FAQ: What does "Recalculations Pending" mean?
If you see the "Recalculations Pending" message on your Overview page, that means that your Top Bands/Venues/Locations lists are still in the process of being recalculated. A recalculation happens after you add or remove a concert, mark a band as seen/not seen, etc.
Once your lists have been recalculated, the message will disappear.