{
  "id": "offside",
  "type": "glossary",
  "name": "Offside",
  "summary": "Offside is the Law 11 concept distinguishing an offside position (not an offence) from an offside offence, which requires involvement in active play at the moment a team-mate plays the ball.",
  "locale": "en",
  "tags": [
    "glossary",
    "offside",
    "laws-of-the-game"
  ],
  "relations": [
    {
      "rel": "governed_by",
      "target": "law-11-offside"
    }
  ],
  "questions": [
    "What does offside mean in football?"
  ],
  "claims": [
    {
      "id": "c1",
      "text": "Offside position means any part of a player's head, body or feet is in the opponents' half (excluding the halfway line) and nearer to the opponents' goal line than both the ball and the second-last opponent; hands and arms are excluded from the assessment.",
      "sources": [
        "ifab-law-11-2026-27"
      ],
      "confidence": 0.97
    },
    {
      "id": "c2",
      "text": "An offside position becomes an offside offence only when the player becomes involved in active play: interfering with play, interfering with an opponent, or gaining an advantage from a rebound, deflection or deliberate save.",
      "sources": [
        "ifab-law-11-2026-27"
      ],
      "confidence": 0.96
    }
  ],
  "takeaways": [],
  "faqs": [],
  "evidence_tier": "primary",
  "evidence": {
    "level": "industry_observation",
    "source_types": [
      "industry_observation"
    ]
  },
  "moat_flag": false,
  "winning_edge": "A one-look definition that keeps the position/offence distinction most informal explanations lose, bound to the 2026/27 IFAB text of Law 11.",
  "confidence": 0.96,
  "last_verified": "2026-08-08",
  "canonical_url": "https://futbolatlas.app/k/offside",
  "api_url": "https://futbolatlas.app/api/k/offside.json",
  "jsonld": {
    "@context": "https://schema.org",
    "name": "Offside",
    "description": "Offside is the Law 11 concept distinguishing an offside position (not an offence) from an offside offence, which requires involvement in active play at the moment a team-mate plays the ball.",
    "url": "https://futbolatlas.app/k/offside",
    "license": "https://spdx.org/licenses/CC-BY-4.0.html",
    "dateModified": "2026-08-08",
    "citation": [
      {
        "@type": "CreativeWork",
        "name": "Law 11 — Offside (Laws of the Game 2026/27)",
        "url": "https://www.theifab.com/laws/latest/offside/"
      }
    ],
    "@type": "DefinedTerm"
  }
}