Has an Olympic Basketball (Men) game ever ended 108-90?
Exactly once. On July 19, 1976, Mexico beat Japan 108-90, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 108-90 in league history.
That makes 108-90 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 109-90 has happened 1 times and 108-91 has happened never.