Then Maelgwn challenged the pair to a horse race. Taleisin arrived the next day with an old, weak horse. As each of the king's horses passed him at the very start of the race, Taliesin touched its rump with a twig of holly. When they had all passed, he dropped his hat to the ground. When the king's horses came back, right before the finish line, they stopped at the holly twigs Taliesin had laid there, and began to dance. Taliesin's old horse strolled back in quite a bit later and won the race.