Has a FIBA World Cup game ever ended 100-59?
Exactly once. On August 26, 2023, Brazil beat Iran 100-59, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 100-59 in league history.
That makes 100-59 the 240th most common final score out of 863 that have ever occurred in FIBA World Cup. One point away, 101-59 has happened never and 100-60 has happened never.