32. White Elephant 2023 Umraniye TUR· Oct 25 – 29, 2023 | Oct 25 – 29, 2023 | Classical | 38 | 2080 | 80 |
Perla del Desierto 2023 Ojinaga MEX· Oct 26 – 29, 2023 | Oct 26 – 29, 2023 | Classical | 54 | 1895 | 98 |
Chigorin Memorial 2023 St Petersburg RUS· Oct 21 – 29, 2023 | Oct 21 – 29, 2023 | Classical | 213 | 1831 | 717 |
Marburger Schachtage A Marburg GER· Oct 26 – 29, 2023 | Oct 26 – 29, 2023 | Classical | 121 | 1878 | 360 |
Marburger Schachtage B Marburg GER· Oct 26 – 29, 2023 | Oct 26 – 29, 2023 | Classical | 71 | 1486 | 185 |
Rainer Radtke Mem 2023 Berlin GER· Oct 23 – 29, 2023 | Oct 23 – 29, 2023 | Classical | 99 | 2216 | 207 |
2. Tamil Nadu IM 2023 Chennai IND· Oct 23 – 28, 2023 | Oct 23 – 28, 2023 | Classical | 11 | 2231 | 52 |
26. Hoogeveen Open 2023 Hoogeveen NED· Oct 21 – 28, 2023 | Oct 21 – 28, 2023 | Classical | 37 | 2158 | 160 |
| Vezerkepzo IM Autumn 2023Budapest· Oct 19 – 27, 2023 | Oct 19 – 27, 2023 | Classical | 9 | 2239 | 8 |
Vezerkepzo GM Autumn 2023 Budapest HUN· Oct 19 – 27, 2023 | Oct 19 – 27, 2023 | Classical | 10 | 2389 | 44 |
Vezerkepzo IM Autumn 2023 Budapest HUN· Oct 19 – 27, 2023 | Oct 19 – 27, 2023 | Classical | 11 | 2265 | 52 |
| FICGS__CHESS__NO_ENGINES_TOURNAMENT__000130FICGS· Oct 26, 2023 | Oct 26, 2023 | Classical | 10 | 1965 | 35 |
Mardi 2023.09.26 Laval CAN· Sep 26 – Oct 24, 2023 | Sep 26 – Oct 24, 2023 | Classical | 23 | 1753 | 31 |
Winnipeg TNT 2023.10 Winnipeg CAN· Oct 3 – 24, 2023 | Oct 3 – 24, 2023 | Classical | 21 | 1665 | 24 |
Rooky Int Open 2023 Bangkok THA· Oct 20 – 23, 2023 | Oct 20 – 23, 2023 | Classical | 53 | 1687 | 106 |
| Bundesliga 2023-2456566 Neuwied, Stiftsstraße 1, Germany· Oct 22, 2023 | Oct 22, 2023 | Classical | 12 | 2488 | 6 |
TCh-UKR Blitz 2023 Vinnytsia UKR· Oct 22, 2023 | Oct 22, 2023 | Blitz | 9 | 2245 | 6 |
| Bundesliga 2023-24Viernheim, Germany· Oct 21 – 22, 2023 | Oct 21 – 22, 2023 | Classical | 13 | 2518 | 7 |
| 1. Hybrid City Cup U1800· Oct 21 – 22, 2023 | Oct 21 – 22, 2023 | Classical | 41 | 1406 | 46 |
| Bundesliga 2023-24Kiel, Germany· Oct 21 – 22, 2023 | Oct 21 – 22, 2023 | Classical | 17 | 2577 | 9 |
ECF National Club 2023 Hull ENG· Oct 20 – 22, 2023 | Oct 20 – 22, 2023 | Classical | 17 | 2067 | 37 |
Bundesliga 2023-24 Kiel GER· Oct 21 – 22, 2023 | Oct 21 – 22, 2023 | Classical | 31 | 2565 | 22 |
Bundesliga 2023-24 Neuwied GER· Oct 21 – 22, 2023 | Oct 21 – 22, 2023 | Classical | 27 | 2537 | 21 |
Esbjerg 6 Efteraarsturnering 2023 Esbjerg DEN· Oct 20 – 22, 2023 | Oct 20 – 22, 2023 | Classical | 30 | 1871 | 52 |
33. TCh-SLO 2023 Komenda SLO· Sep 22 – Oct 22, 2023 | Sep 22 – Oct 22, 2023 | Classical | 94 | 2254 | 257 |
Bundesliga 2023-24 Kirchweyhe GER· Oct 21 – 22, 2023 | Oct 21 – 22, 2023 | Classical | 34 | 2457 | 29 |
Bundesliga 2023-24 Viernheim GER· Oct 21 – 22, 2023 | Oct 21 – 22, 2023 | Classical | 32 | 2559 | 29 |
| JSM 2 div. 2023/24Hyvinkaa· Sep 23 – Oct 21, 2023 | Sep 23 – Oct 21, 2023 | Classical | 13 | 1743 | 8 |
Guernsey Challengers 47th Guernsey GCI· Oct 15 – 21, 2023 | Oct 15 – 21, 2023 | Classical | 8 | 1695 | 7 |
| JSM 1 div. 2023/24Loimaa· Sep 23 – Oct 21, 2023 | Sep 23 – Oct 21, 2023 | Classical | 20 | 1909 | 12 |
| JSM 2 div. 2023/24Espoo· Sep 23 – Oct 21, 2023 | Sep 23 – Oct 21, 2023 | Classical | 17 | 1867 | 9 |
JSM 2 div. 2023/24 Jyvaskyla FIN· Sep 23 – Oct 21, 2023 | Sep 23 – Oct 21, 2023 | Classical | 14 | 1838 | 8 |
| Bundesliga 2023-2456566 Neuwied, Stiftsstraße1, Germany· Oct 21, 2023 | Oct 21, 2023 | Classical | 10 | 2523 | 6 |
1. Tamil Nadu IM 2023 Chennai IND· Oct 16 – 21, 2023 | Oct 16 – 21, 2023 | Classical | 11 | 2233 | 53 |
TCh-UKR Rapid 2023 Vinnytsia UKR· Oct 21, 2023 | Oct 21, 2023 | Rapid | 12 | 2268 | 10 |
| JSM 1 div. 2023/24Lahti· Sep 24 – Oct 21, 2023 | Sep 24 – Oct 21, 2023 | Classical | 25 | 1989 | 16 |
Caissa Hotel Kiraz Gp Ayvalik TUR· Oct 19 – 21, 2023 | Oct 19 – 21, 2023 | Classical | 10 | 1940 | 41 |
| JSM 1 div. 2023/24Tampere· Sep 24 – Oct 21, 2023 | Sep 24 – Oct 21, 2023 | Classical | 22 | 2008 | 12 |
Langley Rapid Langley CAN· Oct 21, 2023 | Oct 21, 2023 | Rapid | 10 | 1660 | 12 |
47. Guernsey Open 2023 St James GCI· Oct 15 – 21, 2023 | Oct 15 – 21, 2023 | Classical | 38 | 1940 | 110 |
Champions Cup 2023 Tbilisi GEO· Oct 13 – 21, 2023 | Oct 13 – 21, 2023 | Classical | 20 | 2010 | 84 |
Hvar Open 2023 Hvar CRO· Oct 15 – 21, 2023 | Oct 15 – 21, 2023 | Classical | 74 | 1990 | 184 |
88. ch-ESP 2023 Marbella ESP· Oct 13 – 21, 2023 | Oct 13 – 21, 2023 | Classical | 97 | 2202 | 435 |
TCh-UKR 2023 Vinnytsia UKR· Oct 15 – 20, 2023 | Oct 15 – 20, 2023 | Classical | 8 | 1759 | 5 |
Chigorin Mem Blitz 2023 St Petersburg RUS· Oct 20, 2023 | Oct 20, 2023 | Blitz | 83 | 2046 | 135 |
TCh-SRB 1. League w 2023 Senta SRB· Oct 10 – 20, 2023 | Oct 10 – 20, 2023 | Classical | 57 | 2128 | 277 |
Qatar Masters Open 2023 Doha QAT· Oct 11 – 20, 2023 | Oct 11 – 20, 2023 | Classical | 167 | 2413 | 761 |
| FICGS__CHESS__CLASS_C__000315FICGS· Oct 19, 2023 | Oct 19, 2023 | Classical | 4 | 1657 | 5 |
31. TCh-CRO Div 1b 2023 Veli Losinj CRO· Oct 11 – 19, 2023 | Oct 11 – 19, 2023 | Classical | 71 | 2303 | 264 |
TCh-RUS Rapid w 2023 Sochi RUS· Oct 18 – 19, 2023 | Oct 18 – 19, 2023 | Rapid | 61 | 1965 | 148 |