Has a FIBA World Cup game ever ended 103-76?
Exactly once. On August 10, 1994, Russia beat Australia 103-76, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 103-76 in league history.
That makes 103-76 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 104-76 has happened 1 times and 103-77 has happened never.