In other words , that happens about once every 1,000 games , or about four seasons under today 's 16 - game schedule .
In the over 15,000 games that have been played in the NFL , only 15 have ended with a 12 - 6 score .
That happens about once every 1,000 games , or about four seasons under today 's 16 - game schedule .
In the over 15,000 games that have been played in the NFL , only 15 have ended with a 12 - 6 score .