It depends on what kind of horse show you enter. There are many, many types of shows out there.
The most common in the east are ring shows and three-day events. At ring shows, they have a variety of classes for every discipline. For English riding, they have:
Equitation - where the rider is judged
Pleasure - where the horse is judged
Discipline on the Rail - aka command. The horse must perform different gaits and transitions quickly and efficiently.
Bridle Path Hack - Like a road hack class. Looking for how much ground a horse can cover.
Jumping - Many different heights for every rider.
For Western riding, they have -
Horsemanship - Like equitation. The rider is judged.
Pleasure - same as English definintion.
Trail - The horse is judged on their ability to perform different obstacles, such as a bridge, opening and closing a gate, turns, etc.
Rodeo classes - Barrel racing, pole bending, and many gymkhana events. Mainly a speed race.
There are also driving classes at many shows.
Saddleseat is a popular discipline in the east as well. They have the same classes as any English rider. (They do not jump, however).
For English riders, they have flat classes (where you perform requested gaits in a ring) and jumping classes (where you perform with your horse over a course of fences).
In a three-day-event or three-phase, there is dressage, which is where you perform a pattern on your horse, cross country, a one-way run with jumps in it, usually obstacles you would encounter on a trail, and stadium or show jumping, which is the pole-and-standard jumps in the ring. There are many different levels of three-phases, from schooling shows to the Rolex event in Kentucky to the Olympics.
Showmanship is a popular class as well. This is where the rider or owner takes their horse into the ring (just in a bridle or halter, you are not riding) and presents the best of their horse to the judge. Your horse must be clean, and they must be obedient and calm. Usually, horses are asked to trot, walk, and halt along a line to show obedience and respect.
There are also many fun classes at horse shows, like costume class, cake walk, and many gymkhana events.
Just remember that there are tons of things to choose from at horse shows, but consult your trainer or instructor to see which classes would be appropriate for your level of skill.
It is a type of horse show that has many classes, and in some of the classes you do, you show that your horse can be versatile and do many different things. eg. veteran classes, (which is where you show how good your horse is for their age - over 15's only), you show that your horse can do lots of things even though he is considered an old horse.
Just about any horse can be shown in a horse show. There are even shows for model horses. The horse should be suitable for the type of classes you want to show in, but other than that there really aren't any restrictions unless the show is breed specific.
You could enter the classes in which you and the horse have been properly trained and have practiced well.
It depends on the show. For some in-hand or lunging classes, your horse can be a yearling, or even younger. For most riding classes, your horse will need to be at least 3 years old, and some require the horse to be 5 or even older. Sorry for being to vague, but it depends on the show and the class, so i really can't give you a direct answer. If you asked a more specific question perhaps I could help you better.
Well, it depends on in what classes you are going to show the horse. It also depends if you are going to be riding English or western. The rules vary from place to place but basically,you must have you're bit approved (in most show arenas)no martingles during flat classes are allowed (you can put them on for jumping classes)At some arenas, you can not show or ride stallionsyou must always have a helmetyour trainer is not allowed to ride your horse in a class (usually)
Yes, the National Show Horse breed was begun in part to participate in saddle seat classes.
It depends on the show, the blemish and the events you enter. If your horse has one eye or scars, he won't do well in halter classes. How large is the show. A small one-day schooling show is less demanding than a four day, multi-judged breed show.
Equitation is the art or practice of horse riding or horsemanship. More specifically, equitation may refer to a rider's position while mounted, and encompass a rider's ability to ride correctly and with effective aids. Inhorse show competition, the rider, rather than the horse is evaluated. Such classes go by different names, depending on region, including equitation classes, rider classes, or horsemanship classes.
showjumping, jumpers, and flat classes (no jumping, just walk trot and canter).
There are classes for every level of rider. From lead line (were someone walks and trots with you holding your horse) to 3'6 jumping courses.
I have never heard of an entire show devoted to bareback riding. There are some clubs that will include a few bareback classes. If you know of some local horse clubs in your area that sponser shows contact them for a show premium. Or contact the AHSA (American Horse Show Assoc.) and get some info on what shows will be in your neck of the woods.
The Scottsdale Arabian Horse Show is the biggest Arabian Horse Show in the world.