Traveling: The thrower must establish a pivot at the appropriate spot on the field and keep all or part of the pivot in contact with that spot until the throw is released. Failure to do so is a travel and results in a stoppage of play and a check .
Results in a stoppage of play and a check only if the travel is called.
The thrower fails to touch the disc to the ground when required (XIII.B).
The thrower fails to touch the disc to the ground when required (14.B).