Face or Cross

First, pairs are made and a row of pairs is made in the middle of a field, and each row is assigned one of 2 words: face or cross. Apart from that there is a person who will say either face or cross. The row of the word he has to say must run until he reaches the end of the field and his partner, who is in the other row, must try to catch him. If he catches it, the one who caught it wins a point, and if the runner arrives without being caught, the one who just ran wins.