Understanding Darts: Sets and Legs Simplified
Darts is an extremely complex game in terms, and is confusing for novices particularly when they are watching professional games. The most frequently-asked queries is, What exactly are legs and sets in darts? And what are their functions? This guide will go over these concepts in greater detail and help you to understand how they affect an overall flow in a darts game.
What Is a Leg in Darts?
The term “leg” in darts represents the single game played using the 501 format, which is the most popular scoring system. The aim is to lower scoring from 501 down to zero before ending with the double. If you reach zero, the player first is the winner of the leg. The legs are an individual game and the match winner is determined by the initial player to complete a specified quantity of leg. In the case of a “best of 11 legs” match, the player who wins six legs is triumphant.
What Is a Set in Darts?

Certain tournaments are played using an “set play” format, like tennis. The players compete in a series of legs in order to win sets. The first to reach a particular number of sets is the winner in the match. This form of play is widely employed during the PDC World Darts Championship.
A frequent question in the World Championship is: How many legs constitute an entire set? In this tournament, every set is an “best of five legs,” which means the first player who wins three legs is the winner of the set. The overall winner is the first player to complete the minimum number of sets.
How Many Sets Are Needed to Win a Match?
The number of sets needed to win varies depending on the competition and also the level of the contest. For instance:
World Grand Prix First Round Best of three sets.
World Darts Championship First Round 5 sets of best.
World Darts Championship Final: Best of 13 sets (first to seven sets wins).
The World Darts Championship, the structure is in the following manner:
Second and Third Rounds Five sets best of five.
Third/Fourth Rounds Best of seven sets.
Quarter-Finals: The best of nine sets.
Semi-Finals Finals: The best out of eleven sets.
Final Sets: Best out of the 13 sets.
In the next round onwards when a match is in its final round, the match has to be won by two distinct legs. If the score of a leg is 5-5 and tied and a sudden-death leg is the one that determines the winner.
Leg-Only Format (Matchplay)

Many tournaments don’t follow the set play format. Some events, like such as the UK Open and the Grand Slam of Darts are based in the “legs-only” or “matchplay” style. In these tournaments, participants are looking to win a certain number of legs in order to win victory. For example:
UK Open Final: Best of 21 legs.
Grand Slam of Darts Final Best out of the 31 leg.
The Premier League of Darts also uses a leg-play format. In the regular season, matches are played in the best of 11 legs. In the playoffs, the play-offs go on to the highest of 19 legs during the semifinals as well as the top 21 in the last.
The Ultimate Achievement: The Nine-Dart Finish
In darts, the highest level of performance will be darts “nine-dart leg,” often described as”perfect leg” or “perfect leg.” It happens when a player can complete a 501-game with just nine darts — the smallest number possible. This feat requires extreme precision and skills. The most commonly used sequence is:
First Three Darts 180 (three triple 20s).
The Next Three Darts 180 (three 20s trebles).
Final Three Darts: 141 (treble 20, treble 19, double 12).
The first live nine-dart finish was achieved by John Lowe in 1984. Since then, many players have surpassed this feat and include Luke Littler, who became the youngest player to reach a live nine-darter in the 2024 Bahrain Darts Masters.
Practice Like a Pro
No matter if you’re playing for fun with your pals or are aspiring to be a professional, knowing the rules of darts games is vital. Legs and sets form the foundation of darts competition, from local leagues to international tournaments. If you understand the workings of sets and legs Why not ask your friends to a game? Try different formats to improve your abilities and enjoy the game more.
Final Thoughts
Darts is a game that requires technique, precision and mental concentration. It doesn’t matter if it’s watching World Darts Championship or playing at home, knowing the fundamentals of legs and sets will help you appreciate the game. So, grab your darts and put up your board and begin to practice–you could make that perfect leg in the future!