Translation of "Rider" in Japanese

To keep him from watching "Knight Rider" reruns all day?

『ナイトライダー』の再放送を 一日中 見続けないようにするにはどうするか？

- The prancing chestnut mare neighed as she tried to get rid of the rider.
- The prancing chestnut mare whinnied as she tried to get rid of the rider.

棹立ちした栗毛の牝馬は嘶き、騎手を落とそうとした。