Has a FIBA World Cup game ever ended 100-96?
Exactly once. On August 13, 1990, Venezuela beat China 100-96, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 100-96 in league history.
That makes 100-96 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 101-96 has happened 1 times and 100-97 has happened never.