| Torneo Blitz 3 Santiago de Cuba 2026 | 2026-10-04
2026-10-04 | Santiago de Cuba · CUB | Blitz | 8 |
| Rapid Clubkampioenschap 2026 VPTD Geraardsbergen Ronde 1 | 2026-10-04
2026-10-04 | Geraardsbergen · BEL | Rapid | 9 |
| IRT Femenino 3 clubes | 2026-10-04
2026-10-17 | CABA · ARG | Classical | 11 |
| Campeonato Individual Segunda Zaragoza 2026 Rondas 2-4 | 2026-10-04
2026-10-25 | Zaragoza · ESP | Classical | 119 |
| Campeonato Individual Primera Zaragoza 2026 Rondas 2-3 | 2026-10-04
2026-10-25 | Zaragoza · ESP | Classical | 94 |
| Kramnik Blitz Chess Cup Group B 2026 | 2026-10-04
2026-10-04 | Dederkoi · RUS | Blitz | 66 |
| Kramnik Blitz Chess Cup Group A 2026 | 2026-10-04
2026-10-04 | Dederkoi · RUS | Blitz | 45 |
| Campeonato Individual Primera Zaragoza 2026 Rondas 1 | 2026-10-04
2026-10-04 | Zaragoza · ESP | Classical | 94 |
| Campeonato Individual Preferente Zaragoza 2026 Rondas 1-3 | 2026-10-04
2026-10-25 | Zaragoza · ESP | Classical | 37 |
| Campeonato de Asturias Individual Cuarta 2026 Rondas 1-4 | 2026-10-04
2026-10-25 | Gijon · ESP | Classical | 181 |
| Campeonato de Asturias Individual Tercera 2026 Rondas 1-4 | 2026-10-04
2026-10-25 | Gijon · ESP | Classical | 80 |
| Campeonato de Asturias Individual Segunda 2026 Rondas 1-4 | 2026-10-04
2026-10-25 | Gijon · ESP | Classical | 50 |
| Campeonato de Asturias Individual Primera 2026 Rondas 1-4 | 2026-10-04
2026-10-25 | Gijon · ESP | Classical | 30 |
| 4th stage of the Vladimir Youth Cup_rapid | 2026-10-04
2026-10-04 | Vladimir · RUS | Rapid | 18 |
| I Torneo de Ajedrez Blitz Virgen de Fatima 2026 | 2026-10-04
2026-10-04 | Galdar (Gran Canaria) · ESP | Blitz | 39 |
| XIV Torneo Open de Otono CCC 2026 Rondas 4-7 | 2026-10-04
2026-10-25 | Colmenarejo (Madrid) · ESP | Classical | 30 |
| 1er IRT Rapido 111 Aniversario Ciudad de Anelo | 2026-10-04
2026-10-04 | Anelo - Neuquen · ARG | Rapid | 57 |
| Education Day Braila | 2026-10-04
2026-10-04 | Braila · ROU | Rapid | 52 |
| Master Moves Open Rapid Chess Tournament (FIDE Rated) | 2026-10-04
2026-10-04 | Dubai · UAE | Rapid | 68 |
| Rapide Jeunes de Toulon 04 oct 2026 | 2026-10-04
2026-10-04 | TOULON · FRA | Rapid | 23 |
| Rapid Carnival of Discoveries 2026 October stage - tournament B | 2026-10-04
2026-10-04 | Yekaterinburg · RUS | Rapid | 71 |
| Rapid Carnival of Discoveries 2026 October stage - tournament A | 2026-10-04
2026-10-04 | Yekaterinburg · RUS | Rapid | 99 |
| Cup SHRB (men) - 2026 | 2026-10-04
2026-10-04 | Ufa · RUS | Rapid | 47 |
| 3. liga D2 2026 2027 R1-2 | 2026-10-04
2026-10-11 | Presovsky kraj · SVK | Classical | 231 |
| CIG 2027 - SELVAZZANO DENTRO U8-10-12-14-16 | 2026-10-04
2026-10-04 | SELVAZZANO DENTRO · ITA | Rapid | 30 |
| OP 2 RAPID TENCAROLA | 2026-10-04
2026-10-04 | SELVAZZANO DENTRO · ITA | Rapid | 33 |
| CIG 2027 - CODRONGIANOS U8-10 | 2026-10-04
2026-10-04 | CODRONGIANOS · ITA | Rapid | 11 |
| CIG 2027 - CODRONGIANOS U12 | 2026-10-04
2026-10-04 | CODRONGIANOS · ITA | Rapid | 13 |
| CIG 2027 - CODRONGIANOS U14-16-18 | 2026-10-04
2026-10-04 | CODRONGIANOS · ITA | Rapid | 10 |
| OP 12 RAPID SACCARGIA | 2026-10-04
2026-10-04 | CODRONGIANOS · ITA | Rapid | 56 |
| Team 2027 - Coupe de France 1er Tour | 2026-10-04
2026-10-04 | FRANCE · FRA | Classical | 192 |
| Rapide d'Automne 2026 de Carcassonne | 2026-10-04
2026-10-04 | CARCASSONNE · FRA | Rapid | 34 |
| 2. Memorijalni turnir Stjepan Zaja 2026 | 2026-10-04
2026-10-04 | Arzano · CRO | Rapid | 41 |
| Campionat Absolut Individual de la Territorial de Barcelona 2026 Grup B Barcelones Rondas 1-2 | 2026-10-04
2026-10-25 | Barcelona · ESP | Classical | 45 |
| Campionat Absolut Individual de la Territorial de Barcelona 2026 Grup B Sud Rondas 1-2 | 2026-10-04
2026-10-25 | Vilanova i la Geltru (Barcelona) · ESP | Classical | 46 |
| Campionat Absolut Individual de la Territorial de Barcelona 2026 Grup B Nord Rondas 1-2 | 2026-10-04
2026-10-25 | Premia de Mar (Barcelona) · ESP | Classical | 33 |
| Campionat Absolut Individual de la Territorial de Barcelona 2026 Grup A Rondas 1-2 | 2026-10-04
2026-10-25 | Barcelona · ESP | Classical | 65 |
| Campionat Absolut Individual de la Territorial de Tarragona 2026 Grup B Rondas 1-3 | 2026-10-04
2026-10-25 | Hospitalet de l'Infant (Tarragona) · ESP | Classical | 53 |
| NRW-Liga Gruppe 2 2026-2027 Oktober 2026 | 2026-10-04
2026-10-04 | verschiedene · GER | Classical | 80 |
| NRW-Liga Gruppe 1 2026-2027 Oktober 2026 | 2026-10-04
2026-10-04 | verschiedene · GER | Classical | 80 |
| Campionat Absolut Individual de la Territorial de Tarragona 2026 Grup A Rondas 1-3 | 2026-10-04
2026-10-25 | Hospitalet de l'Infant (Tarragona) · ESP | Classical | 54 |
| Oberliga NRW 2026-2027 Oktober 2026 | 2026-10-04
2026-10-04 | verschiedene · GER | Classical | 96 |
| Campionat Absolut Individual de la Territorial de Lleida 2026 Grup B Rondas 1-3 | 2026-10-04
2026-10-25 | Lleida · ESP | Classical | 60 |
| Campionat Absolut Individual de la Territorial de Lleida 2026 Grup A Rondas 1-3 | 2026-10-04
2026-10-25 | Lleida · ESP | Classical | 33 |
| Campionat Absolut Individual de la Territorial de Girona 2026 Grup A Rondas 2-4 | 2026-10-04
2026-10-25 | Girona · ESP | Classical | 57 |
| Landesliga Berlin 2026-2027 Oktober 2026 | 2026-10-04
2026-10-04 | Berlin · GER | Classical | 80 |
| CIG 2027 - SCUOLA POPOLARE U8-10 | 2026-10-04
2026-10-04 | ROMA · ITA | Rapid | 10 |
| CIG 2027 - SCUOLA POPOLARE U12 | 2026-10-04
2026-10-04 | ROMA · ITA | Rapid | 8 |
| CIG 2027 - SCUOLA POPOLARE U14-16-18 | 2026-10-04
2026-10-04 | ROMA · ITA | Rapid | 11 |
| OP 5 BLITZ STEINITZ 2026 | 2026-10-04
2026-10-04 | ROMA · ITA | Blitz | 22 |