After McNair was injured in the first game of the 2007 season against the Cincinnati Bengals, Boller was given the opportunity to start. He came in late in the game and was unable to pull out a victory. Boller was then named the interim starter in Week 2, in a home game against the New York Jets. He had a strong showing, throwing two touchdowns and no interceptions for 185 yds and a QB rating of 97.9. In Week 3, McNair retook the reins of the team, facing the Arizona Cardinals. The team was up in the 4th, and they switched Boller in to rest McNair, and in spite of a late comeback effort by Kurt Warner, Boller managed to get the team in position for a game-winning field goal. The following 2 games Boller was back on the bench. In weeks 6 and 7, Boller was once again named the interim starter for the Ravens.