| 2026. gada Rigas jauniesu atklatas meistarsacikstes saha | 2026-10-17
2026-10-21 | Riga · LAT | Classical | 71 |
| 4e Festival International d'Annemasse - Tournoi Amateur | 2026-10-17
2026-10-23 | ANNEMASSE · FRA | Classical | 38 |
| 4e Festival International d'Annemasse - Tournoi Accession | 2026-10-17
2026-10-23 | ANNEMASSE · FRA | Classical | 76 |
| 4e Festival International d'Annemasse - Tournoi Maitre | 2026-10-17
2026-10-23 | ANNEMASSE · FRA | Classical | 93 |
| WE 2 Burbane' Aan Zee - Girone Svizzero | 2026-10-17
2026-10-18 | Briga Novarese · ITA | Classical | 8 |
| WE 2 Burbane' Aan Zee - Girone 3 | 2026-10-17
2026-10-18 | Briga Novarese · ITA | Classical | 6 |
| WE 2 Burbane' Aan Zee - Girone 2 | 2026-10-17
2026-10-18 | Briga Novarese · ITA | Classical | 6 |
| WE 2 Burbane' Aan Zee - Girone 1 | 2026-10-17
2026-10-18 | Briga Novarese · ITA | Classical | 6 |
| Open international de Liffre 2026 - B | 2026-10-17
2026-10-23 | LIFFRE · FRA | Classical | 87 |
| Open international de Liffre 2026 - A | 2026-10-17
2026-10-23 | LIFFRE · FRA | Classical | 85 |
| 2eme Open International de Saint-Macaire | 2026-10-17
2026-10-21 | SAINT MACAIRE · FRA | Classical | 60 |
| 4th Derbyshire Congress 2026 - Major (U1950) | 2026-10-17
2026-10-18 | Nottingham · ENG | Classical | 45 |
| 4th Derbyshire Congress 2026 - Open (U2400) | 2026-10-17
2026-10-18 | Nottingham · ENG | Classical | 30 |
| Southall FIDE Congress - 17, 18 October 2026 - U1600 | 2026-10-17
2026-10-18 | Southall · ENG | Classical | 10 |
| Southall FIDE Congress - 17, 18 October 2026 - U2400 | 2026-10-17
2026-10-18 | Southall · ENG | Classical | 35 |
| GM MIX SWISS 16-21 October BIH Chess Legend Zlatko Basagic | 2026-10-16
2026-10-21 | Sarajevo · BIH | Classical | 64 |
| 2026 Renert Fridays October Div 3-4 | 2026-10-16
2026-10-23 | Calgary, AB · CAN | Rapid | 6 |
| 2026 Renert Fridays October Div 2 | 2026-10-16
2026-10-23 | Calgary, AB · CAN | Rapid | 6 |
| Grand Prix Tiraspol Rapid - 2026 | 2026-10-16
2026-10-17 | Tiraspol · MDA | Rapid | 57 |
| National Amateur Chess Championship 2026 - Below 2000 Women | 2026-10-16
2026-10-18 | Colombo · SRI | Classical | 15 |
| National Amateur Chess Championship 2026 - Below 2000 | 2026-10-16
2026-10-18 | Colombo · SRI | Classical | 56 |
| National Amateur Chess Championship 2026 - Below 2300 | 2026-10-16
2026-10-18 | Colombo · SRI | Classical | 17 |
| The Milestone Invitational Chess Tournament 2026 | 2026-10-16
2026-10-16 | Lahore · PAK | Rapid | 39 |
| Torneo de Ajedrez Rapid "Hernan Lum In Memoriam" 2026 | 2026-10-16
2026-10-17 | Panama · PAN | Rapid | 40 |
| Blitz turnir SK Spansko 10-2026 | 2026-10-16
2026-10-16 | Zagreb · CRO | Blitz | 17 |
| IV Efectivo Blitz en el Mijail Tal | 2026-10-16
2026-10-16 | Montevideo · URU | Blitz | 17 |
| BLITZ - turniej towarzyszacy przy Eliminacjach strefowych do Mistrzostw Polski Juniorow i Mlodzikow OP-SL | 2026-10-16
2026-10-16 | Wegierska Gorka · POL | Blitz | 42 |
| Miedzywojewodzkie Mistrzostwa Mlodzikow 2026 (LD-SK) - Chlopcy | 2026-10-16
2026-10-18 | Spala · POL | Classical | 34 |
| Torneo Promocion Elo Octubre Club Ajedrez Fundacion La Caja 2026 Grupo A | 2026-10-16
2026-10-24 | Las Palmas de Gran Canaria · ESP | Classical | 6 |
| Torneo Promocion Elo Octubre Club Ajedrez Fundacion La Caja 2026 Grupo B | 2026-10-16
2026-10-24 | Las Palmas de Gran Canaria · ESP | Classical | 6 |
| Torneo Promocion Elo Octubre Club Ajedrez Fundacion La Caja 2026 Grupo C | 2026-10-16
2026-10-24 | Las Palmas de Gran Canaria · ESP | Classical | 6 |
| Torneo Promocion Elo Octubre Club Ajedrez Fundacion La Caja 2026.Grupo D | 2026-10-16
2026-10-24 | Las Palmas de Gran Canaria · ESP | Classical | 6 |
| Torneo Promocion Elo Octubre Club Ajedrez Fundacion La Caja 2026 Grupo E | 2026-10-16
2026-10-24 | Las Palmas de Gran Canaria · ESP | Classical | 6 |
| Ilam-darreshar Rapid Madakto Cup 1405 | 2026-10-16
2026-10-16 | Darreshar · IRI | Rapid | 92 |
| Kerman Province Rapid Chess Tournament Mehr 1405 | 2026-10-16
2026-10-16 | Kerman · IRI | Rapid | 112 |
| Fouman Amirali Amer Memorial Blitz Chess Tournament 24 Mehr 1405 | 2026-10-16
2026-10-16 | Fouman · IRI | Blitz | 77 |
| 2026 Texas Fall FIDE - Reserve | 2026-10-16
2026-10-18 | Houston, TX · USA | Classical | 24 |
| 2026 Texas Fall FIDE - Premier | 2026-10-16
2026-10-18 | Houston, TX · USA | Classical | 15 |
| 2do Aniversario Club Social Ajedrez Capra | 2026-10-16
2026-10-18 | Montevideo · URU | Classical | 28 |
| XXV Juegos Universitarios Costarricenses Individual Femenino Blitz 2026 | 2026-10-16
2026-10-16 | UCR, San Pedro, Montes de Oca · CRC | Blitz | 21 |
| XXV Juegos Universitarios Costarricenses Individual Masculino Blitz 2026 | 2026-10-16
2026-10-16 | UCR, San Pedro, Montes de Oca · CRC | Blitz | 33 |
| IRCF Team Rapid Cup 24 Mehr 1405 | 2026-10-16
2026-10-16 | Tehran · IRI | Rapid | 154 |
| Alborz Rapid cup 24 Mehr 1405 | 2026-10-16
2026-10-16 | Karaj · IRI | Rapid | 35 |
| Gilan Rapid Cup 24 Mehr 1405 | 2026-10-16
2026-10-16 | Rasht · IRI | Rapid | 124 |
| All-Russian chess tournament - Stanislav Sergeevich Govorukhin Memorial | 2026-10-16
2026-10-19 | Novomikhaylovskiy · RUS | Rapid | 34 |
| Prvenstvo Novog Sada u ubrzanom sahu - oktobar 2026 | 2026-10-16
2026-10-16 | Novi Sad · SRB | Rapid | 22 |
| Grand Prix SK Vracar 9 | 2026-10-16
2026-10-16 | Beograd · SRB | Blitz | 31 |
| Golestan Nurses' Day Cup Rapid Chess Tournament 1405 | 2026-10-16
2026-10-16 | Golestan · IRI | Rapid | 54 |
| IV Torneio Atmosfera M | 2026-10-16
2026-10-16 | Lisboa · POR | Blitz | 12 |
| Ganja Open -2026, Blitz | 2026-10-16
2026-10-16 | Ganja · AZE | Blitz | 53 |