The "Ten Minute Box" is a compulsory halt included during the cross-country section of a three-day event after the roads and tracks and steeplechase phases and before the "pure" cross-country jumping phase. It is a pause designed to allow the horse (and rider!) time to cool off, rest and stabilize its vitals and ensure that it is prepared for the "pure" cross-country phase. In the Ten Minute Box, riders and assistants will cool the horse down, walk the horse around and check tack and studs and a veterinarian will inspect the horse - including checking its heart and respiration rates - to determine if it is fit to compete in the final "pure" cross-country phase.