Dressage -- Horses are judged on forwardness, responsiveness, elasticity, and grace while executing a set pattern of movements in a 40- by 100- meter arena. Rhythmic cadence, quality of movement, and precision of transitions all contribute to the score, as do the elegance and appropriateness of the overall turnout.
Marathon -- Adrenalin surges during the Hazards section of this phase, where six complicated obstacles requiring advance planning plus split-second reactions test horses' obedience, courage, and agility -- and drivers' judgment and skill. Competitors are scored on speed through the hazards (the faster the better), but they must complete other portions of the marathon course -- such as the 15 mph trot phase -- within an optimum time.
Cones -- Many a CDE (combined-driving event) is won or lost on the cones course, a test of precision driving against the clock through a pattern of narrow "gates" defined by pairs of traffic cones with tennis balls balanced on top. Each dislodged ball adds 5 penalty points to the score. With the between-cones distance only 10 inches greater than the carriage's wheel-to-wheel width, executing the course within the time allowed while leaving all the balls in place is a tough challenge for drivers and indicates how well the horses have rebounded from Marathon Day's physical and mental demands.