Since the start of the COVID-19 pandemic, Japan's top sportscar series has stuck mostly to its regular race distance of 300km, with the exception of last year's traditional Golden Week 500km race at Fuji Speedway in May.
However, in 2022, this event has been cut to 450km, while two other races, the August Fuji round and the second Suzuka race that follows later that month, will also be run over 450km for the first time.
