||Playoff win %
Lou Mahrt was a football coach in the National Football League (NFL) during the 1927 season as the head coach of the Dayton Triangles. During his lone season in the NFL the Triangles went 1-6-1. He was the head coach of the Triangles for the 1927 season. The Triangles went 1-6-1 in this lone season as a head coach. During his career he was a head coach for one season.
Coach history guide
|Seasons with a championship win
||Seasons with a conference championship