Has a FIBA World Cup game ever ended 87-57?
Exactly once. On August 24, 2022, Spain beat Iceland 87-57, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 87-57 in league history.
That makes 87-57 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 88-57 has happened never and 87-58 has happened 1 times.