Has a FIBA World Cup game ever ended 86-54?
Exactly once. On July 3, 2022, Senegal beat Kenya 86-54, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 86-54 in league history.
That makes 86-54 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 87-54 has happened never and 86-55 has happened never.