Team sorting requires that two riders move a herd of ten cattle in numerical order from one round pen into a separate adjoining pen in sixty seconds or less. There is a twelve foot opening between the two pens, and also one blank un-numbered ‘trash’ cows that is mingled throughout the herd. The numbers do matter – so any cow that crosses the line, either out of order or carrying the wrong number, will result in a ‘no time’ for the team.