| Rudar XXIV - IM· Apr 18 – 24, 2024 | Apr 18 – 24, 2024 | Classical | 6 | 2211 | 5 |
| Uruguayan Youth Festival 2024 | U14· Apr 20 – 22, 2024 | Apr 20 – 22, 2024 | Classical | 11 | 1575 | 7 |
| FICGS__CHESS__CLASS_M__000137FICGS· Apr 22, 2024 | Apr 22, 2024 | Classical | 8 | 2257 | 27 |
| Israeli Youth Championship 2024 | U16· Apr 16 – 21, 2024 | Apr 16 – 21, 2024 | Blitz | 10 | 1955 | 8 |
| French Youth Championships 2024 | U20 Girls· Apr 14 – 21, 2024 | Apr 14 – 21, 2024 | Classical | 13 | 1852 | 20 |
| French Youth Championships 2024 | U16 Open· Apr 14 – 21, 2024 | Apr 14 – 21, 2024 | Classical | 15 | 2078 | 10 |
| Lithuanian Chess League 2024 | LŠL Open· Mar 23 – Apr 21, 2024 | Mar 23 – Apr 21, 2024 | Classical | 25 | 2184 | 13 |
| Israeli Youth Championship 2024 | U18· Apr 16 – 21, 2024 | Apr 16 – 21, 2024 | Blitz | 7 | 2275 | 7 |
| Chess Eagles Vulcan· Apr 20 – 21, 2024 | Apr 20 – 21, 2024 | Classical | 19 | 1869 | 16 |
| Isle of Wight Chess Congress· Apr 19 – 21, 2024 | Apr 19 – 21, 2024 | Classical | 15 | 1958 | 10 |
| 21. Bangkok Chess Club Open 2024· Apr 13 – 21, 2024 | Apr 13 – 21, 2024 | Classical | 23 | 2332 | 14 |
1000GM April Gp5 San Jose, CA USA· Apr 21, 2024 | Apr 21, 2024 | Classical | 9 | 1917 | 7 |
| Israeli Youth Championship 2024 | U8· Apr 16 – 21, 2024 | Apr 16 – 21, 2024 | Blitz | 12 | 1461 | 10 |
| Nicaraguan Championship 2024 | women· Apr 7 – 21, 2024 | Apr 7 – 21, 2024 | Classical | 25 | 1678 | 28 |
| Uruguayan Youth Festival 2024 | U16· Apr 20 – 21, 2024 | Apr 20 – 21, 2024 | Classical | 10 | 1706 | 6 |
1000GM April Gp4 San Jose, CA USA· Apr 21, 2024 | Apr 21, 2024 | Classical | 9 | 2047 | 5 |
| Charlotte ALTO Spring 2024· Apr 20 – 21, 2024 | Apr 20 – 21, 2024 | Classical | 22 | 1995 | 15 |
1000GM April Gp3 San Jose, CA USA· Apr 21, 2024 | Apr 21, 2024 | Classical | 11 | 2158 | 8 |
| Columbus Energy Polish Amateur Championship | 2100 FIDESianozety· Apr 13 – 21, 2024 | Apr 13 – 21, 2024 | Classical | 11 | 1917 | 19 |
| French Youth Championships 2024 | U12 Open· Apr 14 – 21, 2024 | Apr 14 – 21, 2024 | Classical | 19 | 1878 | 15 |
| FIDE Candidates 2024 | OpenToronto, Canada· Apr 4 – 21, 2024 | Apr 4 – 21, 2024 | Classical | 8 | 2745 | 14 |
| Columbus Energy Polish Amateur Championship | 1580 FIDESianozety· Apr 13 – 21, 2024 | Apr 13 – 21, 2024 | Classical | 40 | 1563 | 46 |
1000GM April Gp2 San Jose, CA USA· Apr 21, 2024 | Apr 21, 2024 | Classical | 10 | 2235 | 8 |
1000GM April Gp4 San Jose CA USA· Apr 21, 2024 | Apr 21, 2024 | Classical | 9 | 2050 | 5 |
| FICGS__CHESS__RAPID_B__000396FICGS· Apr 21, 2024 | Apr 21, 2024 | Classical | 8 | 1858 | 22 |
FIDE Women's Candidates Toronto CAN· Apr 4 – 21, 2024 | Apr 4 – 21, 2024 | Classical | 8 | 2517 | 56 |
| Guatemalan Championship 2024 | women· Apr 8 – 21, 2024 | Apr 8 – 21, 2024 | Classical | 12 | 1666 | 23 |
| Columbus Energy Polish Amateur Championship | 1820 FIDESianozety· Apr 13 – 21, 2024 | Apr 13 – 21, 2024 | Classical | 13 | 1721 | 12 |
| FIDE Women's CandidatesToronto, Canada· Apr 4 – 21, 2024 | Apr 4 – 21, 2024 | Classical | 8 | 2515 | 11 |
| Botswana Metropolitan Championship 2024 Finals | women· Apr 18 – 21, 2024 | Apr 18 – 21, 2024 | Classical | 11 | 1742 | 15 |
| Botswana Metropolitan Championship 2024 Finals | Open· Apr 18 – 21, 2024 | Apr 18 – 21, 2024 | Classical | 12 | 1946 | 16 |
21st BCC Open 2024 Hua Hin THA· Apr 13 – 21, 2024 | Apr 13 – 21, 2024 | Classical | 53 | 2235 | 73 |
| Uruguayan Youth Festival 2024 | U18· Apr 20 – 21, 2024 | Apr 20 – 21, 2024 | Classical | 10 | 1781 | 8 |
| French Youth Championships 2024 | U18 Girls· Apr 14 – 21, 2024 | Apr 14 – 21, 2024 | Classical | 17 | 1789 | 17 |
| French Youth Championships 2024 | U14 Open· Apr 14 – 21, 2024 | Apr 14 – 21, 2024 | Classical | 13 | 1999 | 9 |
| Dominican Republic National Chess Championship 2024 | women· Apr 13 – 21, 2024 | Apr 13 – 21, 2024 | Classical | 10 | 1872 | 18 |
| Guatemalan Championship 2024 | Open· Apr 8 – 21, 2024 | Apr 8 – 21, 2024 | Classical | 12 | 1975 | 37 |
21. BCC Open 2024 Hua Hin THA· Apr 13 – 21, 2024 | Apr 13 – 21, 2024 | Classical | 54 | 2288 | 65 |
FRA Ch Junior 2024 Agen FRA· Apr 14 – 21, 2024 | Apr 14 – 21, 2024 | Classical | 23 | 2113 | 30 |
| 2024 NSWCA City of Sydney Rapid· Apr 21, 2024 | Apr 21, 2024 | Rapid | 13 | 1870 | 11 |
1000GM April Gp1 San Jose, CA USA· Apr 21, 2024 | Apr 21, 2024 | Classical | 9 | 2223 | 6 |
TCh-AUT 2. West 2023-24 Austria AUT· Jan 19 – Apr 21, 2024 | Jan 19 – Apr 21, 2024 | Classical | 108 | 2159 | 209 |
| French Youth Championships 2024 | U14 Girls· Apr 15 – 21, 2024 | Apr 15 – 21, 2024 | Classical | 7 | 1743 | 5 |
FIDE Candidates 2024 Toronto CAN· Apr 4 – 21, 2024 | Apr 4 – 21, 2024 | Classical | 9 | 2743 | 67 |
Isle of Wight Open 2024 Ryde ENG· Apr 19 – 21, 2024 | Apr 19 – 21, 2024 | Classical | 24 | 1951 | 54 |
TCh-AUT 2. Mitte 2023-24 Austria AUT· Mar 15 – Apr 21, 2024 | Mar 15 – Apr 21, 2024 | Classical | 101 | 2229 | 205 |
TCh-LTU 2024 Lithuania LTU· Jan 27 – Apr 21, 2024 | Jan 27 – Apr 21, 2024 | Classical | 91 | 2119 | 114 |
TCh-AUT 2nd West 2023-24 Austria AUT· Jan 19 – Apr 21, 2024 | Jan 19 – Apr 21, 2024 | Classical | 102 | 2157 | 180 |
TCh-AUT 2nd Ost 2023-24 Austria AUT· Jan 27 – Apr 21, 2024 | Jan 27 – Apr 21, 2024 | Classical | 111 | 2183 | 175 |
TCh-AUT 2. Ost 2023-24 Austria AUT· Jan 27 – Apr 21, 2024 | Jan 27 – Apr 21, 2024 | Classical | 113 | 2199 | 204 |