4-round Swiss Rapid tournament in St. Louis
Start date: 28 September 2023
End date: 28 September 2023
Format: Open / Over the board
Time Control: 10' + 2"
Country: United States 
Prize Fund: 1,864 EUR
First Prize: 466 EUR
7-round Swiss open tournament
Start date: 29 September 2023
End date: 5 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Portugal 
Prize Fund: -
First Prize: 450 EUR
5-round Swiss open tournament in Forli
Start date: 29 September 2023
End date: 1 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Italy 
Prize Fund: 2,500 EUR
First Prize: 400 EUR
5-round Swiss open tournament in Tivoli
Start date: 29 September 2023
End date: 1 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Italy
Prize Fund: 1,505 EUR
First Prize: 400 EUR
7-round Swiss European Club Cup for Men and Women
Start date: 30 September 2023
End date: 8 October 2023
Format: Open / Over the board
Time Control: 90'/40 moves +30' + 30" increment
Country: Albania 
Prize Fund: 45,000 EUR
First Prize: 10,000 EUR
5-round Swiss open tournament
Start date: 30 September 2023
End date: 1 October 2023
Format: Open / Over the board
Time Control: 60' + 30"
Country: France 
Prize Fund: 400 EUR
First Prize: 150 EUR
7-round Swiss open tournament in Podbanské
Start date: 30 September 2023
End date: 6 October 2023
Format: Open / Over the board
Time Control: 90'/40 moves +30' + 30" increment
Country: Slovakia 
Prize Fund: 2,450 EUR
First Prize: 500 EUR
7-round Swiss open tournament
Start date: 30 September 2023
End date: 3 October 2023
Format: Open / Over the board
Time Control: 90'/40 moves +30' + 30" increment
Country: Germany 
Prize Fund: 2,750 EUR
First Prize: 1,000 EUR
9-round Swiss open tournament in Münster
Start date: 30 September 2023
End date: 7 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Germany
Prize Fund: -
First Prize: 1,500 EUR
7-round Swiss open tournament in Gera
Start date: 30 September 2023
End date: 3 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Germany
Prize Fund: -
First Prize: 500 EUR
5-round Swiss open tournament in Terni
Start date: 30 September 2023
End date: 1 October 2023
Format: Open / Over the board
Time Control: 60' + 30"
Country: Italy
Prize Fund: -
First Prize: 150 EUR
7-round Swiss Rapid tournament
Start date: 1 October 2023
End date: 1 October 2023
Format: Open / Over the board
Time Control: 15' + 5"
Country: France
Prize Fund: -
First Prize: 150 EUR
9-round open tournament according to the Baku Acceleration Method
Start date: 3 October 2023
End date: 28 November 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Australia 
Prize Fund: 945 EUR
First Prize: 296 EUR
5-round Swiss open tournament in Lenzerheide for players below 2300
Start date: 6 October 2023
End date: 8 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Switzerland 
Prize Fund: 2,809 EUR
First Prize: 511 EUR
5-round Swiss open tournament in Windsor Locks, Connecticut
Start date: 6 October 2023
End date: 8 October 2023
Format: Open / Over the board
Time Control: 40/80, SD/30, d30
Country: United States
Prize Fund: 8,892 EUR
First Prize: 1,067 EUR
5-round Swiss open tournament in Senago
Start date: 6 October 2023
End date: 8 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Italy
Prize Fund: -
First Prize: 150 EUR
5-round Swiss open tournament
Start date: 6 October 2023
End date: 8 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Italy
Prize Fund: -
First Prize: 300 EUR
6-round Swiss open tournament in Summerside
Start date: 7 October 2023
End date: 9 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Canada 
Prize Fund: 876 EUR
First Prize: 270 EUR
9-round Swiss Rapid tournament
Start date: 7 October 2023
End date: 7 October 2023
Format: Open / Over the board
Time Control: 12' + 3"
Country: France
Prize Fund: 3,150 EUR
First Prize: 500 EUR
8-round Swiss Rapid tournament in Pozega
Start date: 7 October 2023
End date: 7 October 2023
Format: Open / Over the board
Time Control: 10' + 5"
Country: Croatia 
Prize Fund: -
First Prize: 800 EUR
5-round Swiss open tournament
Start date: 7 October 2023
End date: 8 October 2023
Format: Open / Over the board
Time Control: 50' + 10"
Country: France
Prize Fund: -
First Prize: 150 EUR
6-round open tournament
Start date: 7 October 2023
End date: 8 October 2023
Format: Open / Over the board
Time Control: 50' + 10"
Country: France
Prize Fund: 1,600 EUR
First Prize: 400 EUR
9-round Swiss open tournament
Start date: 8 October 2023
End date: 15 October 2023
Format: Open / Over the board
Time Control: 100'/40 moves + 40' + 30"
Country: Norway 
Prize Fund: -
First Prize: 2,000 EUR
9-round Swiss Rapid tournament in Nichelino
Start date: 8 October 2023
End date: 8 September 2023
Format: Open / Over the board
Time Control: 12' + 3"
Country: Italy
Prize Fund: -
First Prize: 150 EUR
7-round Swiss Rapid tournament in Sessa Aurunca
Start date: 8 October 2023
End date: 8 October 2023
Format: Open / Over the board
Time Control: 12' + 3"
Country: Italy
Prize Fund: -
First Prize: 200 EUR
9-round Swiss open tournament for players above 2300 ELO
Start date: 10 October 2023
End date: 21 October 2023
Format: Open / Over the board
Time Control: 90'/40 moves +30' + 30" increment
Country: Qatar 
Prize Fund: 100,374 EUR
First Prize: 23,181 EUR
12-team round-robin tournament in Senta
Start date: 10 October 2023
End date: 23 October 2023
Format: Open / Over the board
Time Control: 90'/40 moves +30' + 30" increment
Country: Serbia 
Prize Fund: -
First Prize: -
5-round Swiss open
Start date: 13 October 2023
End date: 15 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Switzerland
Prize Fund: 1,000 EUR
First Prize: 200 EUR
6-round Swiss open tournament in Sant Antony de Portmany
Start date: 13 October 2023
End date: 15 October 2023
Format: Open / Over the board
Time Control: 60' + 30"
Country: Spain 
Prize Fund: -
First Prize: -
5-round Swiss Rapid tournament in Bagni di Lucca
Start date: 13 October 2023
End date: 15 October 2023
Format: Open / Over the board
Time Control: 90' + 30"
Country: Italy
Prize Fund: 2,500 EUR
First Prize: 350 EUR