25. European Teams Batumi GEO· Oct 5 – 14, 2025 | Oct 5 – 14, 2025 | Classical | 12 | 2322 | 10 |
ch-RUS Blitz 2025 Sochi RUS· Oct 14, 2025 | Oct 14, 2025 | Blitz | 7 | 2336 | 6 |
RUS Ch Blitz w 2025 Sochi RUS· Oct 14, 2025 | Oct 14, 2025 | Blitz | 62 | 2088 | 208 |
25th European Teams Women Batumi GEO· Oct 5 – 14, 2025 | Oct 5 – 14, 2025 | Classical | 179 | 2185 | 647 |
25th European Teams Batumi GEO· Oct 5 – 14, 2025 | Oct 5 – 14, 2025 | Classical | 197 | 2442 | 716 |
RUS Ch Blitz 2025 Sochi RUS· Oct 14, 2025 | Oct 14, 2025 | Blitz | 147 | 2283 | 457 |
4. Skyline Open 2025 Dulles USA· Oct 10 – 13, 2025 | Oct 10 – 13, 2025 | Classical | 36 | 2036 | 35 |
Maritime Chess Open 2025 Summerside, PE CAN· Oct 11 – 13, 2025 | Oct 11 – 13, 2025 | Classical | 18 | 2012 | 24 |
4th Skyline Open 2025 Dulles USA· Oct 10 – 13, 2025 | Oct 10 – 13, 2025 | Classical | 55 | 1972 | 83 |
Texas Norm Super Swiss Houston, TX USA· Oct 8 – 13, 2025 | Oct 8 – 13, 2025 | Classical | 27 | 2270 | 105 |
75. ch-RUS w 2025 Moscow RUS· Oct 2 – 12, 2025 | Oct 2 – 12, 2025 | Classical | 12 | 2364 | 60 |
1. Liga Central SRB 2025 Novi Pazar SRB· Oct 11 – 12, 2025 | Oct 11 – 12, 2025 | Classical | 40 | 2261 | 21 |
47. Arco Open 2025 Arco ITA· Oct 4 – 12, 2025 | Oct 4 – 12, 2025 | Classical | 128 | 1943 | 74 |
Odense Mester 2 2025 Odense DEN· Oct 10 – 12, 2025 | Oct 10 – 12, 2025 | Classical | 6 | 2009 | 15 |
75th ch-RUS w 2025 Moscow RUS· Oct 2 – 12, 2025 | Oct 2 – 12, 2025 | Classical | 12 | 2364 | 60 |
78th ch-RUS 2025 Moscow RUS· Oct 2 – 12, 2025 | Oct 2 – 12, 2025 | Classical | 11 | 2428 | 55 |
Belgrade Premier League Belgrade SRB· Oct 2 – 12, 2025 | Oct 2 – 12, 2025 | Classical | 123 | 2070 | 366 |
47th Arco Open 2025 Arco ITA· Oct 4 – 12, 2025 | Oct 4 – 12, 2025 | Classical | 189 | 1856 | 633 |
Odense Mester 1 2025 Odense DEN· Oct 10 – 12, 2025 | Oct 10 – 12, 2025 | Classical | 6 | 2229 | 14 |
Odense Mesterskabsgruppen Odense DEN· Oct 10 – 12, 2025 | Oct 10 – 12, 2025 | Classical | 6 | 2392 | 14 |
78. ch-RUS 2025 Moscow RUS· Oct 2 – 12, 2025 | Oct 2 – 12, 2025 | Classical | 12 | 2589 | 66 |
Fagernes GM Swiss Aut Fagernes NOR· Oct 5 – 12, 2025 | Oct 5 – 12, 2025 | Classical | 60 | 2213 | 255 |
1st Liga Central SRB 2025 Novi Pazar SRB· Oct 4 – 12, 2025 | Oct 4 – 12, 2025 | Classical | 84 | 2213 | 319 |
| First Saturday IM October 2026Budapest· Oct 4 – 11, 2025 | Oct 4 – 11, 2025 | Classical | 10 | 2239 | 9 |
31. Tamil Nadu IM 2025 Chennai IND· Oct 11, 2025 | Oct 11, 2025 | Classical | 11 | 2246 | 6 |
FSGM October 2025 Budapest HUN· Oct 4 – 11, 2025 | Oct 4 – 11, 2025 | Classical | 10 | 2409 | 39 |
FSIM October 2025 Budapest HUN· Oct 4 – 11, 2025 | Oct 4 – 11, 2025 | Classical | 11 | 2244 | 52 |
31st Tamil Nadu IM 2025 Chennai IND· Oct 5 – 11, 2025 | Oct 5 – 11, 2025 | Classical | 10 | 2256 | 42 |
BA Chess Title IM 2025 Buenos Aires ARG· Oct 2 – 10, 2025 | Oct 2 – 10, 2025 | Classical | 11 | 2262 | 44 |
ch-PER 2025 Lima PER· Oct 8 – 10, 2025 | Oct 8 – 10, 2025 | Classical | 82 | 1889 | 189 |
CHN Nat Open Suzhou 2025 Suzhou, Jiangsu CHN· Oct 6 – 10, 2025 | Oct 6 – 10, 2025 | Classical | 91 | 1734 | 255 |
CHN Nat Open Suzhou 2025 Suzdal RUS· Oct 6, 2025 | Oct 6, 2025 | Classical | 89 | 1737 | 46 |
Oer-Erkenschwick GM 2025 Oer-Erkenschwick GER· Sep 30 – Oct 5, 2025 | Sep 30 – Oct 5, 2025 | Classical | 10 | 2468 | 41 |
ch-Euro Seniors Women +50 Rabac CRO· Sep 27 – Oct 5, 2025 | Sep 27 – Oct 5, 2025 | Classical | 11 | 1909 | 43 |
Dragomanov Fit Blitz Kyiv UKR· Oct 5, 2025 | Oct 5, 2025 | Blitz | 21 | 2087 | 84 |
23rd ch-Euro Seniors +50 Rabac CRO· Sep 27 – Oct 5, 2025 | Sep 27 – Oct 5, 2025 | Classical | 35 | 2158 | 88 |
CHN League Division A Pt2 Beijing CHN· Oct 2 – 5, 2025 | Oct 2 – 5, 2025 | Classical | 75 | 2375 | 150 |
Oer-Erkenschwick IM 2025 Oer-Erkenschwick GER· Sep 30 – Oct 5, 2025 | Sep 30 – Oct 5, 2025 | Classical | 10 | 2379 | 42 |
23rd ch-Euro Seniors +65 Rabac CRO· Sep 27 – Oct 5, 2025 | Sep 27 – Oct 5, 2025 | Classical | 50 | 2127 | 87 |
German Youth Teams 2025 Oer-Erkenschwick GER· Oct 2 – 5, 2025 | Oct 2 – 5, 2025 | Classical | 137 | 1974 | 390 |
Checkmate: USA vs India Arlington, TX USA· Oct 4, 2025 | Oct 4, 2025 | Classical | 10 | 2569 | 7 |
| ch-TTO 2025St Ann's TRI· Sep 13 – Oct 4, 2025 | Sep 13 – Oct 4, 2025 | Classical | 12 | 1956 | 57 |
ch-POL Rapid 2025 Lublin POL· Oct 4, 2025 | Oct 4, 2025 | Rapid | 210 | 1997 | 421 |
Dragomanov Fit Masters Kyiv UKR· Sep 30 – Oct 4, 2025 | Sep 30 – Oct 4, 2025 | Classical | 20 | 2041 | 89 |
4. Mallorca Int. Masters Inca ESP· Sep 28 – Oct 3, 2025 | Sep 28 – Oct 3, 2025 | Classical | 11 | 2212 | 43 |
GCT Finals 2025 Sao Paulo BRA· Sep 28 – Oct 3, 2025 | Sep 28 – Oct 3, 2025 | Classical | 4 | 2764 | 32 |
IV Mallorca Int. Masters Inca ESP· Sep 28 – Oct 3, 2025 | Sep 28 – Oct 3, 2025 | Classical | 9 | 2201 | 34 |
White Horse GM 2025 Mosonmagyarovar HUN· Sep 25 – Oct 2, 2025 | Sep 25 – Oct 2, 2025 | Classical | 10 | 2396 | 40 |
White Horse IM 2025 Mosonmagyarovar HUN· Sep 25 – Oct 2, 2025 | Sep 25 – Oct 2, 2025 | Classical | 10 | 2262 | 43 |
23. RCC Int. Classical Mangalore IND· Sep 25 – 30, 2025 | Sep 25 – 30, 2025 | Classical | 74 | 1816 | 96 |