Where you finish decides the points. A category needs at least 8 entries to count.
Ranking points are awarded when a category is finished, based on where you finished in it.
A category must have at least 8 entries. Below that it awards no ranking points at all.
A category with fewer than 8 entries is still a real event. It still has a winner, a draw and a full result. It just does not move the ranking table.
An entry is one line in the draw. In doubles a pair is one entry with two people in it, so sixteen doubles entries means thirty-two players.
A bigger field is worth more, because you beat more people to win it.
A more important tournament is worth more. The organiser chooses that level when they create the event.
The base points are 100 for the winner and 70 for the runner-up.
A losing semi-finalist gets 45. A losing quarter-finalist gets 25.
The last sixteen get 12 each. The last thirty-two get 6 each.
Any place after that gets 3.
That base is then multiplied by the size of the field.
The field multiplier is half from 8 entries, 1.5 times from 16, 2 times from 32, 2.5 times from 64, and 3 times from 128. A small field counts, and counts less.
It is multiplied again by how important the tournament is.
The level multiplier is 1 for a local event, 1.5 for a club series, 2 for a regional event, and 3 for a national one.
For example, a winner of a 32-entry category at a regional tournament gets 100, doubled for the field, then doubled again for the level.
That comes to 400 points.
If your category ends with fewer than 8 entries, nobody in it earns ranking points, including the winner. Check the number of entries before you count on the points.
The count that matters is entries. One doubles pair is one entry. A doubles category with 8 entries has 16 players in it.
The league can rebuild the whole table under the current rules. If that happens, older results are recalculated and your total may move.