If "anonymous" is going to separate all classes of hunters, then I think zephania is right on the western horses. How do you define "discipline." If it is a class that you have to separately train the horse for, I can agree with both lists. I you have a speed event horse, for example, but he might be only a cloverleaf barrel horse, or he might also run Texas Barrels, Arena Race, Pole Bending, Stake Race, Flag Race, Four Corner Race, Flag Race, Keyhole Race, Buddy Pick Up, or others. To do well, you will have to train the horse each separate event. The same way with english. A horse might be an over fences horse, but is he a jumper, a steeple chaser, cross-country, a classic hunter, a handy hunter, a hunter hack, or an equitation over fences horse. It depends on how you split them up. The more you know, the more you know differences between each class.