History
Ōi Keibajō Mae Station opened on 27 May 1965 as the Tokyo Monorail's first intermediate station, built specifically to handle race-day crowds at the adjacent Ōi Racecourse. Land reclamation had not yet reached the beamway when the station opened, so the platform was initially a temporary structure suspended over the water and used only on race days. The temporary platform was replaced by a permanent year-round station on 1 June 1967, and the reclaimed land around it became the Yashio Park Town housing complex. A two-storey station building was constructed in August 1984. The station was rebuilt in August 1984, automatic gates were installed on 28 May 1998, Suica acceptance began on 21 April 2002, and a full renewal opened on 3 August 2020. Today the station, code MO 03, has two opposed elevated side platforms.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
When it opened in 1965 land reclamation had not yet reached the station's beamway, so the platform was a temporary structure suspended over open water — used only on race days at Ōi Racecourse.