Nomenclature
In English, the round in which only eight competitors remain is generally called the quarter-final round; this is followed by the semi-final round in which only four are left, the two winners of which then meet in the final or championship round. The round before the quarter finals is sometimes called the "Round of Sixteen", "Last Sixteen", or (in South Asia) "pre-quarter finals"; in some other languages "eighth-finals" is used. Earlier Rounds are typically numbered counting forwards from the first round, or by the number of remaining competitors. If some competitors get a bye, the round at which they enter may be named the "first" round, with the earlier matches called a "preliminary" round, or "play-in games".
Examples of the names given to rounds in various generic conventions and specific competitions:
| Competitor count | Fraction of final | Grand Slam tennis singles |
FA Cup | NCAA Men's Basketball Championship |
Coupe de France | NADC playoffs |
|---|---|---|---|---|---|---|
| Round of 2 | Final | Final | FA Cup Final | Championship game | Final | Final |
| Round of 4 | Semi-finals | Semi-finals | Semi-finals | Final Four | Semi-finals | Semi-finals |
| Round of 8 | Quarter-finals | Quarter-finals | 6th Round | Elite Eight (Regional finals) |
Quarter-finals | Quarter-finals |
| Round of 16 | Eighth-finals | Round of 16 (US Open) 4th round (Wimbledon) |
5th round | Sweet Sixteen (Regional Semi-finals) |
8th-finals | Octofinals |
| Round of 32 | 16th-finals | 3rd round | 4th round | 3rd round | 16th-finals | Double-octofinals |
| Round of 64 | 32nd-finals | 2nd round | 3rd round | 2nd round | 32nd-finals | Triple-octofinals |
| Round of 128 | 64th-finals | 1st round | 2nd round | First Four | 8th qualifying round | Quad-octofinals |
Read more about this topic: Single-elimination Tournament