How Does a Football Match Work

A football match is a contest between two teams of eleven players, lasting two halves of 45 minutes with added time, decided by goals scored within the Laws of the Game. The referee enforces the 17 laws maintained by the International Football Association Board (IFAB), not broadcast convention or fan assumption. The single biggest gap between what happens on the pitch and what most newcomers perceive is that the game is a system of precise restarts, timed segments, and limited official interventions, not a continuous flow narrative.

A standard senior football match consists of two equal halves of 45 minutes, separated by a half-time interval not exceeding 15 minutes. Law 7 of the IFAB Laws of the Game states this explicitly. What broadcasters call "45 minutes each way" is correct only as a starting point. The referee, as the sole timekeeper, adds an allowance at the end of each half for time lost through substitutions, injuries, disciplinary actions, VAR reviews, and any other cause that consumed playing time. This allowance is called added time, and it is an estimate made by the referee, not a running clock displayed on screen.

The match clock runs continuously from kickoff. The fourth official displays a minimum number of added minutes, but the referee may extend play beyond that figure if further delays occur during the added period itself. At the end of each half, the referee signals the conclusion of play with a whistle. A shot taken after the whistle is void, regardless of its outcome. Half-time is the interval between the halves. Full-time is the end of the match after the second half and any added time have been completed.

Competition regulations can override the standard 45-minute halves for specific age groups or formats. For senior professional football, the 90-minute plus added time structure is universal. Extra time, consisting of two further periods of 15 minutes, applies only when a match must produce a winner and the specific competition rules mandate it. This is not part of the standard match structure and is governed by the competition, not by Law 7 directly.

What The Referee Controls

A single official holds the authority to enforce the Laws of the Game on the field of play. Law 5 grants this person the power to stop, suspend, or abandon the match for any infringement or outside interference. The official makes decisions on facts connected with play, and those decisions are final in law. Two assistant officials patrol the touchlines, one on each half, and signal when the ball has left the field of play, which side is entitled to a restart, and when a player in an offside position becomes involved in active play. Their signals are advisory: the referee may overrule them.

The fourth official, positioned between the technical areas, manages substitutions, checks equipment, and displays the minimum added time. This person also replaces the referee or an assistant if one becomes incapacitated.

Video Review And Goal Line Technology

In competitions that use video match officials, additional assistant officials or a VAR team operate from a remote room with access to multiple camera angles. The VAR protocol, approved by IFAB, restricts reviewable incidents to four categories: goals, penalty decisions, direct red card offences, and mistaken identity in awarding a card. The broadcast replay the viewer sees is not the same feed the VAR team reviews. The referee may delay a restart while a check is completed. Once play restarts, a review cannot be applied retrospectively except in cases of serious missed violent conduct.

Goal line technology, now integrated into Law 1 as a permitted technology, uses a system of cameras or magnetic fields to determine whether the whole of the ball has crossed the goal line. The match official receives an immediate signal via a watch. This is a binary decision with no interpretation required. It replaced the pre-2014 system where the assistant had to make a split-second call on a ball crossing the line at speed.

A goal is scored when the whole of the ball crosses the goal line between the goalposts and under the crossbar, provided that no offence has been committed by the attacking team in the immediate buildup. Law 10 defines a goal simply. The complexity lies in the conditions that may disallow it. An attacking player in an offside position who interferes with an opponent or gains an advantage from that position will see the goal disallowed on review. A handball by the scorer immediately before the goal, even if accidental, results in a disallowed goal under the current IFAB interpretation. A foul in the build-up phase, such as a push or a trip, is a judgment call and is reviewed by the VAR if available.

The match score is determined by the number of goals each team has scored at full-time. Match scoring is not a running tally of attempts but a binary record of each ball crossing the line legally. A team can dominate possession, register more shots, and have a higher expected goals figure and still lose the match. Law 10 does not weight performance quality. One goal is worth one goal. If no goals are scored, or the teams score an equal number, the match is a draw. Competition regulations then determine the outcome: a league awards one point to each team; a knockout tournament may require extra time or kicks from the penalty mark, which are governed by Law 10 and the competition-specific procedures.

Every time the ball leaves the field of play or the referee stops play for an offence, a restart procedure must be followed. Law 8 defines the kickoff, which starts both halves of the match, restarts after a goal, and begins extra time periods. The kickoff is a direct free kick from the centre mark, and the ball must clearly move in any direction. The old requirement that the ball must go forward was removed in the 2016 law revision. A goal may be scored directly from the kickoff against the opposing team, though this is rare.

Throw-Ins, Goal Kicks And Corners

When the whole of the ball crosses the touchline on the ground or in the air, a throw-in is awarded to the opponents of the player who last touched it. Law 15 specifies the mechanics: the thrower must face the field, deliver the ball from behind and over the head with both hands, and have part of each foot on or behind the touchline. A goal cannot be scored directly from a throw-in; if the ball enters the opponent's goal, a goal kick is awarded instead. A foul throw, where the procedure is incorrect, results in a throw-in for the opposing team.

A goal kick is awarded when the whole of the ball crosses the goal line last touched by an attacker, without a goal being scored. Law 16 states the ball is placed anywhere within the goal area and is in play once it is kicked and clearly moves. Opponents must remain outside the penalty area until the ball is in play. A corner kick is awarded when the whole of the ball crosses the goal line last touched by a defender, without a goal being scored. Law 17 places the ball inside the corner arc nearest to where the ball went out. The ball is in play when it is kicked and clearly moves; a goal may be scored directly from a corner kick.

Free Kicks And Penalties

Direct and indirect free kicks and penalty kicks restart play after fouls and misconduct. A direct free kick can be scored directly against the opposing team; an indirect free kick must touch another player before a goal can be scored, and the referee signals it by raising an arm above the head. A penalty kick is a direct free kick taken from the penalty mark, with only the goalkeeper on the line, and is awarded for a direct free kick offence committed inside the penalty area. The distinction between direct and indirect is procedural, not a matter of foul severity.

Restart	Law	Trigger	Ball In Play When
Kickoff	Law 8	Start of half, after goal	Kicked and clearly moves
Throw-in	Law 15	Ball crosses touchline	Enters field from correct throw
Goal kick	Law 16	Attacker last touched; crosses goal line	Kicked and clearly moves; leaves penalty area
Corner kick	Law 17	Defender last touched; crosses goal line	Kicked and clearly moves
Direct free kick	Law 13	Foul contact or handball	Kicked and clearly moves
Indirect free kick	Law 13	Technical offence (e.g., offside)	Kicked and clearly moves; second touch needed for goal
Penalty kick	Law 14	Direct free kick offence in penalty area	Kicked and clearly moves forward

The referee calculates added time at the end of each half. There is no automatic formula. The law grants discretion to allow for time lost through substitutions, assessment of injured players, removal of injured players from the field, time-wasting, disciplinary sanctions, medical stoppages, and VAR checks and reviews. The fourth official displays the minimum added time via an electronic board. This is a floor, not a ceiling. The referee may add more time if further delays occur during the announced added minutes.

Why The Clock On Screen Misleads

Broadcasters display a running clock that stops at 45:00 or 90:00 and then continues into added time. This is a production decision, not a reflection of the law. The referee's watch is the sole timekeeping device that matters. The announced added time does not match the delays you perceive from the broadcast because the official records time lost from the moment play stops, not from when the broadcast cuts to a replay or when a player eventually gets to their feet. The gap between the written law and broadcast convention is one of the most persistent points of fan confusion in the sport.

Match duration can also be affected by external factors. In tournaments where weather or light conditions are a concern, competition regulations may alter the half-time interval or mandate water breaks. These are competition-specific and not part of the universal Laws of the Game. The 45-minute half is the default that every competition starts from.