This leaderboard and its divisions run on Skill Score. Event seeding is a separate number — your Strength rating (opponent-adjusted; see the rules). Skill Score = 0.35 × career GSD + 0.65 × career win rate, confidence-weighted by games played (evidence under ~2 events leans toward the league average). Players rank at their 3rd career event in a format — qualification is per-format, so a blind ranking is earned by playing blind. Divisions are median-anchored quartiles of the confidence-weighted Skill Score among rated players. Every number derives from immutable match records.