| Open Kampioenschap van Utrecht | Groep B· May 30 – 31, 2025 | May 30 – 31, 2025 | Classical | 37 | 1870 | 26 |
| Individuels FEFB 2025: Elite· May 28 – 31, 2025 | May 28 – 31, 2025 | Blitz | 10 | 2196 | 10 |
| 2ème festival international de Ceyreste· May 29 – 31, 2025 | May 29 – 31, 2025 | Blitz | 26 | 2150 | 19 |
| Kazakhstan Championship 2025 | MEN· May 21 – 31, 2025 | May 21 – 31, 2025 | Blitz | 13 | 2401 | 19 |
| Kazakhstan Championship 2025 | WOMEN· May 21 – 31, 2025 | May 21 – 31, 2025 | Blitz | 14 | 2181 | 41 |
Kronborg Chess GM 1 2025 Helsingor DEN· May 28 – 31, 2025 | May 28 – 31, 2025 | Classical | 10 | 2429 | 45 |
| Kazakhstan Cadet and Junior Chess Championship 2025 | Blitz U14· Jan 24 – May 31, 2025 | Jan 24 – May 31, 2025 | Blitz | 42 | 1813 | 44 |
| 4. U20 Open Tournament Vigevano· May 31, 2025 | May 31, 2025 | Blitz | 14 | 1866 | 8 |
| Colombia Campeonato Nacional Sub-20 2025 | Absoluto· Jan 28 – May 31, 2025 | Jan 28 – May 31, 2025 | Blitz | 98 | 1808 | 182 |
| Namangan Open | Group A· May 29 – 31, 2025 | May 29 – 31, 2025 | Blitz | 34 | 2127 | 40 |
Kronborg Chess Master 1 Helsingor DEN· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 8 | 2296 | 28 |
BSB IM B Norm 2025 Rosenheim GER· May 25 – 31, 2025 | May 25 – 31, 2025 | Classical | 10 | 2334 | 36 |
| Rudolf Teschner Memorial 2025· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 26 | 2192 | 21 |
| Open Kampioenschap van Utrecht | Groep C· May 30 – 31, 2025 | May 30 – 31, 2025 | Classical | 22 | 1652 | 13 |
BSB IM A Norm 2025 Rosenheim GER· May 25 – 31, 2025 | May 25 – 31, 2025 | Classical | 10 | 2270 | 43 |
| Canary Islands Championship 2025· May 29 – 31, 2025 | May 29 – 31, 2025 | Blitz | 29 | 1950 | 25 |
ch-KAZ 2025 Astana KAZ· May 21 – 31, 2025 | May 21 – 31, 2025 | Classical | 16 | 2428 | 83 |
| Campeonato Nacional Cartagena 2025 | SUB 14 Abs· May 29 – 31, 2025 | May 29 – 31, 2025 | Blitz | 18 | 1779 | 16 |
| French Top 16 Club Championship 2025 | Higher Pool· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 58 | 2471 | 40 |
Rudolf Teschner Mem 2025 Berlin GER· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 34 | 2148 | 41 |
| Itzehoe Open 2025· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 115 | 1787 | 215 |
Kronborg Chess Master 2 Helsingor DEN· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 8 | 2187 | 21 |
| Al-Beruniy 2. International Chess Tournament | Futures· Jan 25 – May 31, 2025 | Jan 25 – May 31, 2025 | Blitz | 12 | 2423 | 19 |
TCh-FRA Top 16 Haute 2025 Belfort FRA· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 84 | 2423 | 125 |
TCh-FRA Top 16 Basse 2025 Belfort FRA· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 80 | 2348 | 124 |
| 2025 New York State Scholastic Chess Championships | High School· Mar 15 – May 31, 2025 | Mar 15 – May 31, 2025 | Classical | 38 | 2063 | 31 |
3rd Cambridge Int Open Cambridge ENG· May 26 – 31, 2025 | May 26 – 31, 2025 | Classical | 43 | 2036 | 38 |
| Norway Chess Open 2025 | Elo - Open· May 26 – 31, 2025 | May 26 – 31, 2025 | Blitz | 62 | 1722 | 84 |
| Norway Chess Open 2025 | GM· May 26 – 31, 2025 | May 26 – 31, 2025 | Blitz | 89 | 2201 | 154 |
Coop Saaremaa Rapid 2025 Kuressaare EST· May 31, 2025 | May 31, 2025 | Rapid | 42 | 2286 | 91 |
Groninger Combinatie Open Groningen NED· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 48 | 1963 | 84 |
2nd Ceyreste Cassis Open Ceyreste FRA· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 39 | 2103 | 55 |
TCh-NOR Club 2025 Drammen NOR· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 97 | 1951 | 92 |
Cambridge International Open 3rd Cambridge ENG· May 26 – 31, 2025 | May 26 – 31, 2025 | Classical | 84 | 2091 | 61 |
Bodensee Open 2025 Bregenz AUT· May 24 – 31, 2025 | May 24 – 31, 2025 | Classical | 90 | 1979 | 219 |
TCh-ISR Women's Elite Netanya ISR· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 71 | 1952 | 147 |
ch-KAZ Women 2025 Astana KAZ· May 21 – 31, 2025 | May 21 – 31, 2025 | Classical | 14 | 2196 | 88 |
TCh-AUT Blitz 2025 Pasching AUT· May 31, 2025 | May 31, 2025 | Blitz | 118 | 2360 | 276 |
| XII KATOWICKI FESTIWAL SZACHOWY – OPEN | Boards 101+· Feb 19 – May 31, 2025 | Feb 19 – May 31, 2025 | Blitz | 185 | 1724 | 263 |
| 2do IRT Centro Comercial AV. Chile Torneo de Clubes· Mar 30 – May 31, 2025 | Mar 30 – May 31, 2025 | Blitz | 117 | 1780 | 205 |
Tatrafest Tatry Open 2025 Tatranske Matliare SVK· May 24 – 31, 2025 | May 24 – 31, 2025 | Classical | 23 | 1983 | 46 |
50th OKU 2025 Utrecht NED· May 30 – 31, 2025 | May 30 – 31, 2025 | Classical | 60 | 2135 | 71 |
Norway Chess Open GM 2025 Stavanger NOR· May 26 – 31, 2025 | May 26 – 31, 2025 | Classical | 92 | 2202 | 351 |
Halmstad Open 2025 Halmstad SWE· May 29 – 31, 2025 | May 29 – 31, 2025 | Classical | 59 | 2069 | 80 |
| Thessaloniki-Chalkidiki School Championship 2025 | Day 2· Mar 23 – May 31, 2025 | Mar 23 – May 31, 2025 | Blitz | 42 | 1820 | 32 |
| 44. Zalakaros Chess Festival· May 24 – 31, 2025 | May 24 – 31, 2025 | Classical | 30 | 2206 | 36 |
Norwegian Team League 24-25 Oslo NOR· Feb 8 – May 31, 2025 | Feb 8 – May 31, 2025 | Classical | 83 | 2305 | 80 |
18. American Continental Foz do Iguacu BRA· May 23 – 31, 2025 | May 23 – 31, 2025 | Classical | 221 | 2085 | 666 |
44th Zalakaros Open 2025 Zalakaros HUN· May 24 – 31, 2025 | May 24 – 31, 2025 | Classical | 43 | 2137 | 85 |
Fredericia IM 2025 Fredericia DEN· May 28 – 31, 2025 | May 28 – 31, 2025 | Classical | 10 | 2315 | 45 |