| RB-00383LSS· Dec 15 – 25, 2019 | Dec 15 – 25, 2019 | Classical | 7 | 2005 | 21 |
| FICGS__CHESS__CLASS_B__000316FICGS· Dec 25, 2019 | Dec 25, 2019 | Classical | 6 | 2022 | 15 |
| OP-04899LSS· Dec 23 – 24, 2019 | Dec 23 – 24, 2019 | Classical | 6 | 1890 | 12 |
| RC-00238LSS· Dec 23 – 24, 2019 | Dec 23 – 24, 2019 | Classical | 7 | 1849 | 12 |
Brome-Missisquoi Open Granby CAN· Nov 22 – Dec 24, 2019 | Nov 22 – Dec 24, 2019 | Classical | 18 | 1903 | 34 |
Yinzhou Cup Women 2019 Ningbo CHN· Dec 22 – 23, 2019 | Dec 22 – 23, 2019 | Classical | 4 | 2424 | 12 |
ch-UAE President Cup 2019 Abudhabi UAE· Dec 17 – 23, 2019 | Dec 17 – 23, 2019 | Classical | 16 | 1778 | 38 |
Yinzhou Cup Men 2019 Ningbo CHN· Dec 22 – 23, 2019 | Dec 22 – 23, 2019 | Classical | 5 | 2760 | 18 |
Tri Kralja Closed 2019 Kragujevac SRB· Dec 17 – 23, 2019 | Dec 17 – 23, 2019 | Classical | 10 | 2270 | 36 |
Sunway Sitges Open TB Sitges ESP· Dec 22, 2019 | Dec 22, 2019 | Classical | 8 | 2602 | 20 |
December Evenings B 2019 Chelyabinsk RUS· Dec 14 – 22, 2019 | Dec 14 – 22, 2019 | Classical | 13 | 2370 | 45 |
| SA-00709LSS· Dec 16 – 22, 2019 | Dec 16 – 22, 2019 | Classical | 7 | 1941 | 21 |
HUN Ch Women 2019 Budapest HUN· Dec 12 – 22, 2019 | Dec 12 – 22, 2019 | Classical | 9 | 2096 | 25 |
Dnipro Head Cup GM 2019 Dnipro UKR· Dec 16 – 22, 2019 | Dec 16 – 22, 2019 | Classical | 11 | 2319 | 42 |
Israeli Open 2019 Jerusalem ISR· Dec 12 – 22, 2019 | Dec 12 – 22, 2019 | Classical | 51 | 2029 | 158 |
Jerusalem FIDE Grand Prix Jerusalem ISR· Dec 11 – 22, 2019 | Dec 11 – 22, 2019 | Classical | 17 | 2741 | 68 |
Australasian Masters GM Melbourne AUS· Dec 14 – 22, 2019 | Dec 14 – 22, 2019 | Classical | 10 | 2396 | 45 |
26. Zadar Open A 2019 Zadar CRO· Dec 15 – 22, 2019 | Dec 15 – 22, 2019 | Classical | 53 | 2293 | 217 |
68. ch-HUN 2019 Budapest HUN· Dec 10 – 22, 2019 | Dec 10 – 22, 2019 | Classical | 16 | 2512 | 44 |
IM Donaldson Championship San Francisco, CA USA· Dec 21 – 22, 2019 | Dec 21 – 22, 2019 | Classical | 24 | 1862 | 31 |
6. Arica Open 2019 Arica CHI· Dec 15 – 22, 2019 | Dec 15 – 22, 2019 | Classical | 29 | 2322 | 40 |
December Evenings A 2019 Chelyabinsk RUS· Dec 14 – 22, 2019 | Dec 14 – 22, 2019 | Classical | 11 | 1984 | 46 |
29. TCh-SLO National Slovenia SLO· Sep 6 – Dec 22, 2019 | Sep 6 – Dec 22, 2019 | Classical | 84 | 2272 | 265 |
Sunway Sitges Open 2019 Sitges ESP· Dec 13 – 22, 2019 | Dec 13 – 22, 2019 | Classical | 251 | 2286 | 518 |
Moma Vucicevic Mem 2019 Belgrade SRB· Dec 22, 2019 | Dec 22, 2019 | Classical | 61 | 2310 | 95 |
| OP-04898LSS· Dec 21, 2019 | Dec 21, 2019 | Classical | 5 | 1822 | 9 |
Australasian Masters IM Melbourne AUS· Dec 14 – 21, 2019 | Dec 14 – 21, 2019 | Classical | 12 | 2291 | 40 |
CZE Ch Blitz Women 2019 Prague CZE· Dec 21, 2019 | Dec 21, 2019 | Blitz | 23 | 2072 | 45 |
| Celebration ChessSquare 2019· Nov 9 – Dec 21, 2019 | Nov 9 – Dec 21, 2019 | Classical | 20 | 1674 | 18 |
CZE Ch Blitz 2019 Prague CZE· Dec 21, 2019 | Dec 21, 2019 | Blitz | 55 | 2261 | 104 |
2. Ferreira do Alentejo Ferreira do Alentejo POR· Dec 17 – 21, 2019 | Dec 17 – 21, 2019 | Classical | 22 | 2067 | 91 |
1. Barreau de Paris GM Paris FRA· Dec 16 – 20, 2019 | Dec 16 – 20, 2019 | Classical | 10 | 2354 | 44 |
19. Deaf Olympiad Team Chiavenna ITA· Dec 14 – 20, 2019 | Dec 14 – 20, 2019 | Classical | 61 | 1895 | 109 |
World Chess Woman Summit Xi'an CHN· Dec 19 – 20, 2019 | Dec 19 – 20, 2019 | Classical | 8 | 2494 | 28 |
79. ch-UKR Women 2019 Lutsk UKR· Dec 10 – 19, 2019 | Dec 10 – 19, 2019 | Classical | 10 | 2235 | 45 |
Kazakhstan Cup Final women Almaty KAZ· Dec 12 – 19, 2019 | Dec 12 – 19, 2019 | Classical | 11 | 2225 | 47 |
Kazakhstan Cup Final 2019 Almaty KAZ· Dec 12 – 19, 2019 | Dec 12 – 19, 2019 | Classical | 10 | 2472 | 41 |
88. ch-UKR 2019 Lutsk UKR· Dec 10 – 19, 2019 | Dec 10 – 19, 2019 | Classical | 10 | 2603 | 45 |
CHN Ch Blitz Women 2019 Shenyang CHN· Dec 18 – 19, 2019 | Dec 18 – 19, 2019 | Blitz | 14 | 2061 | 63 |
57. ch-IND 2019 Majitar IND· Dec 10 – 19, 2019 | Dec 10 – 19, 2019 | Classical | 116 | 2161 | 287 |
CHN Ch Blitz 2019 Shenyang CHN· Dec 18 – 19, 2019 | Dec 18 – 19, 2019 | Blitz | 23 | 2478 | 107 |
| FICGS__CHESS__CLASS_C__000275FICGS· Dec 18, 2019 | Dec 18, 2019 | Classical | 5 | 1748 | 6 |
| OP-04895LSS· Dec 16 – 18, 2019 | Dec 16 – 18, 2019 | Classical | 5 | 1541 | 6 |
| Central Am. Caribbean U20Couva TRI· Dec 13 – 18, 2019 | Dec 13 – 18, 2019 | Classical | 27 | 1610 | 76 |
| 2. Stamatopoulos Memorial· Nov 6 – Dec 18, 2019 | Nov 6 – Dec 18, 2019 | Classical | 22 | 1769 | 21 |
CHN Ch Rapid Women 2019 Shenyang CHN· Dec 17 – 18, 2019 | Dec 17 – 18, 2019 | Rapid | 14 | 2061 | 61 |
CHN Ch Rapid 2019 Shenyang CHN· Dec 17 – 18, 2019 | Dec 17 – 18, 2019 | Rapid | 23 | 2477 | 108 |
XXIX Elgoibar GM 2019 Elgoibar ESP· Dec 12 – 18, 2019 | Dec 12 – 18, 2019 | Classical | 11 | 2379 | 49 |
31. Carlos Torre Memorial Merida MEX· Dec 13 – 18, 2019 | Dec 13 – 18, 2019 | Classical | 69 | 2341 | 152 |
| RA-00652LSS· Dec 16 – 17, 2019 | Dec 16 – 17, 2019 | Classical | 7 | 2148 | 21 |