Fouls (3.C): It is the responsibility of all players to avoid contact in every way possible.
Avoid contact in every way reasonably possible, while still playing ultimate. Some contact is inevitable, but players have an affirmative obligation to make reasonable efforts to avoid contact.
Dangerous Play. Actions demonstrating reckless disregard for the safety of or posing a significant risk of injury to fellow players, or other dangerously aggressive behavior are considered "dangerous play" and are treated as a foul. The proper call in such circumstances is "dangerous play" and play stops. This rule is not superseded by any other rule.
The following are non-exhaustive examples of dangerous play:
Resolution. If uncontested, a call of "dangerous play" is resolved as an analogous foul (e.g., if the call occurred while or immediately after the calling player was making a play on a disc in the air, it is treated as a Receiving Foul (17.I.4.b)). A player called for dangerous play may contest the call if they believe the call was incorrect (17.B).
Dangerous play occurring when or immediately after the disc is in the air is treated as a receiving foul if either player involved is attempting a play on the disc. However, the calling player may elect to treat the dangerous play as a general foul, if the player determines that the dangerous play was unrelated to the overall play that decided the outcome of the action.
For example, if a third player appears and grabs the disc far before it reaches the two involved players, or if the disc is thrown to the opposite side of the field, the involved players will not be attempting a play on the disc. However, if multiple players accumulate under a floating disc, one player's dangerous play will be treated as a receiving foul, even if a third player happens to make a successful play on the disc, as the players under the disc were attempting a play on the disc. The calling player would have discretion to deem the third player's play so independent and removed from the involved players that the calling player wishes to treat the dangerous play as a general foul rather than a receiving foul. In general, a calling player's decision that a dangerous play was unrelated to the overall play will be based on the dangerous play being removed in significant distance or time from the overall play. By way of further example, even a dangerous play committed against a player unaware of the approaching disc will be treated as a receiving foul, where the offending player was attempting to make a play on the disc, giving the benefit of the doubt that the calling player could potentially have become aware of the approaching disc, had the offending player made a safe play. In this instance, the calling player could determine that it would not have been possible to become aware of the disc such that the outcome of the play would have changed and therefore elect to treat the dangerous play as a general foul.