京都競馬場
Mejiro McQueen did not race as a two-year-old but made a successful racecourse debut over 1700 metres on dirt in February 1990 at Hanshin Racecourse. He was beaten in his next three starts before taking two minor races at Hakodate Racecourse in September. On 4 November at Kyoto Racecourse he recorded his first major success in his last run of the year when he took the 3000 metre Kikuka Sho.