85. Tata Steel Masters Wijk aan Zee NED· Jan 14 – 29, 2023 | Jan 14 – 29, 2023 | Classical | 16 | 2747 | 116 |
| ECTCC Women 2023Tornelo INT· Jan 29, 2023 | Jan 29, 2023 | Classical | 52 | 1841 | 195 |
Tata Steel Challengers Wijk aan Zee NED· Jan 14 – 29, 2023 | Jan 14 – 29, 2023 | Classical | 15 | 2587 | 100 |
9. Floripa Open 2023 Florianopolis BRA· Jan 23 – 29, 2023 | Jan 23 – 29, 2023 | Classical | 549 | 1722 | 2,029 |
77. ch-AZE Final 2023 Baku AZE· Jan 23 – 28, 2023 | Jan 23 – 28, 2023 | Classical | 4 | 2310 | 11 |
SixDays Budapest Jan GM Budapest HUN· Jan 23 – 28, 2023 | Jan 23 – 28, 2023 | Classical | 10 | 2467 | 43 |
SixDays Budapest Jan IMA Budapest HUN· Jan 23 – 28, 2023 | Jan 23 – 28, 2023 | Classical | 10 | 2216 | 45 |
BUL Ch 2023 Sofia BUL· Jan 21 – 28, 2023 | Jan 21 – 28, 2023 | Classical | 24 | 2190 | 72 |
Oceania Zonal 2023 Melbourne AUS· Jan 23 – 28, 2023 | Jan 23 – 28, 2023 | Classical | 79 | 1989 | 113 |
ch-GEO Rapid 2023 Tbilisi GEO· Jan 26 – 28, 2023 | Jan 26 – 28, 2023 | Rapid | 17 | 2354 | 31 |
ch-GEO Rapid Women 2023 Tbilisi GEO· Jan 26 – 28, 2023 | Jan 26 – 28, 2023 | Rapid | 16 | 2145 | 34 |
SixDays Budapest Jan IMB Budapest HUN· Jan 23 – 28, 2023 | Jan 23 – 28, 2023 | Classical | 10 | 2239 | 42 |
Crocus City Stars Rapid Krasnogorsk RUS· Jan 24 – 26, 2023 | Jan 24 – 26, 2023 | Rapid | 10 | 2657 | 44 |
21. Orsha Open A 2023 Orsha BLR· Jan 19 – 25, 2023 | Jan 19 – 25, 2023 | Classical | 57 | 1912 | 82 |
Central Asian Chess Cup Tashkent UZB· Jan 18 – 24, 2023 | Jan 18 – 24, 2023 | Classical | 26 | 2318 | 44 |
Paracin Prestige Open Paracin SRB· Jan 17 – 23, 2023 | Jan 17 – 23, 2023 | Classical | 40 | 2160 | 89 |
Robert Byrne Mem GM 2023 Naperville, IL USA· Jan 18 – 22, 2023 | Jan 18 – 22, 2023 | Classical | 10 | 2401 | 43 |
Robert Byrne Mem IM 2023 Naperville, IL USA· Jan 18 – 22, 2023 | Jan 18 – 22, 2023 | Classical | 10 | 2236 | 41 |
SJCC 1000GM Winter 2023 Milpitas USA· Jan 21 – 22, 2023 | Jan 21 – 22, 2023 | Classical | 12 | 1756 | 13 |
| NM Youth Teams U17 2023Fredericia· Jan 20 – 22, 2023 | Jan 20 – 22, 2023 | Classical | 26 | 1630 | 46 |
29. 4NCL Congress 2023 Harrogate ENG· Jan 20 – 22, 2023 | Jan 20 – 22, 2023 | Classical | 52 | 1947 | 85 |
| NM Youth Teams U13 2023Fredericia· Jan 20 – 22, 2023 | Jan 20 – 22, 2023 | Classical | 30 | 1377 | 39 |
RA Winter Open Ottawa CAN· Jan 20 – 22, 2023 | Jan 20 – 22, 2023 | Classical | 26 | 1981 | 37 |
77. ch-AZE Prelim 2023 Baku AZE· Jan 13 – 22, 2023 | Jan 13 – 22, 2023 | Classical | 20 | 2351 | 85 |
| FICGS__CHESS__CLASS_M__000116FICGS· Jan 22, 2023 | Jan 22, 2023 | Classical | 7 | 2078 | 21 |
| 29. 4NCL CongressHarrogate· Jan 20 – 22, 2023 | Jan 20 – 22, 2023 | Classical | 115 | 1814 | 178 |
29. 4NCL Congress Harrogate ENG· Jan 20 – 22, 2023 | Jan 20 – 22, 2023 | Classical | 53 | 1949 | 64 |
21. Marienbad A2 GM 2023 Marianske Lazne CZE· Jan 14 – 21, 2023 | Jan 14 – 21, 2023 | Classical | 11 | 2324 | 50 |
21. Marienbad A1 GM 2023 Marianske Lazne CZE· Jan 14 – 21, 2023 | Jan 14 – 21, 2023 | Classical | 10 | 2296 | 42 |
21. Marienbad B2 IM 2023 Marianske Lazne CZE· Jan 14 – 21, 2023 | Jan 14 – 21, 2023 | Classical | 10 | 2243 | 44 |
83. ch-ARM HL 2023 Erevan ARM· Jan 13 – 21, 2023 | Jan 13 – 21, 2023 | Classical | 10 | 2343 | 44 |
48. Seville Open 2023 Seville ESP· Jan 13 – 21, 2023 | Jan 13 – 21, 2023 | Classical | 48 | 2211 | 72 |
21. Marienbad B1 IM 2023 Marianske Lazne CZE· Jan 14 – 21, 2023 | Jan 14 – 21, 2023 | Classical | 10 | 2241 | 40 |
78. ch-ARM w 2023 Erevan ARM· Jan 13 – 21, 2023 | Jan 13 – 21, 2023 | Classical | 11 | 1999 | 50 |
Bob Wade Masters 2023 Auckland NZL· Jan 14 – 20, 2023 | Jan 14 – 20, 2023 | Classical | 10 | 2245 | 41 |
Dana Republike Srpske GM Bijeljina BIH· Jan 14 – 20, 2023 | Jan 14 – 20, 2023 | Classical | 10 | 2352 | 44 |
| FICGS__CHESS__THEMATIC_TOURNAMENT__000254FICGS· Jan 19, 2023 | Jan 19, 2023 | Classical | 9 | 1711 | 26 |
Las Vegas Jan Norm RR Las Vegas, NV USA· Jan 12 – 17, 2023 | Jan 12 – 17, 2023 | Classical | 6 | 2360 | 29 |
| FICGS__CHESS__RAPID_M__000141FICGS· Jan 17, 2023 | Jan 17, 2023 | Classical | 7 | 2114 | 20 |
89. ch-BLR 2023 Minsk BLR· Jan 9 – 17, 2023 | Jan 9 – 17, 2023 | Classical | 11 | 2353 | 51 |
79. ch-BLR w 2023 Minsk BLR· Jan 9 – 17, 2023 | Jan 9 – 17, 2023 | Classical | 10 | 1815 | 35 |
New York Winter IMC 2023 New York, NY USA· Jan 12 – 16, 2023 | Jan 12 – 16, 2023 | Classical | 11 | 2259 | 52 |
New York Winter GMA 2023 New York, NY USA· Jan 12 – 16, 2023 | Jan 12 – 16, 2023 | Classical | 10 | 2315 | 39 |
New York Winter IMD 2023 New York, NY USA· Jan 12 – 16, 2023 | Jan 12 – 16, 2023 | Classical | 10 | 2176 | 45 |
New York Winter GMB 2023 New York, NY USA· Jan 12 – 16, 2023 | Jan 12 – 16, 2023 | Classical | 10 | 2387 | 44 |
Charlotte Open 2023 Charlotte USA· Jan 14 – 16, 2023 | Jan 14 – 16, 2023 | Classical | 59 | 2155 | 100 |
Victoria Ch Sidney CAN· Jan 14 – 15, 2023 | Jan 14 – 15, 2023 | Classical | 25 | 1586 | 23 |
Andranik Margaryan Mem IM Erevan ARM· Jan 8 – 15, 2023 | Jan 8 – 15, 2023 | Classical | 10 | 2290 | 39 |
Andranik Margaryan Mem GM Erevan ARM· Jan 8 – 15, 2023 | Jan 8 – 15, 2023 | Classical | 10 | 2464 | 44 |
1. Bishan Singh Ji Memorial Hyderabad IND· Jan 10 – 14, 2023 | Jan 10 – 14, 2023 | Classical | 99 | 1652 | 137 |