Has a FIBA World Cup game ever ended 85-63?
Exactly once. On June 29, 2018, Germany beat Austria 85-63, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 85-63 in league history.
That makes 85-63 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 86-63 has happened 1 times and 85-64 has happened 2 times.