The other two games since 1990 where the average height of the starting quarterbacks was below six feet also involved Flutie facing a 73-inch quarterback: a 24-21 win in 1999 against Pittsburgh and Kordell Stewart and a 17-16 win year earlier against Mark Brunell and the Jags.
You have to go back to 1978 to find a game before tonight where (1) the average height of the starting quarterbacks was under six feet and (2) Doug Flutie was not involved. Fran Tarkenton (6’0) and Pat Haden (5’11) met five times in the mid-to-late ’70s, and Billy Kilmer (6’0) also faced Haden in the final game of the 1977 season.
Kilmer and 5’11 Bob Berry met three times in the early ’70s, and Sonny Jurgensen (5’11) faced Gary Cuozzo (6’0) and Tarkenton twice each. The only other games of the post-merger era were Len Dawson (6’0) vs. Berry in 1972 and Bill Nelsen and Edd Hargett in 1971.
In the pre-merger era players were shorter and smaller. Eddie LeBaron (5’9), Frankie Albert and Ted Marchibroda (5’10), Jurgensen, Sam Etcheverry, and Tommy O’Connell (5’11), and Y.A. Tittle, Don Heinrich, George Ratterman, and Johnny Lujack (6’0) were involved in many matchups where the average height was below six feet. The shortest matchup since 1950 was this game between LeBaron and Marchibroda in 1956.
Just missing the cut? Four games between Brees and fellow (listed) six footer Michael Vick, and games between Vick and Tim Rattay and Vick and Rodney Peete (both listed at six feet). The tallest matchup in NFL history occurred in the 1994 regular season finale. In that game, Vinny Testaverde (6’5) proved he was up to the challenge, leading Cleveland to a 35-9 victory over Dan McGwire (6’8) and the Seattle Seahawks.