Has a FIBA World Cup game ever ended 137-84?
Exactly once. On August 19, 1982, Spain beat Colombia 137-84, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 137-84 in league history.
That makes 137-84 the 240th most common final score out of 863 that have ever occurred in FIBA World Cup. One point away, 138-84 has happened never and 137-85 has happened never.