Club rating is calculated using your NASPA rating if you have one, and gets adjusted according to the Elo rating system. If you’re new to competition, you can expect an initial club rating of 500. If you later receive a different first-time NASPA tournament rating, we’ll adjust your club rating accordingly. We will also, on occasion, artificially adjust new players’ club ratings based on performance.
Note that win record on stats isn’t a direct measure of skill; this can depend heavily on pairings and variance.