Has an Olympic Basketball (Men) game ever ended 84-68?
Exactly once. On January 1, 1968, Brazil beat Cuba 84-68, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 84-68 in league history.
That makes 84-68 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 85-68 has happened 2 times and 84-69 has happened 1 times.