Japan Marathon Guide: Tokyo Marathon, Hakone Ekiden & Running Culture

Running has become one of Japan's most popular forms of exercise and community. After the 2007 launch of the Tokyo Marathon as a mass-participation event, recreational running exploded across the country. Today, Japan hosts hundreds of marathons annually, ranging from the major world-series events in Tokyo and Osaka to intimate rural trail races through mountain forests and along ancient pilgrimage routes.

The Japanese approach to running reflects broader cultural values: discipline, consistency, and community. The concept of jintoku (personal virtue through daily physical practice) applies to running as much as martial arts. Many Japanese runners wake before dawn for morning runs (asa-jog) as a daily ritual. Corporate running clubs (kaisha ren) are common, and the culture of hashiri (dedicated long-distance running) has a dedicated subculture of training groups, running specialty stores, and event calendars.

Japan also produces world-class marathon runners. Yuki Kawauchi famously ran 78 marathons over 10 years while working as a full-time government clerk — winning the 2018 Boston Marathon and sparking a cultural conversation about amateur dedication. The Japanese national marathon and ekiden relay systems produce runners who regularly finish in the top 10 of major world marathons.

For visiting runners, Japan is an exceptional destination: safe running routes through historic districts, well-marked park circuits, numerous race events throughout the year, and excellent running gear shopping in specialty stores like Asics, Mizuno, and On Running outlets.

The Tokyo Marathon (東京マラソン) is one of the six Abbott World Marathon Majors alongside Boston, London, Berlin, Chicago, and New York. Held annually in early March, it draws over 38,000 runners from around the world and is consistently rated among the world's best organized marathons.

The course runs from the Tokyo Metropolitan Government Building in Shinjuku through the heart of the city — past Asakusa, through Nihonbashi, along the Imperial Palace, through Ginza, and finishes in the Marunouchi business district. The course is largely flat and fast; it has produced multiple course records.

Entering the Tokyo Marathon: Applications open each August-September via lottery for the following March race. International runners have a dedicated entry category — approximately 10,000 spots are reserved for non-residents, accessible through authorized overseas travel agents offering official package entries. Packages typically include race entry + hotel + sometimes airport transfers. The major official international entry agents include Charm Travel, JTB Sports, and overseas registered agents listed on the official Tokyo Marathon website.

Charity entries are also available: runners who fundraise a minimum amount for official charity partners receive guaranteed entry.

Spectating the Tokyo Marathon: Over a million spectators line the course. Key viewing spots are: Shinjuku (start, 7:05 AM), Asakusa (near Kaminarimon gate, around 16km), Nihonbashi (20km), and Hibiya/Ginza (30–35km). The finish area near Tokyo Station is accessible only with a runner's escort pass.

The Hakone Ekiden (箱根駅伝) is not a public marathon but rather Japan's most-watched sporting event — a university relay race held January 2 and 3 annually. Twenty university teams run from Otemachi (Tokyo) to Hakone and back, covering approximately 217 kilometers across ten legs.

The race is a cultural phenomenon. Television ratings rival the World Cup; families gather around screens on New Year holiday days to follow their alma mater's team. The mountain section (leg 5 going up and leg 6 coming down the Hakone mountain pass) is the most dramatic — a brutal climb that has broken many runners while creating legendary displays of ganbaru spirit.

Popular universities dominate the winner's list — Aoyama Gakuin, Komazawa, Toyo, Waseda, and Keio among the most successful in recent years. A strong Hakone Ekiden performance is essential for recruiting top high school runners, making it integral to university running programs.

Watching as a spectator: The course is open to spectators anywhere along the route. Key sections: the start at Otemachi (7 AM, January 2), the relay exchange point at Tsurumi (leg 1/2 transition, roughly 8 AM), the approach to Fujisawa (leg 3, interesting coastal views), the Odawara relay point (leg 4/5, around noon), and the dramatic mountain ascent to Hakone-machi (leg 5 peak, early afternoon). Spectators line residential streets — there are no ticket requirements.

The return journey (January 3) sees the order reversed; the final leg finishes at Otemachi by approximately 2–3 PM.

Osaka Marathon (late October/November): One of Japan's largest mass-participation marathons, running through central Osaka and the waterfront. Approximately 30,000 participants. Entry via lottery, results announced in July. The course passes historic Osaka Castle and crosses multiple bridges over the city's famous canal system.

Kyoto Marathon (mid-February): A scenic course that passes through many of Kyoto's UNESCO World Heritage sites — the approach to Fushimi Inari, the Kamo River, Nanzenji area, and finishing near Nijo Castle. Lottery entry opens in August. Limited to approximately 15,000 runners. Popular among international runners for its cultural scenery.

Nagoya Women's Marathon (March): One of the world's largest women-only marathons, with approximately 20,000 participants. The Nagoya Women's Marathon has repeatedly set the world record for women-only marathon events. Offers a uniquely celebratory atmosphere with cherry blossom season beginning along parts of the course.

Hokkaido Marathon (late August, Sapporo): Japan's major summer marathon in one of the country's coolest cities. August in Sapporo is far more temperate than central Honshu — average temperatures around 20°C — making this one of Japan's more runner-friendly summer events.

Lake Kawaguchi Marathon (November, Yamanashi): Run around the shores of Lake Kawaguchi with Mount Fuji as a constant backdrop. One of Japan's most scenic marathons, but limited to around 10,000 runners. Entry via lottery.

Japan's major cities have excellent dedicated running infrastructure:

Tokyo: The Imperial Palace loop (5km circuit around the palace grounds) is Tokyo's premier running route — used daily by thousands of business people before and after work. The counterclockwise convention keeps runners in order. Yoyogi Park (inner circuit ~2km, outer ~1.7km), Shinjuku Gyoen (inner paths, no cycling), and the Sumida River path from Asakusa south to Hamarikyu are other favorites. Komazawa Olympic Park (designed for the 1964 Tokyo Olympics) has a measured 2.1km circuit.

Kyoto: The Kamo River embankment running north from Demachiyanagi is flat, scenic, and connects multiple bridges — ideal for long runs. The Fushimi-Momoyama area south of the city offers trails alongside the Uji River. The Arashiyama bamboo grove area has early morning running before crowds arrive (arrive before 7 AM).

Osaka: The Nakanoshima island park between the two branches of the Dojima River is a flat 1.5km circuit. The Osaka Castle park perimeter is a popular 3km loop with city views.

Sapporo: Odori Park (central east-west axis through the city) connects to the botanical garden area for a relaxed city run. Hokkaido University campus is open to public runners with tree-lined paths.

Running stores: Asics has flagship stores in Tokyo (Shinjuku), Osaka, and other cities; Runbase (JR East running station adjacent to Tokyo Station) offers lockers, showers, and gear rental for runners doing city loops.

Gear: Japan is a runner's paradise for gear shopping. Asics (founded in Kobe), Mizuno, and On Running have flagship stores. Running specialty shops like Super Sports Xebio, Runnet stores, and dedicated road-running shops in Akihabara and Shinjuku stock gear unavailable outside Japan. Limited-edition Tokyo Marathon official merchandise is released in the weeks before the race and sells out quickly.

Running etiquette: yield to pedestrians, run at a pace appropriate for shared paths, remove earbuds when passing crowded areas. Some parks prohibit cycling but encourage running; check signage. The clockwise/counterclockwise convention at the Imperial Palace (counterclockwise standard) is important for flow.

Races for tourists: If not entering a major marathon lottery, shorter races are more accessible. Fun runs (health run) of 5–10km are held in many cities on weekends — often attached to local festivals. The Ekiden relay format (teams of multiple runners each running a leg) is enormously popular for company teams and community groups.

Onsen recovery: Many Japanese marathons are in regions with onsen facilities. Post-race hot spring soaking is a standard part of marathon recovery culture. The Kyoto, Hakone, and Hokkaido race corridors all have excellent onsen close to the finish lines.

Running apps: Strava is used widely in Japan. Runnet (runnet.jp) is the Japanese-language platform for race registration and running community, but requires some Japanese navigation. Most race entries open via lottery through official race websites.