Change history
On the team page, the history shows a table: date, player, change and who made it. Filters: joins, departures, roles and captaincy, founding and disbanding. The history is public and built from system entries — nobody corrects it by hand.
Roster periods
A period is a time when the playing roster (captain, players, substitutes) did not change. A new period starts when a playing member joins or leaves. Role changes within the roster and staff changes do not end a period. Each period shows the results of tournaments that started during it.
“PlayZeek administration”
A change made by the staff (e.g. in a frozen roster) is signed with the role, not the nickname of a specific person — it is a decision of the platform, not a moderator's private matter. Details are in the ticket the change was about.
“Deleted player”
When an account is deleted, the history shows “Deleted player” instead of the nickname, with no link. The entries stay, so roster periods are calculated the same way.