Has an NBA game ever ended 100-79?
Yes. NBA has seen a final score of 100-79 19 times. It first happened on January 11, 1952, when Indianapolis Olympians beat Boston Celtics, and most recently on December 15, 2019, when Sacramento Kings beat Golden State Warriors.
That makes 100-79 the 1001st most common final score out of 3,189 that have ever occurred in NBA. One point away, 101-79 has happened 24 times and 100-80 has happened 19 times. At one point the score disappeared for 33 years, between 1951 and 1984.