| SB-00550LSS· Oct 23 – 29, 2018 | Oct 23 – 29, 2018 | Classical | 8 | 1935 | 27 |
13. Deizisau Autumn Open Deizisau GER· Oct 26 – 29, 2018 | Oct 26 – 29, 2018 | Classical | 51 | 2088 | 78 |
Manitoba Ch U20 Winnipeg CAN· Oct 27 – 28, 2018 | Oct 27 – 28, 2018 | Classical | 6 | 1534 | 6 |
| 11. Chess Rapid FestivalThessaloniki, Hotel Filippeio· Oct 27 – 28, 2018 | Oct 27 – 28, 2018 | Rapid | 8 | 2031 | 7 |
3. Sat Djenovici Oct FM Djenovici MNE· Oct 20 – 28, 2018 | Oct 20 – 28, 2018 | Classical | 6 | 1856 | 28 |
3. Sat Djenovici Oct GM Djenovici MNE· Oct 20 – 28, 2018 | Oct 20 – 28, 2018 | Classical | 10 | 2383 | 44 |
3. Sat Djenovici Oct IM Djenovici MNE· Oct 20 – 28, 2018 | Oct 20 – 28, 2018 | Classical | 11 | 2261 | 54 |
| FICGS__CHESS__RAPID_B__000300FICGS· Oct 28, 2018 | Oct 28, 2018 | Classical | 8 | 1819 | 24 |
Jack Taylor mem. Victoria CAN· Oct 26 – 28, 2018 | Oct 26 – 28, 2018 | Classical | 21 | 1911 | 22 |
Four Seasons FM 2018 Rijeka CRO· Oct 20 – 28, 2018 | Oct 20 – 28, 2018 | Classical | 10 | 1872 | 35 |
Haarlem Masters 2018 Haarlem NED· Oct 20 – 28, 2018 | Oct 20 – 28, 2018 | Classical | 10 | 2342 | 44 |
Guelph Fall Pro-Am Guelph CAN· Oct 27 – 28, 2018 | Oct 27 – 28, 2018 | Classical | 12 | 1948 | 24 |
Max Zavanelli Mem Open Vilnius LTU· Oct 22 – 28, 2018 | Oct 22 – 28, 2018 | Classical | 59 | 2186 | 248 |
SPICE Cup Open 2018 Saint Louis USA· Oct 23 – 28, 2018 | Oct 23 – 28, 2018 | Classical | 40 | 2358 | 164 |
TCh-POL Ekstraliga 2018 Poland POL· Jun 8 – Oct 28, 2018 | Jun 8 – Oct 28, 2018 | Classical | 85 | 2427 | 274 |
TCh-SUI 2018 Switzerland SUI· Mar 25 – Oct 28, 2018 | Mar 25 – Oct 28, 2018 | Classical | 131 | 2293 | 398 |
TCh-SLO Div 1 West 2018 Slovenia SLO· Sep 28 – Oct 28, 2018 | Sep 28 – Oct 28, 2018 | Classical | 100 | 2038 | 258 |
| Guernsey International HolidayVale· Oct 21 – 27, 2018 | Oct 21 – 27, 2018 | Classical | 14 | 1728 | 11 |
44. Guernsey International Open Vale GCI· Oct 21 – 27, 2018 | Oct 21 – 27, 2018 | Classical | 45 | 2008 | 90 |
Van Foreest-Fedoseev m Hoogeveen NED· Oct 21 – 27, 2018 | Oct 21 – 27, 2018 | Classical | 2 | 2665 | 6 |
| OP-04660LSS· Oct 24 – 27, 2018 | Oct 24 – 27, 2018 | Classical | 6 | 1654 | 9 |
| RD-00148LSS· Oct 17 – 27, 2018 | Oct 17 – 27, 2018 | Classical | 8 | 1653 | 13 |
22. Hoogeveen Final 4 Hoogeveen NED· Oct 26 – 27, 2018 | Oct 26 – 27, 2018 | Classical | 5 | 2640 | 9 |
Svidler-Shankland m 2018 Hoogeveen NED· Oct 21 – 27, 2018 | Oct 21 – 27, 2018 | Classical | 2 | 2739 | 6 |
8. Salamanca Uni Masters Salamanca ESP· Oct 24 – 27, 2018 | Oct 24 – 27, 2018 | Classical | 8 | 2498 | 28 |
| SC-00361LSS· Oct 17 – 27, 2018 | Oct 17 – 27, 2018 | Classical | 8 | 1899 | 24 |
17. Menton Open 2018 Menton FRA· Oct 21 – 27, 2018 | Oct 21 – 27, 2018 | Classical | 26 | 2178 | 35 |
| Guernsey International Holiday· Oct 21 – 27, 2018 | Oct 21 – 27, 2018 | Classical | 36 | 1670 | 53 |
44. Guernsey Open 2018 Vale GCI· Oct 21 – 27, 2018 | Oct 21 – 27, 2018 | Classical | 27 | 2043 | 27 |
22. Hoogeveen Open 2018 Hoogeveen NED· Oct 20 – 27, 2018 | Oct 20 – 27, 2018 | Classical | 88 | 2181 | 369 |
18. Sautron Open 2018 Sautron FRA· Oct 21 – 27, 2018 | Oct 21 – 27, 2018 | Classical | 49 | 2167 | 95 |
| 44. Guernsey International Open· Oct 21 – 27, 2018 | Oct 21 – 27, 2018 | Classical | 45 | 2016 | 181 |
| FICGS__CHESS__CLASS_B__000289FICGS· Oct 26, 2018 | Oct 26, 2018 | Classical | 5 | 2008 | 7 |
Paraguay Champions 2018 Asuncion PAR· Oct 20 – 26, 2018 | Oct 20 – 26, 2018 | Classical | 11 | 2031 | 58 |
| FICGS__CHESS__CLASS_A__000199FICGS· Oct 26, 2018 | Oct 26, 2018 | Classical | 10 | 2089 | 34 |
1. Shakh Club Open 2018 Baku AZE· Oct 20 – 26, 2018 | Oct 20 – 26, 2018 | Classical | 23 | 1712 | 36 |
Montreal Vendredi 10 Montreal CAN· Oct 12 – 26, 2018 | Oct 12 – 26, 2018 | Classical | 4 | 2165 | 6 |
Liffre Open 2018 Liffre FRA· Oct 20 – 26, 2018 | Oct 20 – 26, 2018 | Classical | 20 | 2333 | 35 |
RSHSH Master Cup Oct 2018 Moscow RUS· Oct 17 – 25, 2018 | Oct 17 – 25, 2018 | Classical | 10 | 2276 | 41 |
Scarborough CC Howard Ridout Toronto CAN· Sep 13 – Oct 25, 2018 | Sep 13 – Oct 25, 2018 | Classical | 19 | 1775 | 33 |
| OP-04659LSS· Oct 22 – 23, 2018 | Oct 22 – 23, 2018 | Classical | 6 | 1943 | 11 |
Almaty Open 2018 Almaty KAZ· Oct 16 – 23, 2018 | Oct 16 – 23, 2018 | Classical | 31 | 2349 | 87 |
IND-CHN Summit 2015 Bhubaneswar IND· Oct 17 – 23, 2018 | Oct 17 – 23, 2018 | Classical | 10 | 2476 | 42 |
| RA-00603LSS· Oct 22 – 23, 2018 | Oct 22 – 23, 2018 | Classical | 7 | 2105 | 21 |
Mukachevo Masters 2018 Mukachevo UKR· Oct 17 – 22, 2018 | Oct 17 – 22, 2018 | Classical | 11 | 2189 | 53 |
| RA-00602LSS· Oct 22, 2018 | Oct 22, 2018 | Classical | 8 | 2219 | 27 |
| OP-04658LSS· Oct 22, 2018 | Oct 22, 2018 | Classical | 6 | 1792 | 13 |
SCO National Chess Open Xingtai CHN· Oct 14 – 22, 2018 | Oct 14 – 22, 2018 | Classical | 55 | 2231 | 239 |
Corsican Circuit Final Bastia FRA· Oct 21 – 22, 2018 | Oct 21 – 22, 2018 | Classical | 16 | 2628 | 34 |
SCO National Chess Open Shanghai CHN· Oct 14 – 21, 2018 | Oct 14 – 21, 2018 | Classical | 11 | 2269 | 9 |