Has a FIBA World Cup game ever ended 65-54?
Exactly once. On July 1, 2022, Tunisia beat Cameroon 65-54, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 65-54 in league history.
That makes 65-54 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 66-54 has happened never and 65-55 has happened 1 times.