Has an Olympic Basketball (Men) game ever ended 73-54?
Exactly once. On July 31, 2012, Russia beat China 73-54, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 73-54 in league history.
That makes 73-54 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 74-54 has happened never and 73-55 has happened 2 times.