1. How do you qualify for the Limit Rider division? Not sure, I'll let someone else answer this.
2. What do you do in a medal class? In a medal class you create your own pattern to do as well as the pattern assigned by the judge. You usually write it on a piece of paper, keep it in your pocket, and if the judge asks for it and you don't have it, instant DQ.
3. Do you literally win a medal in a medal class if you get 1st place? Not where I've shown
4. What do you do in the Bridle Path Hack class? Again, I'll let someone else answer this
5. What do you do in a Showmanship class? Do a search on youtube for 'horse showmanship'. It's supposed to show your horse's ground manners in hand. You are usually asked to walk and trot your horse, stop, pivot, and back.