Has an NFL game ever ended 20-20?
It has. 20-20 has been a NFL final 22 times in 18,234 games. The first was Dayton Triangles and Canton Bulldogs drew on October 24, 1920; the latest was New York Giants and Washington Commanders drew on December 4, 2022.
That makes 20-20 the 227th most common final score out of 1,095 that have ever occurred in NFL. One point away, 21-20 has happened 73 times and 20-21 has happened never. Nearly all of its occurrences fall between 1950 and 1979. At one point the score disappeared for 39 years, between 1983 and 2022.