A free app for Android, by Jockey Games.

Horse Riding rivals: Horse Race is a 3D racing game that offers an immersive racing experience for players of all ages and skill levels. With a variety of game modes and several race tracks, players can choose to compete in a variety of races. 

The gameplay is simple and easy to get started with, and even the younger ones can easily navigate their way through the game. There are also different kinds of horses that players can train and ride, with each having its own characteristics and abilities. By mastering the controls and becoming a skilled racer, players will be able to ride at a high speed and with great stamina.