Analysis of information sources in references of the Wikipedia article "Fast chess" in English language version.
{{cite web}}: CS1 maint: numeric names: authors list (link)A.1 A 'Rapid chess' game is one where either all the moves must be completed in a fixed time of more than 10 minutes but less than 60 minutes for each player; or the time allotted plus 60 times any increment is of more than 10 minutes but less than 60 minutes for each player. ... B.1 A 'blitz' game is one where all the moves must be completed in a fixed time of 10 minutes or less for each player; or the allotted time plus 60 times any increment is 10 minutes or less for each player.
For a game to be rated each player must at the start of the tournament have the following minimum periods in which to complete all the moves, assuming the game lasts 60 moves. Where at least one of the players in the game has a rating of 2400 or higher, each player must have a minimum of 120 minutes. Where at least one of the players in the game has a rating 1800 or higher, each player must have a minimum of 90 minutes. Where both of the players in the game are rated below 1800, each player must have a minimum of 60 minutes.
There are three separate rating systems. A player's Blitz rating is calculated if he or she participates in events with total playing times of G/5 – G/10. A player′s – Quick rating is calculated if he or she participates in events with a total playing time greater than 10 minutes and less than 30 minutes. A player's Regular rating is computed if he or she enters a tournament with the total playing time of G/30 or slower. Games with total playing times of G/30 – G/65 are used to calculate both Regular and Quick ratings at the same time.