Has an Olympic Basketball (Men) game ever ended 88-51?
Exactly once. On January 1, 1968, Brazil beat Poland 88-51, and no Olympic Basketball (Men) game before or since has ended that way. When it happened it was a scorigami, the first 88-51 in league history.
That makes 88-51 the 126th most common final score out of 698 that have ever occurred in Olympic Basketball (Men). One point away, 89-51 has happened never and 88-52 has happened never.