 The simplest form of market to Dutch is two-way, such as a tennis match or a game of football, but any number of runners can be dutched.These examples are based on betting on goals scored in a football game.Sum of reciprocals = 1/(decimal odds at Bookmaker 1) + 1/(decimal odds at Bookmaker 2) = 1/2.1 + 1/1.8 = 0.476 + 0.556 = 1.032

Therefore, this would give a loss of 3.2% (1 - 1.032 = -0.032) of the total stakes, so these odds are not profitable.