Players earn Standing by winning games, or by losing games where they earn at least two points and their opponent earns at least four. Any other loss is interpreted as an early resignation or non-attempt, and costs you Standing.
I understand that everyone gets blitzed from time to time, but that shouldn't happen often enough to reduce your Standing more than regular games increase it. Unless you are Gary.
Frequently insta-quitting to artificially lower your rating, on the other hand, will nuke your Standing and drop you from these leaderboards. So don't do that. Ta.