Tennis scoring works in a hierarchical structure of points, games, sets, and matches:

Points and Games

• A player wins a game by winning at least four points and being at least two points ahead of the opponent.
• Points within a game are counted as: 0 points = "love," 1 point = "15," 2 points = "30," 3 points = "40," and the next point wins the game if the player is ahead by two points.
• If both players reach 40 points (called "deuce"), the game continues until one player gains a two-point advantage, winning the game

Sets

• A set consists of a sequence of games.
• To win a set, a player must win at least six games and lead by at least two games (e.g., 6–4 or 7–5).
• If the set score reaches 6–6, a tiebreaker is usually played, where players compete to reach seven points with at least a two-point margin to win the set.
• In some tournaments, especially in final sets, an "advantage set" format may be used where play continues until a player leads by two games without a tiebreak

Matches

• A match is composed of sets.
• Most matches are best-of-three sets (first to win two sets wins the match).
• Major tournaments like men's Grand Slams often use best-of-five sets (first to three sets wins)

Serving and Other Rules

• The player who serves first is decided by a coin toss.
• Players alternate serving each game.
• In tiebreaks, the serve alternates after the first point and then every two points.
• Players switch sides after every odd-numbered game and after every six points in a tiebreak to ensure fairness regarding court conditions

In summary, tennis scoring progresses from points to games, games to sets, and sets to matches, with specific rules for winning each stage and special conditions like deuce and tiebreaks to handle ties