PNWCC WOW Open Redmond WA USA· Dec 27 – 31, 2021 | Dec 27 – 31, 2021 | Classical | 5 | 2460 | 7 |
| RA-00701LSS· Dec 27 – 31, 2021 | Dec 27 – 31, 2021 | Classical | 5 | 2051 | 9 |
Vezerkepzo GM Christmas Budapest HUN· Dec 26 – 31, 2021 | Dec 26 – 31, 2021 | Classical | 10 | 2385 | 30 |
Vezerkepzo IM Christmas Budapest HUN· Dec 26 – 31, 2021 | Dec 26 – 31, 2021 | Classical | 10 | 2233 | 30 |
46. ch-BAN 2021 Dhaka BAN· Dec 27 – 31, 2021 | Dec 27 – 31, 2021 | Classical | 16 | 2213 | 42 |
30. Donau Open 2021 Aschach AUT· Dec 26 – 31, 2021 | Dec 26 – 31, 2021 | Classical | 42 | 2162 | 69 |
| T186-A40LSS· Dec 30 – 31, 2021 | Dec 30 – 31, 2021 | Classical | 7 | 1445 | 24 |
32. Cracovia Open A Krakow POL· Dec 27 – 31, 2021 | Dec 27 – 31, 2021 | Classical | 84 | 2216 | 214 |
| FICGS__CHESS__CLASS_A__000254FICGS· Dec 30, 2021 | Dec 30, 2021 | Classical | 6 | 2092 | 15 |
Marseille Christmas IM Marseille FRA· Dec 26 – 30, 2021 | Dec 26 – 30, 2021 | Classical | 10 | 2375 | 35 |
Vergani Cup Dec 2021 Cattolica ITA· Dec 26 – 30, 2021 | Dec 26 – 30, 2021 | Classical | 53 | 2182 | 126 |
18. Mont de Marsan Mont de Marsan FRA· Dec 26 – 30, 2021 | Dec 26 – 30, 2021 | Classical | 19 | 2112 | 25 |
31. North American Open Las Vegas, NV USA· Dec 26 – 30, 2021 | Dec 26 – 30, 2021 | Classical | 69 | 2189 | 114 |
Charlotte Open 2021 Charlotte USA· Dec 26 – 30, 2021 | Dec 26 – 30, 2021 | Classical | 61 | 2216 | 181 |
World Blitz Women 2021 Warsaw POL· Dec 29 – 30, 2021 | Dec 29 – 30, 2021 | Blitz | 105 | 2260 | 872 |
1. BICA Pawn Open 2021 Sousse TUN· Dec 24 – 30, 2021 | Dec 24 – 30, 2021 | Classical | 129 | 1906 | 467 |
World Blitz 2021 Warsaw POL· Dec 29 – 30, 2021 | Dec 29 – 30, 2021 | Blitz | 190 | 2522 | 1,946 |
Bremen Silvester Open Bremen GER· Dec 27 – 30, 2021 | Dec 27 – 30, 2021 | Classical | 112 | 1801 | 338 |
| OP-05234LSS· Dec 28 – 29, 2021 | Dec 28 – 29, 2021 | Classical | 7 | 1436 | 11 |
| RM-00250LSS· Dec 29, 2021 | Dec 29, 2021 | Classical | 7 | 2134 | 20 |
| RA-00700LSS· Dec 24 – 29, 2021 | Dec 24 – 29, 2021 | Classical | 10 | 2058 | 36 |
| QM-00120LSS· Dec 28, 2021 | Dec 28, 2021 | Classical | 5 | 2130 | 18 |
| RB-00411LSS· Dec 13 – 28, 2021 | Dec 13 – 28, 2021 | Classical | 5 | 1926 | 9 |
World Rapid Women 2021 Warsaw POL· Dec 26 – 28, 2021 | Dec 26 – 28, 2021 | Rapid | 102 | 2268 | 539 |
World Rapid 2021 Warsaw POL· Dec 26 – 28, 2021 | Dec 26 – 28, 2021 | Rapid | 182 | 2532 | 1,170 |
| RA-00699LSS· Dec 20 – 27, 2021 | Dec 20 – 27, 2021 | Classical | 8 | 2093 | 25 |
| T204-E08LSS· Dec 23 – 26, 2021 | Dec 23 – 26, 2021 | Classical | 7 | 1913 | 32 |
3. Sat Djenovici Dec FM Djenovici MNE· Dec 18 – 26, 2021 | Dec 18 – 26, 2021 | Classical | 8 | 1900 | 11 |
GM ASK 5 2021 Arandjelovac SRB· Dec 19 – 25, 2021 | Dec 19 – 25, 2021 | Classical | 10 | 2416 | 42 |
ASK IM 3 2021 Arandjelovac SRB· Dec 19 – 25, 2021 | Dec 19 – 25, 2021 | Classical | 10 | 2258 | 44 |
8. Sunway Sitges TB 5-8 Sitges ESP· Dec 23, 2021 | Dec 23, 2021 | Classical | 4 | 1971 | 9 |
7. Gashimov Mem Blitz Baku AZE· Dec 22 – 23, 2021 | Dec 22 – 23, 2021 | Blitz | 8 | 2717 | 55 |
| SB-00627LSS· Dec 20 – 23, 2021 | Dec 20 – 23, 2021 | Classical | 8 | 1947 | 27 |
North Am Junior Girls U21 Charlotte USA· Dec 19 – 23, 2021 | Dec 19 – 23, 2021 | Classical | 10 | 1887 | 18 |
CCCSA Holiday IM 2021 Charlotte USA· Dec 19 – 23, 2021 | Dec 19 – 23, 2021 | Classical | 11 | 2247 | 50 |
CCCSA Holiday GM 2021 Charlotte USA· Dec 19 – 23, 2021 | Dec 19 – 23, 2021 | Classical | 10 | 2434 | 44 |
Vezerkepzo GM Dec 2021 Budapest HUN· Dec 15 – 23, 2021 | Dec 15 – 23, 2021 | Classical | 10 | 2398 | 45 |
North American Junior U20 Charlotte USA· Dec 19 – 23, 2021 | Dec 19 – 23, 2021 | Classical | 45 | 2062 | 72 |
18. Vandoeuvre Open 2021 Vandoeuvre les Nancy FRA· Dec 19 – 23, 2021 | Dec 19 – 23, 2021 | Classical | 28 | 2378 | 42 |
Vezerkepzo IM Dec 2021 Budapest HUN· Dec 15 – 23, 2021 | Dec 15 – 23, 2021 | Classical | 10 | 2221 | 41 |
Portuguese Masters 2021-2 Gaia POR· Dec 17 – 23, 2021 | Dec 17 – 23, 2021 | Classical | 11 | 2166 | 49 |
8. Sunway Sitges TB 1-4 Sitges ESP· Dec 23, 2021 | Dec 23, 2021 | Classical | 4 | 2631 | 9 |
8. Sunway Sitges 2021 Sitges ESP· Dec 13 – 23, 2021 | Dec 13 – 23, 2021 | Classical | 245 | 2237 | 674 |
| World Youth Super Finals - Open 18Tornelo INT· Dec 18 – 22, 2021 | Dec 18 – 22, 2021 | Classical | 6 | 2308 | 10 |
| World Youth Super Finals - Open 14Tornelo INT· Dec 18 – 22, 2021 | Dec 18 – 22, 2021 | Classical | 6 | 2242 | 10 |
81. ch-GEO 1. League Tbilisi GEO· Dec 14 – 22, 2021 | Dec 14 – 22, 2021 | Classical | 19 | 2028 | 45 |
7. Gashimov Mem Rapid Baku AZE· Dec 18 – 21, 2021 | Dec 18 – 21, 2021 | Rapid | 8 | 2717 | 64 |
RADNICKICHESS IM Dec T2 Belgrade SRB· Dec 13 – 21, 2021 | Dec 13 – 21, 2021 | Classical | 11 | 2245 | 43 |
2. EJCOA Forest Hall Inv Newcastle ENG· Dec 17 – 21, 2021 | Dec 17 – 21, 2021 | Classical | 10 | 2296 | 45 |
XXX Elgoibar GM 2021 Elgoibar ESP· Dec 14 – 20, 2021 | Dec 14 – 20, 2021 | Classical | 10 | 2367 | 43 |