Equestrians train at an arena, at stables where the rider's horse is kept. Special training is needed. Riders train many hours a day to keep getting better, and to make sure their horse is healthy and well excersized. They practice new techniques and little things to help them get better and better. Equestrians usually train 5-7 hours a day, 5 days a week.
Equestrian is very dangerous. Riders take the risk of this sport. They can get seriously injured, or even killed. The average pay for equestrians is $51,585. Aside from training a lot, riders still have time for their own personal hobbies, activities, etc.
Riders have very strong legs and arms, to control their horse and not fall off. People love that you can have an unbreakable bond with your horse. What people don't like is that riders can be badly hurt. There are no physical requirements for this sport, even if you have a condition. You would just need special equipment.
A team of a female rider and a horse race around three barrels, in hope for the fastest time. Any knocked barrels cause deducted points.
A team of a rider and horse jump over several jumps in a certain order. Any knocked poles cause deducted points.
A team of a jockey and a horse (usually a thoroughbred) race around a track in hopes for the fastest time.