If the thrower has not released the disc at the first utterance of the word "ten," it is a turnover. The marker loudly announces "stall" and play stops. If the disc is thrown, play continues until the outcome of that pass is determined. A stall is not a violation and the Continuation Rule (17.C) does not apply.
The thrower may contest a stall call in the belief that the disc was released before the first utterance of the word "ten" or if the marker committed a fast count such that the thrower did not have a reasonable opportunity to call "fast count" before the first utterance of the word "ten." If a stall is contested:
If the pass was complete or 15.B.1.b applies, play stops, players return to their positions at the time of the throw, and possession reverts to the thrower. After a check, the marker resumes the stall count according to 15.A.5.b.3.