Has an Olympic Basketball (Men) game ever ended 82-66?
Exactly once. On September 23, 2000, Lithuania beat China 82-66, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 82-66 in league history.
That makes 82-66 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 83-66 has happened never and 82-67 has happened never.