Trained by the mighty Vincent O'Brien and ridden by the master jockey Lester Piggott, maybe it is no surprise that Alleged proved to be an outstanding horse. He met with defeat on just one occasion, in the St Ledger, where he was a close second. His main claim to fame though is his consecutive victories in the Prix de l'Arc de Triomphe in 1977 and 1978. This is an outstanding achievement and without doubt marks Alleged down in the all time greats category. After his retirement he was sent to stud. He went on to produce two further classic winners in Midway Lady and Law Society.