Rules Analysis
WFDF 2017 Rules
17. Fouls
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Any reference in section 17 to 'contact' is considered to be a reference to non-incidental contact, as, per 15.1, a foul is specifically defined as "non-incidental contact".

17.4.
4
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Defensive Throwing (Marking) Fouls:

17.4.1.
1
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A Defensive Throwing Foul occurs when:

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
17.4.1.3.

If a Defensive Throwing Foul occurs prior to the thrower releasing the disc and not during the throwing motion, the thrower may choose to call a contact infraction, by calling "Contact". After a contact infraction that is not contested, play does not stop and the marker must resume the stall count at one (1).

What:
A defensive player initiates non-incidental contact with the thrower prior to the act of throwing, but the thrower does not wish to stop play.

Result:
The thrower can call a contact infraction as per rule 17.4.1.3. If uncontested, play does not stop, but the stall count must be resumed at 1. Extra: The thrower may also choose to call a foul (rule 17.4) on this contact, in which case play stops. If the thrower accidentally calls "Contact" when the contact occurred during the throwing motion this should be treated as foul as per rule 17.4. Contact should only be called when the contact is non incidental -- e.g. it affects the ability of the thrower to freely pivot, fake, or prepare to throw. For incidental contact, the thrower may choose to call a disc space infraction.

17.4.1.3.
Children
17.4.1.3.
Associates
WFDF 2021-24 Rules
17.6.1.3.

If a Defensive Throwing Foul occurs prior to the thrower releasing the disc and not during the throwing motion, the thrower may choose to call a contact infraction, by calling “Contact”. After a contact infraction that is not contested, play does not stop and the marker must resume the stall count at one (1).

What:
A defensive player initiates non-minor contact with the thrower prior to the act of throwing, but the thrower does not wish to stop play.

Result:
The thrower can call a contact infraction as per rule 17.6.1.3. If accepted, play does not stop, but the stall count must be resumed at 1.

Extra:
The thrower may also choose to call a foul (rule 17.6) on this contact, in which case play stops.If the thrower accidentally calls “Contact” when the contact occurred during the throwing motion this should be treated as foul as per rule 17.6 .Contact should only be called when the contact is non minor – e.g. it affects the ability of the thrower to freely pivot, fake, or prepare to throw.For minor contact, the thrower may choose to call a disc space infraction.