Has an NBA game ever ended 99-64?

Exactly once. On April 24, 1997, Miami Heat beat Orlando Magic 99-64, and no NBA game before or since has ended that way. When it happened it was a scorigami, the first 99-64 in league history.

Where 99-64 sits among nearby NBA scores. Deeper blue means a score has happened more often; the outlined cell is the new one.

That makes 99-64 the 2546th most common final score out of 3,190 that have ever occurred in NBA. One point away, 100-64 has happened 2 times and 99-65 has happened 1 times.

Every 99-64 in NBA history

Date	Result	Season
1997-04-24	Miami Heat over Orlando Magic	1996	Playoff

Open the NBA grid at 99-64