In February 1950, Sydahar took over as the Rams' head coach. In his first season as head coach, he led the 1950 Rams to the NFL Western Division championship with a 9–3 record and the top offense in the NFL (38.8 points per game). In the 1950 NFL Championship Game, the Rams lost, 30–28, to the Cleveland Browns on a field goal by Lou Groza with 27 seconds remaining in the game.