PACERTRIP CITY EDITIONJP / RACE GUIDE
21st Shonan International Marathon race photo

21st Shonan International Marathon

The city you want to run becomes your next trip.

21st Shonan International Marathon race photo
21st Shonan International Marathon race photo
Oiso
JP
走るTV · YouTubeSyced · CC0Nesnad · CC BY 4.0
Race date in 60 days
Dec 6, 2026 Sun
City · Distance
Oiso · 42.195km · 10km · 2km +1 more events
Entry fee
¥8,500From the 2025 edition
2026Date Dec 6, 2026 · Entry Apr 4, 2026 ~ Jun 6, 2026
2025Date Dec 7, 2025 · Entry Apr 5, 2025 ~ Sep 21, 2025
Why you dream of this race

THE DREAM

About 21st Shonan International Marathon — what makes it special

ABOUT THE RACE

A day you'll remember,
long past the finish line.

The 21st competition will be held at the Oiso Prince Hotel on Sunday, December 6, 2026.

The event is hosted by the Shonan International Marathon Executive Committee,

and Oiso-machi, Hiratsuka-shi, Chigasaki-shi, Fujisawa-shi, Ninomiya-machi, etc. participate.

The events are full marathon (capacity 19,500, participation fee 16,500 yen, overseas 21,500 yen),

Fun Run 10km (4,800 general students 8,500 yen/200 high school students 5,500 yen),

Fun Run 2km (junior high students, upper elementary students, and parent-child pairs in the Family Run),

Run & Walk 1.4km (100 people), and overseas residents can only apply for full marathon.

The road to your own record

Picture the course in advance
and find the pace that fits you.

When the city cheers

Streets lined with cheers, runners all around.
You'll be part of that scene.

The trip that follows the run

Take it slow with the finish still in you,
and meet the city all over again.

21st Shonan International Marathon runner reviews and race reports

Stories from those who ran it first.

From the joy of finishing to the tough moments — read what runners wrote themselves.

Race reports: 7
椅子屋Ran in 2025 · Finish time 3:48:59
“I took part in the Shonan International Marathon 2025 as my first full marathon and achieved a sub-4 finish with a net time of 3 hours 48 minutes 59 seconds!”

The runner took part in the Shonan International Marathon 2025 as their first full marathon and finished in a net time of 3 hours 48 minutes 59 seconds. The runner describes the preparation and race experience from a participant's perspective, including personal-bottle aid stations, congestion early in the race, toilet queues, and the gradual climb in the latter stages.

Quoted from the original · translated

Original quote

私は今回、初めてのフルマラソンとして湘南国際マラソン2025に参加し、3時間48分59秒(ネットタイム)でサブ4達成をしました!

Read the original on isuya0118.com
ginbearRan in 2025 · Finish time 3:51:22 gross / 3:44:48 net
“Although I suffered leg cramps, this pace was the first race where I felt I could just about keep running to the finish.”

In the second Shonan full marathon, the runner set a personal best with a net time of 3:44:48 and a gun time of 3:51:22. The runner struggled with the toilet queue and taking on fluids and fuel. After suffering cramps in the legs after 35km, the runner stretched, adjusted the pace, and finished the race.

Quoted from the original · translated

Original quote

足攣りを発生させてしまったものの、「このペースならギリギリ走り切れる」という感覚を持てたのは新体験でした。

Read the original on note.com
ShibuyaRyuichiRan in 2025
“It felt as though my legs had completely stopped on the uphill section around 37km.”

ShibuyaRyuichi set a personal best at the Shonan International Marathon, but dealt with congestion at the start, a pacer group bottleneck between 25 and 30K, and declining muscular endurance after 30K. His legs felt like they'd stopped on the 37K climb, but he kept pushing his pace to the finish.

Quoted from the original · translated

Original quote

37km辺りの上り坂で、完全に脚が止まった感覚がありました。

Read the original on ど真ん中を生きる
isuya0118.comRan in 2025 · Finish time 3:48:59
“Running toward Mount Fuji in particular is what makes this race unique.”

A first-time Shonan full marathon participant records the shuttle transfer, bathroom queues, aid stations using personal bottles, and a race in which they increased their pace in the latter stages.

Quoted from the original · translated

Original quote

特に「富士山に向かって走る」という体験は、この大会ならでは。

Read the original on isuya0118.com
goodenoughRan in 2025
“This course has more uphill sections on the return.”

goodenough ran at a relaxed pace with a friend, enjoying the coastal scenery and local snacks. They found the gentle uphill on the return leg and the bypass in the later stages tough on tired legs.

Quoted from the original · translated

Original quote

このコースは帰りのほうが登り気味。

Read the original on Ameba Blog
がりばあRan in 2024 · Finish time 4:28:58
“I enjoyed running along the coast beneath clear skies, encouraged by the warm support from people along the route.”

The runner enjoyed the cheering and views of Mount Fuji while running the coastal full marathon from Oiso toward Enoshima. The runner alternated between running and walking in the second half and walked briefly on the final climb, but then ran to the finish line to finish in 4:28:58, achieving the goal of finishing within 4 hours 30 minutes.

Quoted from the original · translated

Original quote

沿道からの暖かい応援を受けながら、青空の海岸線を気持ちよく走ります。

Read the original on note
えだ旅Ran in 2023 · Finish time 4:52:53
“The headwind also made the distance feel longer than expected.”

The couple were worried about the early cutoff because of starting in the last block and waiting for the toilets, but they finished while enjoying plenty of drinks and snacks. The headwind along the coast in the latter part and the steep incline just before the finish were challenging, but they achieved their first sub-5 finish with a net time of 4 hours 52 minutes 53 seconds.

Quoted from the original · translated

Original quote

向かい風の影響もあり 思った以上に距離がありました。

Read the original on えだ旅 WORLD JOURNEY

We translated a short line from each public race report and summarized the experience. Finish times are as stated by the author, and past editions may differ from this year's weather and operations.

See it on video,
feel it through their stories.

Preview the course and read what runners who went before you wrote.

2022 Course preview

走るTV · Course preview

View on YouTube

This may be from a past edition. Check the organizer for this year's course and operations.

The way in that fits you

YOUR ENTRY

How to enter 21st Shonan International Marathon — registration routes

How to reach the start line —
start with what fits you.

Here are the ways to enter and what each requires.
Check the organizer's page for whether entries are open.

From the 2025 edition
Registration history

The 2026 race opened entry on Sat, April 4, 2026

About 2k-family · walk-1.4k

Registration platform RUNNET

Official race websiteEntry options
From the start line to the finish

RACE WEEK

21st Shonan International Marathon course map and elevation

The 42.195km I'll run

Know the course and time limit, and race day comes into focus.

From the 2025 edition
Runners start · local timeFrom 09:00
Time limit6 hours 30 minutes
Show more

6 hours 30 minutes / 2 hours / 30 minutes / 40 minutes

Full marathon 16,500 yen Fun Run 10km (general) 8,500 yen Fun Run 10km (high school student) 5,500 yen Fun Run 2km (junior high school student / upper elementary school student) 1,000 yen Fun Run 2km (family run parent and child) 2,000 yen Run & Walk 1.4 km 1,000 yen full marathon (Training frame) 55,000 yen (breakdown: participation fee 16,500 yen, training fee 38,500 yen)

City center · not the start line

We have not confirmed the start line coordinates yet. The map shows the host city.

START

Near Seisho Bypass Oiso Nishi IC, Run & Walk near Fujisawa City Nishihama Pedestrian Bridge Intersection

FINISH

Run & Walk is in the Oiso Prince Hotel parking lot, near the Fujisawa City Nishihama Pedestrian Bridge intersection

Cut-off
2026 Shonan International Marathon full marathon cut-off point has 9 locations: approximately 5.1km 10:10, 10.8km 10:56, 14.2km 11:24, 19.2km 12:03, 21.9km 12:25, 28.3km 13:17, 35.0km 14:13, 37.1km 14:29, 39.6km 14:55, and the finish is 15:30 (time limit 6 hours and 30 minutes).

Original course map · shonan-kokusai.jp
Show more

Runners start · local time — (full marathon) / 09:50(Fun Run 10km (general)) / 09:50(Fun Run 10km (high school students)) / 10:50(Fun Run 2km (junior high school students)) / 10:55(Fun Run 2km (elementary school upper grades)) / 11:00(Fun Run 2km (Family run parent and child)) / 09:00(Run & Walk 1.4km)

The venue is the Oiso Prince Hotel and runs along the Seisho Bypass and coastal roads along the coast of Sagami Bay.

Full marathon starts from the Seisho Bypass Oisonishi IC, passes through Karagahara - Hiratsuka Coast - Yanagishima - Chigasaki Coast,

makes a first return near the entrance to Enoshima, returns the same way,

makes a second return at Seishoninomiya IC, and then finishes at the Oiso Prince Hotel.

Departure is at 9 o'clock, time limit is 6 hours and 30 minutes, and there are distance marks every 1 km.

Cut-off point is 9 locations,

approximately 5.1km Hiratsuka Hachiken-dori entrance intersection 10:10, approximately 10.8km Chigasaki Park 10:56, approximately 14.2km In front of Tsujido Beach Park West Parking Lot 11:24, approximately 19.2km Chubu Bus Parking Lot 12:03, approximately 21.9km Tsujido Beach Park East Parking Lot Tunnel First 12:25, about 28.3km Sagami River Basin Sewage Treatment Plant on the left bank 13:17, about 35.0km Oiso Port IC 14:13, about 37.1km Oisonishi IC 14:29, about 39.6km Seishoninomiya IC 14:55, finish at 15:30.

A sweep bus for runners who drop out follows at the back of the field;

if it catches you, you're disqualified even before the cutoff time.

Water supply is installed at intervals of about 200m in a section from about 5km to about 40km,

and food stations are set up at six locations: Chigasaki Park,

Tsujido Beach Park West Parking Lot, Chubu Bus Parking Lot, Hamasuga,

Sagami River Basin Sewage Treatment Plant on the left bank, and Karagahara.

There are 12 relief stations, and toilets are built around cut-off point and above course.

Fun Run 10km starts at Oisonishi IC and returns at Nijigahama Intersection with course,

departure at 9:50, time limit 2 hours, and water supply is installed every 200m from about 4.5km to about 9.5km.

The 2km Fun Run turns around about 500m from Oisonishi IC toward Hiratsuka, with a 30-minute time limit.

The 1.4km Run & Walk goes from the Fujisawa Nishihama overpass and turns around at the Enoshima entrance intersection, with a 40-minute time limit.

Field size
Full marathon 19,500 people (overseas, including training) Fun Run 10km 5,000 people (4,800 general public, 200 high school students) Fun Run 2km 1,000 groups (200 junior high school students, 400 upper elementary school students, 400 parents and children 800 people) Run & Walk 1.4km 100 people
Typical race-season temperature: around 5°C (41°F)
Long sleeves + a throwaway layer for the start

Participant benefits

Timing chip

Marathon

Medical support

Marathon

Restrooms

Marathon

Water stations

Marathon

Finisher medal

Marathon

Event T-shirt

Marathon

Bag drop

Marathon

Where and when to collect your 21st Shonan International Marathon race bib

To the start line,
step by step.

Pick up your bib, check your wave.
So on race morning, you can just run.

From the 2025 edition

Pick up your bib at the expo

It is a completely pre-shipment system with no prior runner registration — bib, measurement tags, baggage stickers, etc.
will be mailed to the registered address around early November, so be sure to bring them with you on the day of the race.
Measurement tags will be returned in the enclosed envelope after the competition.

Stations & transport near the venue

Getting to the start

JR Tōkaidō Line: Ninomiya Station or Ōiso Station (free shuttle bus from both to venue)

Start is at Nishi-Shonan Bypass Ōiso-nishi IC.

Nearest JR stations are Ninomiya and Ōiso on the JR Tōkaidō Line;

free shuttle buses run from both stations to the venue on race day.

21st edition.

Date confirmed Dec 6, 2026.

Getting to the finish

Ōiso Prince Hotel (finish venue); same Ninomiya/Ōiso Station shuttle applies

Finish is at Ōiso Prince Hotel, accessible via the same free shuttle bus service from Ninomiya/Ōiso JR stations.

More details

Free shuttle buses from both Ninomiya and Ōiso JR stations to the venue on race day;

additionally, direct paid buses run from various points in Kanagawa Prefecture and greater Tokyo.

READY TO RUN

From race morning to after the finish.

Your start time, fuel and bag drop.
Know them ahead and the run feels easier.

This competition is the “Environment-Conscious My Cup/My Bottle Marathon,” which is the first in the world to achieve zero discharge of disposable cups and plastic bottles as mentioned above.

Water is only received through own bottles and cups.

Full marathon Participants must depart with a My Bottle containing at least 200ml of water,

and since special drinks and other beverages will be provided, it is strongly recommended that they also bring a My Cup.

Fun Run For 10km, it is essential to carry My Cup and My Bottle is also recommended.

Fun Run There are no water points during the race for 2km and Run & Walk 1.4km, but My Cup is required to water after the finish.

As the number of lost bottles and cups is increasing, we advise people to write down the number bib or put a mark on it.

On the course, 200 water points are set up every 200m, and about 40 tons of water are prepared.

Placings and times are recorded with timing tags, and if the tag is not installed correctly or is forgotten,

no record will be left and you will be disqualified.

The participation prize will be an original THE NORTH FACE competition t-shirt that will be sent in advance.

As an option, there is the Runner Support Plan (1,000 yen), which guarantees a refund if the race is canceled,

and the Clean Start Plan (2,200 yen including the special bag),

where you can leave the outerwear you were wearing before departure in a special bag and retrieve it at course and return it after the finish.

The nearest stations to the venue are Ninomiya Station and Oiso Station on the JR Tokaido Line,

and free shuttle buses will run from both stations all day on the day of the competition.

At both stations, the areas around the platforms and ticket gates are very narrow, so congestion is expected, so please allow plenty of time.

Since there are few payment machines, we advise you to charge a round-trip ticket in advance to a transportation IC card such as Suica or Pasmo.

There is no Midori-no-Madoguchi at Oiso Station, and the Ninomiya Station counter is very crowded, so you need to purchase a reserved seat ticket in advance.

There are no parking lots inside or outside the venue, the Oiso Prince Hotel site is only available to hotel guests,

and we advise you to refrain from providing shuttles to the venue as this will cause congestion.

If it is confirmed that you have used a vehicle in violation of this, you may not be allowed to start on race day.

Direct buses to the venue are sold from various parts of Kanagawa Prefecture and major cities in the metropolitan area,

and reception opens at 12:00 on Monday, June 1, 2026.

If you come by bicycle, use the designated bicycle parking, but space is limited.

Times are local to Oiso. Check the latest official information before the race.

A trip built around the race

STAY A LITTLE

MAKE IT A RUNTRIP

The race is one day,
the trip can be longer.

From a hotel that makes race morning easy,
to the meals and views you'll enjoy with the medal on.

PISOLA - Ōiso Store
PISOLA - Ōiso Store
Komayama Park (Shonandaira)
Komayama Park (Shonandaira)

Hotels near the 21st Shonan International Marathon start line in Oiso

Hotels that make race morning easy

2 places

Distances are straight-line from the start.
Check real travel times and booking terms with each hotel.

Swipe sideways to see more hotels.

View on map →

Time for you, before and after the finish

56 experiences

Rest a little, wander a little.
Pick what suits you and whoever you're with.

Manten no Yu Japanese Style Hot Spring Experience in Yokohama

¥2,674

View on Klook

My Space Yokohama Lymphatic Massage Facial Care

¥11,267

View on Klook

Yokohama Authentic Taiwanese Massage Choshien

¥11,390

View on Klook

Yokohama Aroma Therapy Total Relaxation Salon Yu Life

¥29,332

View on Klook

Yokohama Noge Alley Private Bar-Hopping Tour

¥26,370

View on Klook

Tokyo Mount Fuji 5th Station & Hakone Cruise Bus Tour (Shinkansen Return Option)

¥16,272

View on Klook

Tokyo Mount Fuji & Lake Kawaguchi Sunset Tour

¥11,344

View on Klook

Michelin-Starred Ramen Tasting at Tsutaya in Shibuya

¥14,500

View on Klook

Yokohama Yakiniku Restaurant Ushigoro Kanagawa Yokohama Sogo Branch

¥16,252

View on Klook

Private Yokohama Day Tour (Tea Ceremony Experience)

¥83,595

View on Klook

Shin-Yokohama Kogao Sleep Beauty Salon with Lilina

¥39,221

View on Klook

Tokyo Vegan Gyoza & Ramen Cooking Class (3 Hours)

¥13,513

View on Klook

Atami Fireworks Festival Day Tour: Choose from Hakone, Mount Omuro or Kamakura Routes (Hotel Pickup/Drop-Off Available)

¥13,075

View on Klook

【Fireworks Event Only | Hotel Pickup/Drop-Off Included】 Atami Fireworks Festival + Izu Mount Omuro or Hakone Lake Ashi Day Tour | Departing from Tokyo

¥12,708

View on Klook

Mt. Fuji 6-Scenic-Spot Popular Photo Spot 1-Day Tour for Small Groups of 9 (Hotel Pickup/Drop-off Optional)

¥12,708

View on Klook

Mount Fuji 9-Person Small-Group Day Tour (Departing from Tokyo, Chauffeur-Guide Service, Optional Hotel Pickup/Drop-Off)

¥13,075

View on Klook

Day Tour by Chartered Car with Driver from Narita/Haneda/Yokohama: Mt Fuji, Nikko, Karuizawa, Kamakura, Hakone & Outlet Shopping

¥59,948

View on Klook

Haneda Airport – Narita Airport Limousine Bus

¥1,827

View on Klook

Tokyo International (Haneda) Airport Lounge Service by POWER LOUNGE

¥3,103

View on Klook

Mystery of Tutankhamen An Immersive Ancient Egyptian Exhibition in Yokohama

¥2,674

View on Klook

Sail Training Ship NIPPON MARU & Yokohama Port Museum Admission in Yokohama

¥367

View on Klook

Yokohama Kaiun Aquarium Fortune Aquarium Admission Ticket Yokohama

¥612

View on Klook

Mount Fuji & Hakone Day Tour from Tokyo - Including Ropeway Experience - Lake Yamanaka Swans, Oshino Hakkai Scenic Views, Torii Gate Reflection & Owakudani Volcano

¥10,203

View on Klook

Mount Fuji Yamanakako Cycling Tour/Cruise・Oshino Hakkai・Lake Kawaguchiko Oishi Park/Maple Corridor・Arakurayama Sengen Park/Amaterasu Village Day Tour|From Tokyo|Small Group of 4–9 People

¥12,077

View on Klook

Mount Fuji Lake Yamanaka Cycling & Lake Kawaguchi & Arakurayama Sengen Park & Nikkawa Clock Shop Day Trip

¥14,541

View on Klook

Tokyo Mount Fuji & Lake Yamanaka Small-Group Tour (Including Cycling)

¥12,708

View on Klook

【Mount Fuji Family Day Trip】Fuji Safari Park, Lake Yamanaka Mount Fuji Views & Oshino Hakkai (Chinese/English Tour Escort · Departing from Tokyo/Shinjuku)

¥7,943

View on Klook

Kamakura & Yokohama Private Full-Day Guided Tour

¥90,057

View on Klook

Yokohama Relaxation Salon Dongyuan Beauty Yokohama

¥13,063

View on Klook

Yokohama City Walking Tour with an Expert Local Guide

¥55,822

View on Klook

8-Hour Private Walking Tour of Tokyo from Yokohama (Licensed Guide Included)

¥78,442

View on Klook

Yokohama City Highlights Half-Day Custom Walking Tour

¥28,919

View on Klook

Yokohama Chinatown, Temple & Bayside Red Brick Warehouse WalkingTour

¥5,103

View on Klook

Tokyo An Unique Temple Walking Tour for Cat Lovers

¥7,471

View on Klook

Life Journey Nippon Multiple Tours to Fully Enjoy Tokyo Or Yokohama

¥5,634

View on Klook

Tokyo City Customizable Private Half Day Walking Tour

¥38,047

View on Klook

Where runners eat in Oiso

Eating well is part of the trip

7 places

A meal before the race, a dinner to celebrate the finish.

PISOLA - Ōiso Store

Italian Restaurant · 大磯町他 2.4km

★4.5(1779)
Map

Meshiya Oisokō

Seafood Restaurant · 大磯町他 587m

★4.1(972)
Map

Hanamizu Laoshan main store

Ramen Restaurant · 大磯町他 2.7km

★4.2(1601)
Map

mom kitchen

Chinese Restaurant · 大磯町他 2.8km

★4.3(647)
Map

Thank you

Japanese Restaurant · 大磯町他 3.3km

★4.1(495)
Map

Marugen Ramen

Ramen Restaurant · 大磯町他 2.3km

★3.9(1269)
Map

Sushiro Hiratsuka Store

Sushi Restaurant · 大磯町他 2.6km

★3.6(1402)
Map

What to see in Oiso after the race

Seeing Oiso with the medal on

7 places

The city you ran — this time, a little slower.

Komayama Park (Shonandaira)

Park · 大磯町他 1.4km

★4.3(4294)
Map

Samukawa Shrine

Shinto Shrine · 大磯町他 10.4km

★4.5(15,000)
Map

Enoshima Aquarium

Aquarium · 大磯町他 15.3km

★4.3(16,000)
Map

Enoshima Sea Candle

Observation Deck · 大磯町他 15.2km

★4.4(8640)
Map

Odawara Castle

Castle · 大磯町他 15.7km

★4.2(22,000)
Map

Kanagawa Public Kana Garden

Farm · 大磯町他 5.7km

★4.1(2009)
Map

Kanagawa Prefectural Museum of Natural History

Museum · 大磯町他 18.8km

★4.3(3592)
Map

Total cost and budget for 21st Shonan International Marathon

TRAVEL ESSENTIALS

Trip prep too,
light and in one place.

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Runner stories and questions about 21st Shonan International Marathon

RUN TOGETHER

With runners who dream of
the same start line.

Be the first runner
Leave this room's first post

Oiso runners' room

Frequently asked questions about 21st Shonan International Marathon

FAQ
How much is the 21st Shonan International Marathon 2026 entry fee?

Not announced yet. The 2025 race entry fee was about ¥8,500.

When does 21st Shonan International Marathon 2026 take place?

It takes place on Sun, December 6, 2026 in Oiso, 神奈川県, Japan.

What is the time limit for 21st Shonan International Marathon 2026?

6 hours 30 minutes / 2 hours / 30 minutes / 40 minutes. (From the 2025 edition)

What distances does 21st Shonan International Marathon 2026 offer?

10K · Marathon. (From the 2025 edition)

What time should I arrive at the 21st Shonan International Marathon 2026 start area?

Reception location: None (number cards will be sent in advance).

(From the 2025 edition)

Where does 21st Shonan International Marathon 2026 start?

Near Seisho Bypass Oiso Nishi IC, Run & Walk near Fujisawa City Nishihama Pedestrian Bridge Intersection.

(From the 2025 edition)

Where does 21st Shonan International Marathon 2026 finish?

Run & Walk is in the Oiso Prince Hotel parking lot, near the Fujisawa City Nishihama Pedestrian Bridge intersection.

(From the 2025 edition)

When does registration for 21st Shonan International Marathon 2026 open?

Registration runs from Sat, April 4, 2026 to Sat, June 6, 2026.

Where can I book a hotel near the 21st Shonan International Marathon 2026 start?

You can compare live prices for hotels around the start in Oiso in the STAY section of this page.

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