What is offside in soccer? Your World Cup rules guide
In soccer, the offside rule means a player is offside when—at the moment a teammate plays the ball—they are closer to the opponent's goal line than both the ball and the second-to-last defender, with the goalkeeper usually last. You cannot be offside in your own half, and merely standing offside is not a foul until you become involved in active play. With the 2026 FIFA World Cup drawing new viewers across North America, AP News reports that first-time fans keep asking the same question—and offside rule soccer debates still split living rooms.
Key Takeaways
- Offside is judged at the instant the ball is played, by comparing the attacker to the ball and second-last defender.
- 2026 World Cup hydration breaks and other delays can add at least five minutes of stoppage time per half.
- Fouls inside the penalty area bring a 12-yard penalty kick; fouls outside bring a defended free kick.
- Semi-automated offside technology alerts officials on clear calls but struggles when multiple players bunch together.
What makes a player offside?
Per AP Stylebook guidance cited by AP News, it is "offside," not "offsides." A player is in an offside position when they are nearer to the opponent's goal line than both the ball and the second-to-last opposition player the moment a teammate passes. Former University of Hawaii player Krista Peterson told AOL that to stay onside, you must be level with or behind the defender closest to the goal when the ball is played to you.
FanSided notes the rule only applies in the attacking half and does not apply on corner kicks or goal kicks. Without offside, attackers could cherry-pick near the goal—a problem the sport has tried to prevent since the law was codified 163 years ago.
Why does this World Cup have longer stoppage time?
Unlike American football, basketball, or hockey, the soccer clock never stops. Injuries, goal celebrations, and time-wasting are added at the end of each half as stoppage time, AP News explains.
This tournament adds three-minute hydration breaks midway through each half, introduced for summer heat across the United States, Canada, and Mexico. Those minutes must also be added to stoppage time, meaning there is typically at least five extra minutes of play per half.
How do penalty kicks and free kicks differ?
Both restarts follow fouls, but location matters. AP News states a penalty kick is awarded when the foul happens inside the penalty area—the large rectangle by the goal. The kick is taken from 12 yards (11 meters) out with only the goalkeeper able to stop the shot.
A free kick is awarded for fouls outside that box. The defending team can set a wall, and the kick is taken from where the offense occurred. AOL adds that two yellow cards in one match become a red card, ejecting the player with no substitute allowed on the field.
How is technology changing offside calls?
FanSided reports FIFA will use Video Assistant Referees and semi-automated offside technology at the 2026 World Cup. Advanced SAOT can send an audio alert to assistant referees when a player is clearly offside, reversing recent guidance that urged officials to wait for a natural stoppage.
The goal is faster, sharper calls that reduce injuries from plays that should already be dead. The system still has limits: it cannot reliably judge offside when several players are grouped tightly. For more on how sports tech is reshaping live events, browse our Future Tech & AI Wonders coverage.