If I had not just bought a horse I would be interested in him for Endurance! Most people in Endurance do not want a horse already started in the sport. Most Endurance riders ( me included) want something that we can train to ride like we want them to. Hence I just bought a mare that is almost 5. She is broke has had professional training for show. Has been shown, but never stepped foot out on the endurance trail. And honestly I like that. Now I can focus on training her to do the stuff I want her to do on the trail or in the vet check. I don't have to fight with a horse that already has bad habits or tries to do what the old owner had trained him to do. I would definalty get someone to start riding him that way you can say he is being ridden.