Has a FIBA World Cup game ever ended 64-57?
Exactly once. On February 26, 2018, Hungary beat Poland 64-57, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 64-57 in league history.
That makes 64-57 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 65-57 has happened never and 64-58 has happened 1 times.