Has an Olympic Basketball (Men) game ever ended 52-47?
Exactly once. On August 13, 1948, Brazil beat Mexico 52-47, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 52-47 in league history.
That makes 52-47 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 53-47 has happened never and 52-48 has happened never.