What can an admin do?

An admin can edit or delete matches entered by other users.

Moreover, an admin can change a ghost 's name and icon, convert ghosts into regular users, and remove from a group a user who never played any matches within that group.

If approval feature is checked (via 'edit group'), matches must be approved by one or more group admins in order to be included in the group's rankings.

An admin can add or edit match comment after match processing.

An admin can share/unshare a group, and he can unshare a shared match.