sentences:  After a round robin within each zone, the winners of each zone get a Hawke Cup Challenge as part of the challenge series against the current holders on a rotational basis.For example 2010-11 holders North Otago played the winner of their own zone (Otago Country) in the first challenge (or the second place team should they win their own zone) followed by challenges by the winners of zone 3, 2 and 1.The team with the Hawke Cup at the end of the challenge series holds it for the winter.