Pick a match. Before first serve you get the pre-match model. Once play has started, tap the current completed-set score and you get the model's exact conditional — the same closed-form engine, entered at that score state, precomputed at the last scan.
Set states only — within-set score, serve stats and injury news are not yet factored (they arrive with the in-play model v2). Probabilities are model estimates, not betting advice. Data refreshes with each site update.