Simples..
Points are given on your finishin position after the night, so if you come first overall at the end of night you get 100 points. Second gets 99, third 98 and so on. these points go towards the championship which there are 8 rounds with 5 to count (providing I don't lose any results again
) So your best five scores go towards your final total points. The person with the highest amount of points wins.