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.
Force-out Foul: If an airborne player catches the disc and is contacted by an opposing player before landing, and that contact causes the player to land out-of-bounds instead of in-bounds, or out of the end zone instead of in the end zone, it is a foul on the opposing player and the fouled player retains possession at the spot of the foul. If an uncontested force-out foul results in an in-bounds player landing outside the end zone being attacked when they would have landed in the end zone without the foul, a goal is awarded.
Force-out Foul: If an airborne player catches the disc and is contacted by an opposing player before landing, and that contact causes the player to land out-of-bounds instead of in-bounds, or out of the end zone instead of in the end zone, it is a foul on the opposing player and the fouled player retains possession at the spot of the foul. If an uncontested force-out foul results in an in-bounds player landing outside the end zone being attacked when they would have landed in the end zone without the foul, a goal is awarded.