| OP-03846LSS· Oct 20, 2015 | Oct 20, 2015 | Classical | 5 | 1426 | 7 |
| Amagermesterskabet 2015Sundbyoster· Aug 18 – Oct 20, 2015 | Aug 18 – Oct 20, 2015 | Classical | 22 | 1767 | 29 |
| SM-00338LSS· Sep 9 – Oct 20, 2015 | Sep 9 – Oct 20, 2015 | Classical | 7 | 2091 | 21 |
41. ch-BAN B 2015 Dhaka BAN· Oct 15 – 20, 2015 | Oct 15 – 20, 2015 | Classical | 145 | 1932 | 347 |
| Cup European ClubSkopje (Macedonia)· Oct 19, 2015 | Oct 19, 2015 | Classical | 12 | 2251 | 6 |
| FICGS__CHESS__CLASS_B__000232FICGS· Oct 19, 2015 | Oct 19, 2015 | Classical | 7 | 1914 | 17 |
Xtracon Grand Master 2015 Koge DEN· Oct 12 – 18, 2015 | Oct 12 – 18, 2015 | Classical | 18 | 2142 | 17 |
| SD-00240LSS· Oct 18, 2015 | Oct 18, 2015 | Classical | 8 | 1694 | 7 |
2. Pleven Open 2015 Pleven BUL· Oct 17 – 18, 2015 | Oct 17 – 18, 2015 | Classical | 22 | 1892 | 19 |
4. Oliver Gonzalez Memorial Madrid ESP· Oct 10 – 18, 2015 | Oct 10 – 18, 2015 | Classical | 69 | 2198 | 136 |
| We SalSK Salo 2015· Oct 16 – 18, 2015 | Oct 16 – 18, 2015 | Classical | 8 | 1996 | 16 |
Brasil Athenas Engenharia Barreirinhas BRA· Oct 16 – 18, 2015 | Oct 16 – 18, 2015 | Classical | 51 | 1996 | 135 |
37. Arco Open 2015 Arco ITA· Oct 10 – 18, 2015 | Oct 10 – 18, 2015 | Classical | 122 | 1945 | 442 |
| RB-00296LSS· Oct 17 – 18, 2015 | Oct 17 – 18, 2015 | Classical | 9 | 1980 | 25 |
XTRACON GM 2015 Koge DEN· Oct 12 – 18, 2015 | Oct 12 – 18, 2015 | Classical | 68 | 2055 | 269 |
Highlander Cup 2015 Budapest HUN· Oct 17, 2015 | Oct 17, 2015 | Classical | 5 | 2632 | 10 |
| RB-00295LSS· Oct 11 – 16, 2015 | Oct 11 – 16, 2015 | Classical | 8 | 1998 | 23 |
| OP-03841LSS· Oct 14 – 15, 2015 | Oct 14 – 15, 2015 | Classical | 5 | 1758 | 7 |
| SB-00426LSS· Oct 11 – 15, 2015 | Oct 11 – 15, 2015 | Classical | 8 | 1949 | 24 |
| OP-03836LSS· Oct 8 – 15, 2015 | Oct 8 – 15, 2015 | Classical | 6 | 1783 | 9 |
Monte Carlo WGP 2015 Monaco MNC· Oct 3 – 15, 2015 | Oct 3 – 15, 2015 | Classical | 12 | 2518 | 65 |
| SC-00273LSS· Oct 12 – 14, 2015 | Oct 12 – 14, 2015 | Classical | 8 | 1804 | 12 |
| FICGS__CHESS__CLASS_C__000226FICGS· Oct 14, 2015 | Oct 14, 2015 | Classical | 7 | 1894 | 16 |
90. ch-ARG 2015 Buenos Aires ARG· Sep 30 – Oct 14, 2015 | Sep 30 – Oct 14, 2015 | Classical | 18 | 2489 | 116 |
World Blitz Championship Berlin GER· Oct 13 – 14, 2015 | Oct 13 – 14, 2015 | Blitz | 81 | 2636 | 128 |
World Blitz 2015 Berlin GER· Oct 13 – 14, 2015 | Oct 13 – 14, 2015 | Blitz | 195 | 2560 | 2,011 |
| OP-03839LSS· Oct 13, 2015 | Oct 13, 2015 | Classical | 6 | 1792 | 5 |
Millionaire KO U2550 Las Vegas, NV USA· Oct 12 – 13, 2015 | Oct 12 – 13, 2015 | Classical | 4 | 2531 | 12 |
| World Blitz Championship· Oct 13, 2015 | Oct 13, 2015 | Blitz | 21 | 2671 | 16 |
Hull CC 35 Ann Gatineau CAN· Sep 15 – Oct 13, 2015 | Sep 15 – Oct 13, 2015 | Classical | 15 | 1784 | 19 |
Millionaire Chess KO 2015 Las Vegas, NV USA· Oct 12, 2015 | Oct 12, 2015 | Classical | 4 | 2714 | 10 |
I Torneo Sociale Fossano ITA· Sep 7 – Oct 12, 2015 | Sep 7 – Oct 12, 2015 | Classical | 14 | 1763 | 14 |
| 43th Greek Team Championship 2015· Oct 10 – 12, 2015 | Oct 10 – 12, 2015 | Classical | 8 | 1455 | 5 |
Ch City (students) Rio de Janeiro BRA· Oct 10 – 12, 2015 | Oct 10 – 12, 2015 | Classical | 26 | 2050 | 69 |
9. Universidad Central Bogota COL· Oct 8 – 12, 2015 | Oct 8 – 12, 2015 | Classical | 216 | 1962 | 453 |
World Championship (rapid) 2015 Berlin GER· Oct 10 – 12, 2015 | Oct 10 – 12, 2015 | Rapid | 97 | 2638 | 211 |
FSFM October 2015 Budapest HUN· Oct 3 – 12, 2015 | Oct 3 – 12, 2015 | Classical | 6 | 1888 | 29 |
FSIM October 2015 Budapest HUN· Oct 3 – 12, 2015 | Oct 3 – 12, 2015 | Classical | 11 | 2293 | 43 |
43. TCh-GRE 2015 Porto Rio GRE· Oct 8 – 12, 2015 | Oct 8 – 12, 2015 | Classical | 337 | 1903 | 814 |
Washington Chess Congress Washington, DC USA· Oct 7 – 12, 2015 | Oct 7 – 12, 2015 | Classical | 48 | 2092 | 170 |
World Rapid 2015 Berlin GER· Oct 10 – 12, 2015 | Oct 10 – 12, 2015 | Rapid | 168 | 2545 | 1,019 |
Millionaire TB B 2015 Las Vegas, NV USA· Oct 11, 2015 | Oct 11, 2015 | Classical | 4 | 2686 | 6 |
| World Rapid· Oct 11, 2015 | Oct 11, 2015 | Rapid | 11 | 2693 | 7 |
Romanian Super League 2015 Mamaia ROU· Oct 3 – 11, 2015 | Oct 3 – 11, 2015 | Classical | 10 | 2417 | 9 |
1. ch-EUR University women Erevan ARM· Oct 7 – 11, 2015 | Oct 7 – 11, 2015 | Classical | 13 | 2144 | 17 |
Millionaire TB A 2015 Las Vegas, NV USA· Oct 11, 2015 | Oct 11, 2015 | Classical | 5 | 2677 | 9 |
Memorial M.Chigorin Open St Petersburg RUS· Oct 3 – 11, 2015 | Oct 3 – 11, 2015 | Classical | 12 | 2163 | 10 |
It PokerStars IoM Masters Open Douglas ENG· Oct 3 – 11, 2015 | Oct 3 – 11, 2015 | Classical | 10 | 2415 | 8 |
| RA-00414LSS· Sep 30 – Oct 11, 2015 | Sep 30 – Oct 11, 2015 | Classical | 7 | 2162 | 21 |
ch-PUR 2015 Bayamon PUR· Oct 9 – 11, 2015 | Oct 9 – 11, 2015 | Classical | 36 | 1799 | 38 |