Has a FIBA World Cup game ever ended 69-61?
Exactly once. On September 4, 2019, Argentina beat Russia 69-61, and no FIBA World Cup game before or since has ended that way. When it happened it was a scorigami, the first 69-61 in league history.
That makes 69-61 the 240th most common final score out of 863 that have ever occurred in FIBA World Cup. One point away, 70-61 has happened never and 69-62 has happened 2 times.