Has a FIBA World Cup game ever ended 89-63?
Exactly once. On February 26, 2023, Senegal beat Cameroon 89-63, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 89-63 in league history.
That makes 89-63 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 90-63 has happened 1 times and 89-64 has happened 2 times.