A10 Championship ESSThH Thessaloniki GRE· Aug 19 – 22, 2021 | Aug 19 – 22, 2021 | Classical | 15 | 1201 | 36 |
| Smuk Skak EMT M2 2021Skanderborg· Aug 20 – 22, 2021 | Aug 20 – 22, 2021 | Classical | 5 | 2144 | 6 |
2. Montaiguillon Rapid Montagne FRA· Aug 22, 2021 | Aug 22, 2021 | Rapid | 27 | 2042 | 43 |
Smuk Skak GM 2021 Skanderborg DEN· Aug 14 – 22, 2021 | Aug 14 – 22, 2021 | Classical | 10 | 2451 | 45 |
Wuerttemberg Masters 2021 Weissach GER· Aug 18 – 22, 2021 | Aug 18 – 22, 2021 | Classical | 8 | 2289 | 28 |
14. Agzamov Mem 2021 Tashkent UZB· Aug 16 – 22, 2021 | Aug 16 – 22, 2021 | Classical | 45 | 2387 | 96 |
BEL Ch 2021 Bruges BEL· Aug 14 – 22, 2021 | Aug 14 – 22, 2021 | Classical | 10 | 2408 | 45 |
U8 Youth Championship ESSThH 2021 Thessaloniki GRE· Aug 19 – 22, 2021 | Aug 19 – 22, 2021 | Classical | 8 | 1159 | 15 |
57. Rubinstein Mem Open Polanica Zdroj POL· Aug 14 – 22, 2021 | Aug 14 – 22, 2021 | Classical | 61 | 2138 | 260 |
54. Mislata Open 2021 Mislata ESP· Aug 16 – 22, 2021 | Aug 16 – 22, 2021 | Classical | 50 | 1941 | 85 |
28. Poznan Open 2021 Poznan POL· Aug 15 – 22, 2021 | Aug 15 – 22, 2021 | Classical | 102 | 1571 | 298 |
Turning Torso Chess 2021 Malmo SWE· Aug 21 – 22, 2021 | Aug 21 – 22, 2021 | Classical | 10 | 2506 | 90 |
| QA-00012LSS· Aug 20 – 21, 2021 | Aug 20 – 21, 2021 | Classical | 5 | 1969 | 18 |
91. ch-URU 2021 Montevideo URU· Mar 13 – Aug 21, 2021 | Mar 13 – Aug 21, 2021 | Classical | 10 | 2259 | 40 |
29. TCh-MKD 2021 Struga MKD· Aug 15 – 21, 2021 | Aug 15 – 21, 2021 | Classical | 72 | 2170 | 163 |
Stare Mesto Open 2021 Stare Mesto CZE· Aug 13 – 21, 2021 | Aug 13 – 21, 2021 | Classical | 55 | 1920 | 143 |
57. Rubinstein Mem GM Polanica Zdroj POL· Aug 13 – 21, 2021 | Aug 13 – 21, 2021 | Classical | 10 | 2599 | 45 |
| QB-00019LSS· Aug 3 – 20, 2021 | Aug 3 – 20, 2021 | Classical | 4 | 1746 | 12 |
| T179-D93LSS· Aug 16 – 20, 2021 | Aug 16 – 20, 2021 | Classical | 6 | 1753 | 26 |
| Youth World Cup U18 PrelTornelo INT· Aug 16 – 20, 2021 | Aug 16 – 20, 2021 | Classical | 132 | 1940 | 594 |
Ustron Open A 2021 Ustron POL· Aug 13 – 20, 2021 | Aug 13 – 20, 2021 | Classical | 41 | 2246 | 173 |
Brugse Meesters 2021 Bruges BEL· Aug 14 – 20, 2021 | Aug 14 – 20, 2021 | Classical | 33 | 2174 | 45 |
21. ch-EUR Indiv w 2021 Iasi ROU· Aug 9 – 20, 2021 | Aug 9 – 20, 2021 | Classical | 120 | 2165 | 662 |
| OP-05177LSS· Aug 18 – 19, 2021 | Aug 18 – 19, 2021 | Classical | 5 | 1315 | 7 |
| T178-E03LSS· Aug 15 – 18, 2021 | Aug 15 – 18, 2021 | Classical | 5 | 2053 | 18 |
| FICGS__CHESS__CLASS_C__000295FICGS· Aug 18, 2021 | Aug 18, 2021 | Classical | 8 | 1787 | 18 |
RADNICKICHESS IM Aug T2 Belgrade SRB· Aug 10 – 18, 2021 | Aug 10 – 18, 2021 | Classical | 10 | 2296 | 39 |
| RB-00406LSS· Aug 4 – 18, 2021 | Aug 4 – 18, 2021 | Classical | 7 | 1798 | 21 |
| FICGS__CHESS__RAPID_B__000367FICGS· Aug 18, 2021 | Aug 18, 2021 | Classical | 7 | 1834 | 17 |
| RA-00686LSS· Aug 12 – 18, 2021 | Aug 12 – 18, 2021 | Classical | 7 | 2078 | 21 |
| FICGS__CHESS__CLASS_D__000279FICGS· Aug 17, 2021 | Aug 17, 2021 | Classical | 7 | 1579 | 6 |
FSGM August 2021 Budapest HUN· Aug 7 – 17, 2021 | Aug 7 – 17, 2021 | Classical | 10 | 2394 | 45 |
FSIM August 2021 Budapest HUN· Aug 7 – 17, 2021 | Aug 7 – 17, 2021 | Classical | 15 | 2187 | 64 |
51. Continental Open Sturbridge USA· Aug 12 – 16, 2021 | Aug 12 – 16, 2021 | Classical | 33 | 2216 | 112 |
Smyslov Region Group Cup Moscow RUS· Aug 16, 2021 | Aug 16, 2021 | Classical | 22 | 2665 | 154 |
| FICGS__CHESS__WCH_STAGE_1_GROUP_08__000024FICGS· Aug 15, 2021 | Aug 15, 2021 | Classical | 5 | 1869 | 16 |
| FICGS__CHESS__WCH_STAGE_1_GROUP_09__000024FICGS· Aug 15, 2021 | Aug 15, 2021 | Classical | 5 | 1717 | 19 |
Uppsala GM 2021 Uppsala SWE· Aug 9 – 15, 2021 | Aug 9 – 15, 2021 | Classical | 10 | 2454 | 45 |
Smyslov Memorial 2021 Moscow RUS· Aug 7 – 15, 2021 | Aug 7 – 15, 2021 | Classical | 10 | 2640 | 45 |
| SB-00620LSS· Aug 8 – 15, 2021 | Aug 8 – 15, 2021 | Classical | 9 | 1895 | 32 |
Saint Louis Blitz 2021 Saint Louis USA· Aug 14 – 15, 2021 | Aug 14 – 15, 2021 | Blitz | 10 | 2746 | 85 |
Ostravsky Konik Open A Ostrava CZE· Aug 7 – 15, 2021 | Aug 7 – 15, 2021 | Classical | 21 | 2197 | 59 |
19. Spilimbergo Open Spilimbergo ITA· Aug 9 – 15, 2021 | Aug 9 – 15, 2021 | Classical | 60 | 2349 | 107 |
Riga Tech Open A 2021 Riga LAT· Aug 9 – 15, 2021 | Aug 9 – 15, 2021 | Classical | 127 | 2279 | 306 |
4. Solta Open 2021 Grohote CRO· Aug 8 – 15, 2021 | Aug 8 – 15, 2021 | Classical | 114 | 2015 | 223 |
Uppsala IM Gp2 2021 Uppsala SWE· Aug 9 – 15, 2021 | Aug 9 – 15, 2021 | Classical | 10 | 2242 | 45 |
PNWCC Summer of Seattle Redmond WA USA· Aug 11 – 15, 2021 | Aug 11 – 15, 2021 | Classical | 10 | 2450 | 41 |
| We LahS A 2021· Aug 14 – 15, 2021 | Aug 14 – 15, 2021 | Classical | 14 | 2001 | 28 |
Uppsala IM Gp1 2021 Uppsala SWE· Aug 9 – 15, 2021 | Aug 9 – 15, 2021 | Classical | 10 | 2277 | 45 |
| OP-05175LSS· Aug 13 – 14, 2021 | Aug 13 – 14, 2021 | Classical | 6 | 1582 | 12 |