Registered as “Mirza II.” His “impelling action and brilliance of his victories at Newmarket roused the enthusiasm of racegoers as few horses have done in modern times.” Was limited to six furlongs, but his trainer, Frank Butters, declared him the fastest horse he had ever handled. Won several races. In 1939 retired to stud. In 1940, during WWII, was seized and held by German Army stud, Heeresgestüt, Altefeld, Hesse. In 1946 was sent to England. Sired stakes winners and broodmares.