Has an NFL game ever ended 17-17?
It has. 17-17 has been a NFL final 21 times in 18,234 games. The first was Chicago Rockets and New York Yankees drew on September 20, 1946; the latest was New York Jets and Kansas City Chiefs drew on October 2, 1988.
That makes 17-17 the 241st most common final score out of 1,095 that have ever occurred in NFL. One point away, 18-17 has happened 15 times and 17-18 has happened never. Nearly all of its occurrences fall between 1950 and 1979.