The 1929 Dayton Triangles season was their tenth and final season in the league. As a traveling team, they played all six games on the road, finishing last in the league.
The franchise was sold and relocated to Brooklyn after the season, having lost its final seventeen games over a span of three seasons. During this stretch, the team was outscored 301âÂÂ22.
The 1929 Triangles were coached by Faye Abbott, his second and final season of coaching. Abbott had previously played for the Triangles; between coaching and playing, he participated in 70 of the Triangles' 77 games as a franchise. The franchise was winless under Abbott's head coaching. With the franchise relocating, Abbott would be the Triangles' fourth and final head coach.
The Dayton Triangles were limited to only seven points throughout the entire 1929 season, making them the last team in NFL history to score under ten points in a season. Their lone touchdown and scoring play of the season was scored on a 30-yard fumble recovery by left guard Al Graham (followed by a Pat Duffy extra-point kick) against the Frankford Yellowjackets.
With the team's ceasing operations in Dayton, the NFL lost its longest-lasting traveling team (1920âÂÂ1929), and league lacked another traveling team until the Dallas Texans in 1952.