Has a FIBA World Cup game ever ended 59-53?
Exactly once. On July 1, 2018, Egypt beat Morocco 59-53, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 59-53 in league history.
That makes 59-53 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 60-53 has happened never and 59-54 has happened never.