The level is based on an ELO rating calculated from matches with confirmed scores. Open matches, leagues and tournaments all count.
The match count comes from club reservation records (lessons excluded). Wins are shown only for matches with a recorded score.
Players appear in the club, district and city lists of every club where they are an approved member. A player in several clubs is shown once per list.
At least 5 matches are required to appear; this is the "Matches" count in the list and it is the same for everyone. Players without a level yet are not listed.
Players without a match in the last 12 months are hidden. Their rating is kept and they reappear after their next match.