Has an Olympic Basketball (Men) game ever ended 83-58?
Exactly once. On August 15, 2004, Spain beat China 83-58, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 83-58 in league history.
That makes 83-58 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 84-58 has happened never and 83-59 has happened 1 times.