The DiRT Tour is a single player game mode in the game DiRT 3. It consists of several different tournaments in which you have to race to get enough points to get to the next tournament. Usually you have to play Rally, Rallycross, Head 2 Head, Landrush, Gymkhana and Trailblazer. If you win the races you will get more points. At the end of each tournament is always a final. The final is mostly a race which costs more time.
After three tournaments there's the tournament called the X Games. If you win the final you will get a section of the Battersea with missions to find hidden packages and to make donuts, spins, drifts and jumps.