21st Shonan International Marathon: Domestic Full Marathon Entries Closed in Just 20 Days
Entries for the domestic full marathon category of the 21st Shonan International Marathon, scheduled for December 6, 2026, closed in just 20 days, with the 10km Fun Run also reaching its capacity early. This demonstrates high interest in the event, and some international categories are still accepting registrations.
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- 📰 Published: April 28, 2026 at 01:13
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— With gratitude to all who support the runners, the region, and the event —
Registration for the 21st Shonan International Marathon (held on December 6, 2026) began on April 4, 2026. The domestic full marathon category closed registration in just 20 days from its opening.
Additionally, the 10km Fun Run (general category) also reached its deadline on April 8, reflecting the high interest and anticipation for this event.
The organizers sincerely thank everyone who applied.
Currently, some categories, such as the full marathon (for international residents) and the 2km Fun Run, are still accepting entries, but all are nearing their deadlines.
Shonan International Marathon Official Website
This event has been held repeatedly on the beautiful coastline of Shonan, supported by runners, volunteers, local communities, and many other stakeholders.
We interpret the early closure of the domestic full marathon entries this time as a testament to the trust built through previous events, as well as the inherent appeal of the Shonan region itself, which resonates with many people.
Once again, we extend our deepest gratitude not only to the runners who entered but also to the volunteers who support the event, the local residents, and all those involved in the marathon.
The Shonan International Marathon has adopted “Take Action, Be Better” as its slogan and has promoted environmentally conscious event management.
Moving forward, we aim to create an event that coexists with Shonan's natural environment and makes it a special day for all participants.
We sincerely look forward to welcoming everyone to the Shonan coast on the day of the event.
Please note that there is a possibility of offering a small number of additional entries only if cancellations occur due to unpaid fees or other reasons.
Should additional entries be decided, we will announce it on the event website and other channels.
However, please understand that the implementation of additional entries is not guaranteed in advance.
About the Shonan International Marathon
Set against the backdrop of the Shonan coast with views of the sea and Mt. Fuji, it is one of Japan's leading citizen marathons, attracting approximately 26,000 participants.
The event venue is Oiso Prince Hotel. The course runs along the Seisho Bypass overlooking the Pacific Ocean, then along National Route 134, which symbolizes Shonan, towards Enoshima. The flat course along the Shonan coastline is suitable for a wide range of runners, from beginners to those aiming for personal bests.
One of its distinctive features is its environmentally friendly initiatives, such as the introduction of a 'My Bottle Marathon,' which avoids the use of disposable cups and plastic bottles at water stations.
Many people are involved in creating the event, including runners, local communities, volunteers, and sponsoring companies.
■ Event Overview
Event Name: The 21st Shonan International Marathon
Date: Sunday, December 6, 2026
Venue: Oiso Prince Hotel (Oiso Town, Kanagawa Prefecture)
Organizer: Shonan International Marathon Executive Committee
Official Website: https://www.shonan-kokusai.jp/
≪Runners’ Wellness≫
Runners' Wellness plans and operates various marathon events throughout the year, such as the 'Shonan International Marathon,' 'Yokohama Marathon,' and 'Challenge Fuji Five Lakes Ultramarathon.' It also serves as the Japan branch of the International Spartathlon Association. Additionally, it handles production coordination for TV programs such as '24-Hour Television Marathon Project,' PR cooperation for companies, products, and athletes related to sports and entertainment, and operates health clinics based on the philosophy of 'wellness.'
Official Website: https://www.r-wellness.com/
Registration for the 21st Shonan International Marathon (held on December 6, 2026) began on April 4, 2026. The domestic full marathon category closed registration in just 20 days from its opening.
Additionally, the 10km Fun Run (general category) also reached its deadline on April 8, reflecting the high interest and anticipation for this event.
The organizers sincerely thank everyone who applied.
Currently, some categories, such as the full marathon (for international residents) and the 2km Fun Run, are still accepting entries, but all are nearing their deadlines.
Shonan International Marathon Official Website
This event has been held repeatedly on the beautiful coastline of Shonan, supported by runners, volunteers, local communities, and many other stakeholders.
We interpret the early closure of the domestic full marathon entries this time as a testament to the trust built through previous events, as well as the inherent appeal of the Shonan region itself, which resonates with many people.
Once again, we extend our deepest gratitude not only to the runners who entered but also to the volunteers who support the event, the local residents, and all those involved in the marathon.
The Shonan International Marathon has adopted “Take Action, Be Better” as its slogan and has promoted environmentally conscious event management.
Moving forward, we aim to create an event that coexists with Shonan's natural environment and makes it a special day for all participants.
We sincerely look forward to welcoming everyone to the Shonan coast on the day of the event.
Please note that there is a possibility of offering a small number of additional entries only if cancellations occur due to unpaid fees or other reasons.
Should additional entries be decided, we will announce it on the event website and other channels.
However, please understand that the implementation of additional entries is not guaranteed in advance.
About the Shonan International Marathon
Set against the backdrop of the Shonan coast with views of the sea and Mt. Fuji, it is one of Japan's leading citizen marathons, attracting approximately 26,000 participants.
The event venue is Oiso Prince Hotel. The course runs along the Seisho Bypass overlooking the Pacific Ocean, then along National Route 134, which symbolizes Shonan, towards Enoshima. The flat course along the Shonan coastline is suitable for a wide range of runners, from beginners to those aiming for personal bests.
One of its distinctive features is its environmentally friendly initiatives, such as the introduction of a 'My Bottle Marathon,' which avoids the use of disposable cups and plastic bottles at water stations.
Many people are involved in creating the event, including runners, local communities, volunteers, and sponsoring companies.
■ Event Overview
Event Name: The 21st Shonan International Marathon
Date: Sunday, December 6, 2026
Venue: Oiso Prince Hotel (Oiso Town, Kanagawa Prefecture)
Organizer: Shonan International Marathon Executive Committee
Official Website: https://www.shonan-kokusai.jp/
≪Runners’ Wellness≫
Runners' Wellness plans and operates various marathon events throughout the year, such as the 'Shonan International Marathon,' 'Yokohama Marathon,' and 'Challenge Fuji Five Lakes Ultramarathon.' It also serves as the Japan branch of the International Spartathlon Association. Additionally, it handles production coordination for TV programs such as '24-Hour Television Marathon Project,' PR cooperation for companies, products, and athletes related to sports and entertainment, and operates health clinics based on the philosophy of 'wellness.'
Official Website: https://www.r-wellness.com/