It began in 1955 as the
Oi Hai. Its name was changed to
Haneda Hai in commemoration of Haneda racecourse which used to be situated next to Shinagawa. Its distance has been changed several times. It has been run as follows: • from its inception until 1966 at 1,800 meters • from 1967 to 1995 at 2,000 meters • from 1996 to 1998 at 1,800 meters • from 1999 to 2001 at 1,600 meters • from 2002 to 2003 at 1,790 meters • from 2004 onwards at 1,800 meters Until 2023, this race was the first leg of the South Kanto (Minami-Kanto) triple crown with
Tokyo Derby and
Japan Dirt Derby and only horses belonging to Minami-Kanto Horseracing could run.
Dirt Grade Promotion The race was promoted to Domestic Grade 1 (Jpn1) along with
Tokyo Derby in 2024. Formerly the first leg of the South Kanto (Minami-Kanto) Triple Crown, it became the first leg of new Japanese
Triple Crown of Dirt. Entries were expanded to 16 horses with 4
JRA horses and 12
NAR horses. == Trial races ==