Scores are a combination of competition attendance, round participation and round placing. Judging participation will be recorded for end-of-season events, but no longer counts toward the points tally.
The current member rankings for each division (after 1 competition) are:
Riders that have moved up or down a division have carried the points they had already accumulated.
You can close the gap on the leaders really easily just by showing up, competing in your round. Obviously, scoring well and placing in your division helps a lot, but if one of those division leaders misses a competition, you could jump quite a few ranks.
Maximum competition score is 1000 points per round - which is signing on, participating in your round, making it through to the finals and coming 1st.