STADIUM JUMPING- The stadium-jumping phase is meant to show that a fit and bold horse has the obedience necessary to negotiate a course of show jumps. Performance is evaluated on jumping faults as well as time taken as in cross-country.
COMPETITION LEVELS - The levels of national competition that are recognized are listed in descending order of difficulty: Advanced, Intermediate, Preliminary, Training, Novice and Beginner Novice.
There are three also levels of international competition, the Three Day Events, which are CCI****, CCI*** (Advanced Three Day), CCI** (Intermediate Three Day), and CCI* (Preliminary Three Day).
Also see: http://themarylandhorsetrials.com