Dirkie, I'm assuming you're after how a wave is judged rather than how the rankings for your province work. If you're after how the rankings work then you will need to speak to someone from your provincial committee or reply to this post, being more specific and you may get a reply.
As far as how judging works, again I'm not sure what rule book is being followed, however, take a look at the
IBA (International Bodyboarding Association) Rule Book which is online
http://www.ibatour.com/pages/?pageID=1191 - specifically the sections
J. Judging and
L. Interference. They are specific to the IBA's World Tour events so local rules may differ slightly (can anyone confirm what rule book SABA is following?). In the absence of any online info for SABA, this is your next best source of information to try to understand judging and contest rules.
I've copied the following criteria below - I'll be surprised if they differ much from anything which SABA or your province is using.
Quote:
J(d) Criteria to be used in judging:
A bodyboarder must execute the most radical manoeuvres in the critical section of the wave, with the fluid linking and combinations of maneuvers, combining speed and power throughout. The bodyboarder who executes such maneuvers on the biggest and best waves for the longest functional distance shall be deemed the winner.
That's the basics of it, but converting that into a score from 0-10 is the hard bit. Your best bet would be to attend a judging seminar, both for your understanding so you can compete better and to also put something back into the sport - each contest needs judges who are few and far between. Judging does pay a little and has been for many riders a means of subsidising their trips to the contests. If you cannot find any seminars - they sometimes have them at the SABA events - then hound your province to host a seminar.