# Law 25: Challenge Referee

バレーボール · Law 25: Challenge Referee · Insporta Book (https://book.insporta.app/ja/volleyball/laws/law-25-challenge-referee/)

The Challenge referee at events using the Video Challenge system: where he works, what he supervises, whom he advises, and situations from video reviews.

## 25.251 The Challenge Referee

When he is compulsory, the booth, his uniform, supervising the challenge process and advising the 1st referee.

### テスト 1: The Challenge referee

- If the Video Challenge system is in use at FIVB, World and Official Competitions, a Challenge referee is compulsory. (出典: FIVB OVR 2025-2028, Rule 25)
- He works in the challenge booth, in a separate position. (出典: FIVB OVR 2025-2028, Rule 25.1)
- The booth's position is determined by the FIVB Technical Delegate. (出典: FIVB OVR 2025-2028, Rule 25.1)
- He supervises the challenge process and makes sure it follows the regulation in force. (出典: FIVB OVR 2025-2028, Rule 25.2.1)
- Like the other referees, he wears the official referee uniform. (出典: FIVB OVR 2025-2028, Rule 25.2.2)
- At the end of the match he signs the score sheet. (出典: FIVB OVR 2025-2028, Rule 25.2.4)
- Rule 22 lists the Challenge referee among the officials who make up the refereeing team. (出典: FIVB OVR 2025-2028, Rule 22.1, 25)
- After the challenge process he advises the 1st referee of the nature of the fault; the 1st referee decides. (出典: FIVB OVR 2025-2028, Rule 25.2.3)
- The review happens in the booth, and the result goes to the 1st referee, who keeps the final say. (出典: FIVB OVR 2025-2028, Rule 25.2)
- The decision behind the substitution changed, so the substitution may be reversed and is not counted. (出典: FIVB OVR 2025-2028, Rule 25.2.3; Casebook 2024 8.5)

## 25.252 Video Challenge Situations

Cases from the FIVB Casebook: the first fault seen decides, a wrong clip, a broken headset, owning up.

### テスト 1: Video challenge situations

- Under the challenge regulations the first fault seen in the review decides the rally, even if it was not the one challenged. (出典: FIVB OVR 2025-2028, Rule 8.4.5; Casebook 2024 9.5)
- The system is there for fairness, so the 1st referee does not accept a wrong clip unconditionally. (出典: FIVB OVR 2025-2028, Rule 25.2; Casebook 2024 9.8)
- Spares should be at hand; failing that, the scorer gives up his headset and works by hand signals and talking to the 2nd referee. (出典: FIVB OVR 2025-2028, Rule 25.2; Casebook 2024 9.1)
- Hair touching the net is a fault only if it influences the game. (出典: FIVB OVR 2025-2028, Rule 11.4.4; Casebook 2024 3.49)
- The Challenge referee advises; the 1st referee's decisions are final. (出典: FIVB OVR 2025-2028, Rule 23.2.1, 25.2.3)
- The basis for the substitution has gone, so the coach's request to reverse it must be accepted. (出典: FIVB OVR 2025-2028, Rule 25.2.3; Casebook 2024 8.5)
- It was tested so that no review is needed when a team admits a block touch or a net touch. (出典: FIVB OVR 2025-2028, Rule 25.2; Casebook 2024 9.9)
- An opponent's admission is welcome in the spirit of fair play; the 1st referee may accept it and stop the review. (出典: FIVB OVR 2025-2028, Rule 20.2; Casebook 2024 9.9)
- The ball was out once it fully crossed the lower space, and that earlier fault is the one that counts. (出典: FIVB OVR 2025-2028, Rule 8.4.5; Casebook 2024 9.5)
- Keeping the challenge working matters more than the scorer's headset. (出典: FIVB OVR 2025-2028, Rule 25.2; Casebook 2024 9.1)

出典: FIVB Official Volleyball Rules 2025-2028, Rule 25 (paraphrased in original wording; original questions authored from the Rules, not reproduced)

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