Has an Olympic Basketball (Men) game ever ended 64-54?
Exactly once. On January 1, 1968, Spain beat Senegal 64-54, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 64-54 in league history.
That makes 64-54 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 65-54 has happened never and 64-55 has happened 1 times.