Has an NBA game ever ended 93-76?
Yes. NBA has seen a final score of 93-76 19 times. It first happened on November 26, 1949, when Washington Capitols beat Ft. Wayne Zollner Pistons, and most recently on February 2, 2013, when Chicago Bulls beat Atlanta Hawks.
That makes 93-76 the 1001st most common final score out of 3,189 that have ever occurred in NBA. One point away, 94-76 has happened 19 times and 93-77 has happened 22 times. At one point the score disappeared for 30 years, between 1954 and 1984.