A jogging cart for exercising and training race horses includes a shell to protect the driver from the elements and from mud and debris kicked up by the horse. A very strong wheel mount is provided in conjunction with a supporting frame member for the shell which can be molded into the shell or body of the cart. A transparent windshield on the shell includes a forward gate section which may be opened. Below the gate section on the shell is a support ledge for reins. Simplicity of construction and durability are prime features of the jogging cart.