Has a FIBA World Cup game ever ended 89-85?
Exactly once. On September 9, 2023, Slovenia beat Italy 89-85, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 89-85 in league history.
That makes 89-85 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 90-85 has happened 4 times and 89-86 has happened 1 times.