Sorry I haven't gotten back to you. The information on championship points is here:
http://www.wargear.net/help/display/Rankings
Basically, every game you win or lose updates your BOARD RANKING for that board (as well as your GLOBAL RANKING overall). If you are in the top 10 players in BOARD RANKING on a certain board (and your board ranking is over 1050), you get championship points. The amount of CP's you get for that board depends on your place in the top 10 and your board ranking.
Does that answer the question?