Ok I looked a little deeper and it is a open team tournament next question is can you sign up at the ramp the morning of the tournament
under their rules #4 says,,,
4.) REGISTRATION: Registration may be by mail (if postmarked on or before Tuesday prior to event) and
at takeoff site on the morning of the tournament beginning approximately 2 hours before sunrise. Contestants will receive boat I.D. numbers according to order received.