Solved

Championship Standings

I thought that tiebreakers were decided by best finishing position but in my league someone who’s best finish was P12 in the first race, Australia is in the relegation zone while another managers best finish was P18 in Canada and he is not in the relegation zone.

Australia is excluded from the count. Don't know if it still will be with custom calendar or if the 1st track of the season will be excluded now. My bet is on the letter one.