Japan's stunning mountain scenery provides the backdrop to the fast-growing sport of trail running. With some 3 quarters of the country designated mountainous terrain, it's perhaps little surprise that Japan hosts numerous mountain-based running events, including a race to the top of Mt. Fuji, and a grueling 415km test of endurance including several peaks of over 3,000m. We report on one adventure racer's remarkable journey covering 301 Japanese peaks, as well as a globally connected event bringing trail running enthusiasts across the world together virtually amid the pandemic.