Rules Analysis
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.
The Principle of Verticality: All players have the right to enter the air space immediately above their torso to make a play on a thrown disc. If non-incidental contact occurs in the airspace immediately above a player before the outcome of the play is determined (e.g., before possession is gained or an incomplete pass is effected), it is a foul on the player entering the vertical space of the other player .
If the disc is caught (or rendered uncatchable) before contact occurs, then the outcome of the play is determined already and the contact is not an infraction of this rule.
The Principle of Verticality: All players have the right to enter the air space immediately above their torso to make a play on a thrown disc. If non-incidental contact occurs in the airspace immediately above a player before the outcome of the play is determined (e.g., before possession is gained or an incomplete pass is effected), it is a foul on the player entering the vertical space of the other player.
If the disc is caught (or rendered uncatchable) before contact occurs, then the outcome of the play is determined already and the contact is not an infraction of this rule.