Has an NBA game ever ended 90-66?

Exactly once. On November 28, 1950, Indianapolis Olympians beat Ft. Wayne Zollner Pistons 90-66, and no NBA game before or since has ended that way. When it happened it was a scorigami, the first 90-66 in league history.

Where 90-66 sits among nearby NBA scores. Deeper blue means a score has happened more often; the outlined cell is the new one.

That makes 90-66 the 2546th most common final score out of 3,189 that have ever occurred in NBA. One point away, 91-66 has happened 2 times and 90-67 has happened 4 times.

Every 90-66 in NBA history

Date	Result	Season
1950-11-28	Indianapolis Olympians over Ft. Wayne Zollner Pistons	1950

Open the NBA grid at 90-66