By each archived competition in the list for the competition type selected from the buttons on the top, there are several links.
Working from right to left, these are:
Reactivate – places the entry back on the list of current competitions in the relevant section.
Season – this shows the status of the competition, in the relevant format.
Tournament –the name of the relevant tournament if the competition has been linked to one i.e. if it is part of a multi-phase competition (not applicable to tournaments themselves).