While touching the rubber, a right handed pitcher must step and throw to an occupied base (except for 2B) once he starts his pick-off attempt. When throwing a pick-off to 1B, this move is often described as Pivot, Step and Throw. The pitcher must “step ahead of the throw.” A wild throw that goes into Dead Ball Territory (DBT) will cause the runner to advance one base.
A pitcher may also step backwards (towards 2B) off the rubber to attempt a pick-off throw. Once the pitcher legally disengages from the rubber, he is technically an infielder so he may fake a throw to any base without penalty. However, once off the rubber, any wild throw into Dead Ball Territory (DBT) will be penalized by runners advancing two bases rather than one.