The match format was best of 12 games. After seven consecutive draws, Karjakin won the eighth game. Carlsen evened the score by winning the tenth game. All other games were drawn, leaving the match at a 6–6 tie, meaning that tie breaks were to decide the match.
Carlsen won the four-game rapid chess tie break 3–1, with wins in the third and fourth games, to win the match and retain the title of World Chess Champion
Time controls for each player in a game of rapid chess are, according to FIDE, more than 10 minutes, but less than 60 minutes. Rapid chess can be played with or without time increments for each move. In a game where time increments are used, a player can automatically gain, for instance, ten more seconds on the clock after each move. In a case where time increments are used, the total time per player for a 60 move game must be more than 10 minutes, but less than 60 minutes.
For the FIDE World Rapid Championship, each player will have 15 minutes, plus 10 seconds additional time per move starting from move 1.
The USCF quick chess rating for players is based on games with time controls per player greater than 10 minutes, up to a maximum of 65 minutes. Games between 30 and 65 minutes per player are dual rated for both quick and regular ratings.
From 1987 to 1989 FIDE referred to rapid chess as active chess.