Rankings do not move while a tournament is being played. They update on a fixed cycle after results are final, which creates a gap the venue has to explain.
The cycle is administrative
Ranking systems recalculate on a defined schedule, usually after each event concludes, so that every player's total reflects a consistent set of completed results.
Updating continuously would mean a player's position changing mid-match, which is unmanageable for seeding, entry and broadcast purposes.
The delay also allows for verification. Results are checked before points are awarded, and errors caught in that window never reach a published ranking.
Live projections are unofficial
What appears on screens and in coverage during an event is a projection: the ranking a player would hold if current results stood.
Those projections are calculated from the same rules and are usually accurate, but they carry no status and cannot be used for entry or seeding.
Venues label them for that reason, since a spectator seeing a number on a screen reasonably assumes it is official.
The gap matters at cut-off dates
Entry into future events is determined by the ranking published on a specific date, not by the ranking a player has effectively earned.
A player who wins a title just after a cut-off date carries the old number into the next entry list, which occasionally produces striking mismatches.
Those mismatches are visible on site, where a seeded player may be ranked below an unseeded one on current form.
On-site displays reflect the official number
Scoreboards, program listings and player introductions use the published ranking rather than the projection, which keeps the venue consistent with the tournament's own documents.
Announcers often mention both, and the distinction is one of the more common sources of confusion in a stadium.
Tournaments generally prefer the official number in formal contexts, because it is the one the draw and the seeding were built from.
Why the delay is defended
Continuous rankings would be more responsive and considerably less stable, and stability is what the system is built to provide.
Entry lists, seeding and qualification all need a fixed reference, and a number that moves hourly cannot serve as one.
The cost is a ranking that lags reality by days, which spectators notice most at exactly the moment a result has made it obviously wrong.

