025 | Classical | 48 | 1933 | 89 |
Sahel Chess Festival 2025 Monastir TUN· Sep 2 – 8, 2025 | Sep 2 – 8, 2025 | Classical | 20 | 2175 | 84 |
III Turkic Universiade Cholpon-Ata KGZ· Sep 4 – 8, 2025 | Sep 4 – 8, 2025 | Classical | 20 | 2092 | 40 |
70th Iowa Open 2025 Iowa City USA· Sep 6 – 7, 2025 | Sep 6 – 7, 2025 | Classical | 6 | 2140 | 5 |
7. Bamberg Open 2025 Bamberg GER· Sep 3 – 7, 2025 | Sep 3 – 7, 2025 | Classical | 72 | 2081 | 99 |
7th Bamberg Open 2025 Bamberg GER· Sep 3 – 7, 2025 | Sep 3 – 7, 2025 | Classical | 67 | 2068 | 86 |
ch-POR 2025 Matosinhos POR· Aug 31 – Sep 7, 2025 | Aug 31 – Sep 7, 2025 | Classical | 10 | 2314 | 45 |
Montreal Open 2025 Montreal CAN· Sep 3 – 7, 2025 | Sep 3 – 7, 2025 | Classical | 77 | 1989 | 214 |
Marshall Sept Premier New York USA· Sep 5 – 7, 2025 | Sep 5 – 7, 2025 | Classical | 42 | 2060 | 46 |
TCh-POL 2nd League 2025 Jastrzebia Gora POL· Aug 30 – Sep 7, 2025 | Aug 30 – Sep 7, 2025 | Classical | 402 | 1983 | 1,369 |
Hull 4NCL Congress 2025 Hull ENG· Sep 5 – 7, 2025 | Sep 5 – 7, 2025 | Classical | 39 | 2011 | 85 |