v. To do at the wrong time; especially to misjudge the timing of coordinated events.
the GNU version of the Collaborative International Dictionary of English
v. To time wrongly; not to adapt to the time.
The Century Dictionary and Cyclopedia
To time wrongly; say or do inopportunely or out of season.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. time incorrectly
Word Usage
"You can hit that stretched-out receiver (or QB or kicker), but if you mistime it so you even breathe on him before his fingers touch the pigskin, pack."