Tyson

Tyson is Peyton Westfield's horse.

He spooks at other horses and someone says he's going to ban him from competition for being dangerous. Georgie convinces her to let Amy work with him.

Amy believes that it's mostly caused by Peyton not being able to control him so ties up some other horses and gets them close to show him that he won't get hurt and Peyton how to control him properly.