Has a FIBA World Cup game ever ended 76-43?
Exactly once. On July 1, 2022, Egypt beat Senegal 76-43, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 76-43 in league history.
That makes 76-43 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 77-43 has happened never and 76-44 has happened never.