Has an Olympic Basketball (Men) game ever ended 100-85?
Exactly once. On August 23, 2004, Lithuania beat Australia 100-85, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 100-85 in league history.
That makes 100-85 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 101-85 has happened never and 100-86 has happened never.