Every prediction is written down and archived before kickoff, then reconciled automatically against the final score. Nothing is deleted and nothing is edited — you can check the record yourself.
More from the same archive: referee tendencies, xG versus goals, and model reliability by league.
Kickoff times shown in
Method: each row is written to the database before kickoff with the exact probabilities served on the site at that moment. When the match ends, the stored numbers are compared with the actual result by a scheduled job — there is no manual step and no way to revise a past entry.