During which moments may substitutions occur?

• A. Only during halftime.
• B. After every scoring play regardless.
• C. During dead-ball stoppages, after goals, or per the rules of the format.
• D. Substitutions never allowed.

Answer: (C)

Substitutions in Ultimate Frisbee are allowed only during breaks in play. They can happen during dead-ball stoppages (like timeouts, injuries, or when the disc is not in play), after a goal is scored, or according to the specific rules of the competition format (such as halftime or other designated substitution windows). You can’t substitute while the point is in progress or while the disc is actively in play, so the timing is limited to those stoppages. The option that limits substitutions to halftime is too restrictive, and the idea that substitutions occur after every scoring play regardless ignores format rules and situations where a substitution isn’t permitted at that moment. The view that substitutions never happen is incorrect because substitutions are a standard part of managing players and adjusting strategy between points and at stoppages.