For all of you Olympic Games followers, you may or may not be familiar with the equestrian sport of three-day eventing. If you do not follow Olympic sports, you probably have never heard of it until now.Eventing not only is the only Olympic sport where men and women compete equally, but it is a high-risk display of poise, precision, fitness, athleticism, obedience, determination and bravery — and that just describes the horse’s role.Eventing, best described as an “equestrian triathlon,” developed …