Has an Olympic Basketball (Men) game ever ended 82-57?
Exactly once. On August 19, 2004, Argentina beat China 82-57, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 82-57 in league history.
That makes 82-57 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 83-57 has happened never and 82-58 has happened never.