bred by James R. Keene, KY, did not race due to injury Ultimus, an unraced son of Commando (by Domino) out of the Domino mare Running Stream. Despite the inbreeding, Ultimus became a very successful sire. Standing 15.3 and weighing 1240 pounds, Ultimus was an impressive looking individual who looked more like a Quarter Horse than a Thoroughbred. He also had a massive 75 inch girth, which is the same size as Secretariat`s girth (Secretariat stood at 16.3). copied from Spectacular Bid`s Facebook Page.