Rules Analysis
WFDF 2021-24 Rules
15. Calling Fouls, Infractions and Violations
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This rule was changed from the previous rulebook version
This rule was added from the previous rulebook version
This rule has updates in the next rulebook version
15.1.

A breach of the rules due to non-minor contact between two or more opposing players is a foul.

Non-minor contact that occurs accidentally is still a foul – it does not need to be intentional. In fact there should be no intentional contact in Ultimate.

15.1.
Children
1
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15.1.1.

A player intentionally initiating minor contact is still a breach of the rules, but is to be treated as a violation, and not a foul.

15.1.
Associates
WFDF 2017 Rules
15.1.

A breach of the rules due to non-incidental contact between two or more opposing players is a foul.

Non-incidental contact that occurs accidentally is still a foul -- it does not need to be intentional. In fact there should be no intentional contact in Ultimate.

USAU 2020-21 Rules
3.C

Foul: Non-Incidental contact between opposing players (see 3.F for a definition of incidental contact). In general, the player initiating the contact has committed the foul.

USAU 2020-21 Rules
3.F

Incidental contact: Contact between opposing players that does not affect continued play.

For example, contact affects continued play if the contact knocks a player off-balance and interferes with their ability to continue cutting or playing defense.