The Derby Grand Prix (in Japanese: ãÂÂã¼ãÂÂã¼ã°ã©ã³ãÂÂãª) was a Japanese horserace for three-year-old Thoroughbreds in the Iwate Prefecture Horse Racing Association.
The race was established in 1986. It was for 4-year-olds, but changed to 3-year-olds in 2001.
The race was graded as a Grade-1 race in 1997 and was then moved down to Grade-M1 in 2016.
The race took place at Morioka Racecourse from 1996-2011.
The race was discontinued in 2023 as it was merged to the , which was given a JpnII grade and status as a trial race for the Japan Dirt Classic.
Past winners include: