Has a FIBA World Cup game ever ended 86-72?
Exactly once. On July 10, 1986, Brazil beat Spain 86-72, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 86-72 in league history.
That makes 86-72 the 475th most common final score out of 1,178 that have ever occurred in FIBA World Cup. One point away, 87-72 has happened 1 times and 86-73 has happened 7 times.