サマーサンセットラン2026 inクラサスドーム大分

The Summer Sunset Run in Crassus Dome Oita is an evening race in Oita Prefecture, scheduled for midsummer instead of the typical autumn racing season. Organizers set it for late in the day so runners can avoid the hottest hours, a consideration for a race planned specifically for the summer heat. The event addresses a local need: Oita Prefecture lacks marathon events from June through the end of October, leaving a five-month period without races on the calendar. It is intended for individuals using the summer to maintain fitness, particularly runners using it as preparation for autumn events.