The fourth phase is the Cattle Trial which tests the ability of a horse and rider to work cattle individually and with teammates. This is a team event: 3 to 4 riders work together to cut pre-selected cows from a herd one at a time in accordance with a pre-established order, and herd them into a holding pen separate from the rest of the herd. The objective is to demonstrate the abilities of cutting/ herding/containing cattle efficiently and accurately.

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The Cattle Trial is option if it is offered at a competition. 

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Only riders in Levels 2 through 7 are eligible to compete in the Cattle Trial. 

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Rules for the Cattle Trial can be found in the USAWE rule book.