Has a FIBA World Cup game ever ended 82-49?
Exactly once. On February 24, 2023, Angola beat Uganda 82-49, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 82-49 in league history.
That makes 82-49 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 83-49 has happened never and 82-50 has happened never.