Level 1-- Inhand (Horses are shown in a halter class, not ridden)
Level 2 -- Green under saddle (horses are being ridden, but not jumped)
Level 3 -- Green over fences (horses are now ready to be jumped)
Level 4 -- Training (horses are being schooled to improve the height and complexity of the jumps)
Level 5 -- C Level (more difficult, higher jumps)
Level 6 -- B Level (even higher jumps and more complex patterns of jumps)
Level 7 -- A Level (increasing difficult of jump courses)
Level 8 -- Grand Prix (the highest, most complex jump courses, done by the most talented horses and riders. A horse would have to be competing at this level to qualify for the Olympics in Show Jumping, for instance.)