Fouls (II.E): It is the responsibility of all players to avoid contact in every way possible .
Avoid contact in every way reasonable possible, while still playing Ultimate. Some contact is inevitable, but players have an affirmative obligation to make reasonable efforts to avoid contact.
Any contact initiated by a thrower with the body (excluding arms and legs extended from the midline of the body) of a legally positioned (XIV.B.3) marker is a foul on the thrower.
Non-incidental contact. The effect of the contact on the marker is important here, as many, but not all, instances of contact will affect continued play with respect to the marker.
Any contact initiated by a thrower with the body (excluding arms and legs extended from the midline of the body) of a legally positioned (15.B.3) marker is a foul on the thrower.
Non-incidental contact. The effect of the contact on the marker is important here, as many, but not all, instances of contact will affect continued play with respect to the marker.