TBA 2023

Shima, Mie

Athlete Entitlements

Samurai Sports Advantage

  • Easy registration

    Register in English without creating an account

  • Translated English athlete guide

    Information you need to complete your race safely

  • English email support

    Ask questions - and get answers!

  • Post race follow-up

    Receive links to results, photos

  • On-site Race Packet Collection

    Collect race packet on Friday (international registrants only, incl. FPO/APO/DPO)

Race Standard

  • Age Group awards

  • Event insurance

  • Bag check

  • Race swim cap

  • Finisher towel

  • Downloadable finisher certificate

  • On-course aid stations

  • Timed race results

    View official results online

about the race

Ranked the #1 Olympic Distance triathlon in Japan and the #3 overall triathlon in Japan by Triathlon Lumina magazine, the Ise Shima Satoumi Triathlon is as popular as it is beautiful! 

On race day, athletes have the opportunity to be blessed by a Shinto priest before the swim. The race begins at Oyahama Beach with two laps of 750m with an Australian exit. Contrary to previous years, wetsuits are required; the waters are generally flat in a protected bay area. Following T1, athletes will ride two laps on a challenging 40KM bike course featuring rolling hills and four tunnels. The run consists of two 5KM laps along coastal roads with minimal shade. 

The course is very spectator-friendly and rousing support from the locals will give you the boost to fuel your motivation and finish the race strong! 

・Wetsuits are mandatory
・JTU membership is mandatory

Athletes will receive their race packets via Japan Post – please ensure your registered domestic mailing address is correct. Athletes registering with international addresses (including FPO/APO/DPO) must collect their race packet on Friday (September 23, 2022) 1200-1700.

サムライスポーツは日本国籍以外を対象とした外国人向け専用受付サイトです。日本国籍の方は日本語サイトからお申込みください。日本国籍以外の方がエントリーした場合、無効となる場合があります 。無効となった場合には、返金手数料を差し引き、参加費をご返金させていただきます。

  • 00Days Until Race Day

September 23, 2022 (Friday)
at Hamajima B&G Marine Center
1200-1700 Expo
1400-1700 Help desk opens (Japanese only)
1500-1600 Beginners briefing (Japanese only)

September 24, 2022 (Saturday)
at Oyahama Beach Resort
0700-0800 Help desk opens
Transition area opens
0900-0940 Swim warm up
Timing chips distributed
1000-1010  Race starts (rolling)

1410 Cut Off Time / race ends
1500-1530 Awards

* schedule is tentative; changes may be made without notification

Olympic Distance – Individual
JTU Members ONLY: ¥26,000 (¥28,600 incl. Samurai Sports service charge)

Additional Surcharges
・Prices listed above include Samurai Sports service charge
・If total cost is ¥10,000 or less, you incur a flat fee service charge of ¥1,000.
・If total cost is more than ¥10,001, you incur a service charge amounting to 10% of total cost.
Why does Samurai Sports implement a service charge? They help us cover the cost of operating the registration platform, translation of athlete guides/event information, labor hours required to answer your event inquiries, etc. Depending on the event, the surcharges help to cover the cost of our physical presence at the event. 

Terms of Eligibility
・Olympic – Individual: must be 18 or older

Japan Triathlon Union Membership is mandatory. 
Athletes deemed to have registered without a valid JTU membership ID will have their registrations voided and fees refunded minus ¥2,000 for transaction fees.

Athletic Ability
Must have completed 1500m within 50 min. in an open water swim (OWS) competition or triathlon before. Or, be able to complete 400m within 10 minutes and 1500m within 45 minutes in a pool. Wetsuits are mandatory. 
Must be able to skillfully ride at least 25KPH for over an hour.
Must be able to run for over 1 hour & complete 5KM under 30 minutes.
Generally speaking, you must be in good health and adhere to all rules.

Race Briefing
Will be available online in Japanese only. Athletes who cannot communicate well in Japanese must read the downloadable PDF English athlete guide provided for those registered through Samurai Sports.

Wetsuits: Wetsuits are mandatory; full-length wetsuits are recommended.

Cut-Off Time 

・Swim: 1 hour 
・Bike: 2 hours
・Run: 1 hours 
・Total: 4 hours

・Demonstrate good manners. All participants must be respectful of the natural course environment and do his/her best to preserve it. Be mindful of other athletes on course.
・Be a responsible athlete. Please make sure you have the physical ability to complete the course.

・swim cap (provided)
・running shoes
・proof of health insurance
・water bottle

・nutrition/hydration (as necessary)
・Garmin or similar fitness tracker device
・race belt
・bike shoes
・body glide / Vaseline
・plastic bag(s)
・mobile phone/smartphone (not on the course)
・wetsuit or swimskin

Olympic Distance (MAPS COMING SOON)
Swim 1.5km
Bike 40km
Run 10km

On the Race Course
・It is your responsibility to fully understand the course and race environment. Participants who do not complete the correct number of laps will be disqualified.
・If you stray from the course for any reason, resume from the point that you strayed the course. Running in the opposite direction of the course is prohibited.
It is prohibited to receive assistance other than at official aid stations.
・Follow all traffic rules even during the race.
・Keep left during the bike and run portion. Be cautious of other racers.
・Pay close attention to spectators and pedestrians who are crossing.
・Keep left and slow down when emergency vehicles are present. You may have to stop and yield to emergency vehicles.
・Water stations will be located at the transition area and run course only. NO WATER OR AID ON THE BIKE COURSE. Please plan accordingly.

Attire & Gear
・All athletes must wear swim caps that are provided (unless you are a relay team member not swimming)
The use of wetsuits are encouraged, but not mandatory. The water temperature is predicted to be 71.6-75.2℉ (22-24℃).
・Must wear proper attire (both top and bottom) during the bike and run portion.
・You cannot unzip your top past your sternum. 
・Make sure your bike is serviced before the race. There will only be basic tuning at the mechanical service the day before and day of the event.
・Helmets are required while riding on bicycles at all times, even during warm ups.
・Take off any items on your bicycle that are unnecessary during the race, such as fenders, stands, and covers (lights and reflectors are permitted) #aeroiseverything.
・Proper body number marking – mark both arms with the 2 tattoo stickers. If your arms are covered, then mark both thighs. If you are fully covered, please consult with a race/JTU official.
・Helmet stickers – place on the front (total: 1). Bike stickers – place on the left seat post (total: 1)
・We recommend the usage of a race belt for your bib. Your bib should be displayed on your back during the bike portion and displayed on the front during the run portion.
・Taking pictures, listening to music, and using earphones/headphones are prohibited during the race for safety reasons.

Timing Chip (ankle)
・You will receive your ankle timing chip in the morning of your race nearby the swim venue. You will be disqualified if the timing chip is not worn at all times during all events. No exceptions.
・The timing chip can be worn on the right or left ankle. The timing chip relies primarily on Velcro, but you will receive a rubber band to doubly secure and fasten the timing chip. Relay teams will receive 1 sash per team.
You must return the timing chip at the end of the race. You will be charged ¥10,000 if not returned.

About the Swim Leg
・The swim portion consists of 2 laps of 750m. There will be a 3-minute gap between each wave.
・You must finish the first lap within 30 minutes and 1500m within 1 hour.
・The race official or lifeguard will ask you to withdraw if they feel you cannot safely continue.
・There will be a water station on the sandy area when you come out of the water after your first and second lap.
・Resting for a short period by hanging onto a buoy or boat is permitted.
・In an emergency, swim away from the course and float on your back to catch your breath.
・To be rescued, wave both hands in the air and call for help.

Swim Check
・The purpose of the swim check it to ensure swim safety. Wear your ankle timing chip and make sure it works.
You cannot leave the swim area once you finish the swim check. If you must leave the area, i.e. bathroom or you forgot something, let one of the volunteers know – do not leave the area on your own.

Skipping the Swim
・You may skip the swim portion if you are feeling unwell on the day of the race. Indicate it on the health checklist and your swim result will show as DNF (SKIP). You will start at the bike start line.
・You cannot skip the swim portion if you have already started the race. You will be disqualified if you opt to skip the swim after the race starts, during the swim.

Transition Area
・Only athletes are allowed in the transition area, spectators must remain outside. Riding your bicycle inside the transition area is prohibited.
・Place everything you need during the bike and run portions in your transition area. T1 and T2 are the same.
・Place your bikes with the handle in the front of the rack and hang your bike on the rack from the saddle (not the handlebars).
・Place everything you don’t need after the swim and leave it in your transition area (i.e. swim cap, goggles, wetsuit, etc.). There will be a penalty for dropped items on the course.
・Wear your helmet before taking your bike off the rack. Take your helmet off after you hang your bike on the rack.
・You may get on your bike after your front wheel crosses the mount line and get off your bike at the dismount line. There will be lines clearly demarcated on the ground and JTU officials will be onsite to assist participants.

About the Bike Portion
・The bike portion consists of 2 laps of 20km (total 40km).
・You must have at least 1 water bottle on your bicycle. Do not use disposable plastic bottles.
・Keep left and do not ride side by side, unless when passing.
・You will ride through 4 tunnels per lap. We recommend wearing sunglasses that are transparent.
NO DRAFTING. Riding within 10m of each other will be considered drafting and you will be penalized.
・If passing another cyclist, you must pass within 20 seconds or it will be considered drafting. Make sure you signal by calling out loud and pass on the ride side. It is prohibited to pass on a turn or corner.
・After passing, keep left until you gain enough distance with the cyclist behind you. The cyclist who is passed should ALSO SLOW DOWN to allow the passing cyclist to gain 10 meters of space.

About the Run Portion
・The run portion consists of 2 laps of 5KM (total of 10KM).
・Pass from the right side after letting the runner know – don’t be a jerk.
・You will be photographed at the finish line. Take off your sunglasses and hat to identify yourself. Smile!
・You may cross the finish line with family, friends, and/or relay team members. There will be a dedicated space for them to standby near the finish line. 
・After crossing the finish line, a volunteer will give you a race towel and take off your ankle timing chip.

Cut Off Time, Race Result, and Finisher’s Certificate
・There IS a cut off time for each leg – you should be aware of what these cut off times are.
・There will be a tent for results at the race. However, the timing management tent will be VERY busy and unable to attend to individual queries. Unofficial results for the top finishers will be posted at the race site for awards purposes; however; official results will only be posted on the official race site 24-48 hours AFTER the race.
・Finisher’s certificates will be available to download after the race.

・There will be a separate holding area for relay teams near the swim and bike transition area.
・All members must wait in the relay holding area until their turn.
・Take the ankle timing chip from the previous member and make sure to secure the timing chip onto the next relay member’s ankle (either one).

Olympic Distance (Standard)

Swim 1.5KM / .9 miles
2x 750m
at Oyahama Beach

Bike about 40KM / about 24.8 miles
2x 20KM
・4 tunnels per lap
・No aid stations
・About 367m (1,204ft) of climbing
・Transition area: Oyahama Beach

Run 10KM / 6.2 miles
3x 3.3KM
・Three laps
・Three aid stations per lap
・You will be photographed at the finish line. Take off your sunglasses and hat to identify yourself. Smile!
・Transition area: Oyahama Beach

Elevation Profile
・View bike course elevation
・View run course elevation

Oyahama Beach (start/finish)
Hamajimacho Hamajima, Shima, Mie 517-0404
Google Maps

Hamajima B & G Marine Center (Friday expo & race packet collection site for international registrants)
3564-4 Hamajimacho, Hamajima, Shima, Mie 517-0404
Google Maps

Ugata Station (closest station)
Google Maps

By Train
From Shinagawa take the Tokaido Sanyo Shinkansen to Nagoya station. Transfer to the Kintetsu Nagoya Station and take the Kintetsu Limited Express to Ugata station. From Ugata station, take bus 70 bound for Shukuura to the Hamajima bus stop and walk (about 350 meters or 4 min.) to Oyahama Beach. Alternatively, from Ugata station, take a taxi to Oyahama Beach (about 12KM or 20 minutes) to Oyahama Beach.

By Car
From Nagoya, about 2 hours
From Osaka, about 2 hours, 45 minutes
From Tokyo, about 6 hours

・Multiple parking lots will be available for athletes and supporters.

Hamajima Elementary School
Google Maps

Hamajima B&G Coast Center (rear lot)
Google Maps

Olympic Distance Individual Awards
Top 6 Overall Male/Female
Top 3 Age Group Male/Female
18-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60-64, 65-69, 70+
(Age group awards exclude overall winners)

Olympic Distance Relay Awards
Top 3

2019 OD Individual results…click here
2019 OD Relay results…click here


In short, you must follow all Japan Triathlon Union (JTU) regulations, as well as local rules. All participants must take note of the following rules:
・Understand the rules, schedule, and course details before participating.
・Only those who are registered can participate in the race. Entry fees cannot be transferred.
・Refrain from drinking alcohol, get enough sleep and nutrients, and drink plenty of water before the race.
・Withdraw from the race at any time if you are feeling unwell. Have the courage to quit before you hurt yourself.
・There will be no refunds if the event is cancelled or shortened due to unforeseen weather.
・Announcements will be made by 7:00 AM on the day of the race. Reasons for shortening, altering, or cancelling the event include: (a) if the sea water temperature is under 64.4°F (18°C); (b) if the wind velocity is over 10m or waves are over 2m high; (c) if the rain or fog significantly impairs the vision (range of visibility is below 500m); (d) during natural disasters, such as a typhoon or earthquake; (e ) when the event organizers and officials otherwise decide the condition is unsafe and dangerous.
If the swim portion is cancelled, the race will become a Duathlon (2KM run, 40KM bike, 10KM run). If the swim and bike portions are cancelled, the race will become a 10KM run.

・Anyone who violates race rules or shows unsportsmanlike conduct will receive a first verbal warning.
・If you continue to violate race rules or show unsportsmanlike conduct, you will receive a second time penalty. When you receive a time penalty, you must wait 1 minute per penalty inside the transition penalty area. You will be automatically disqualified If you do not wait in the penalty area.
・You will be disqualified if you receive 3 penalties.
・You will be automatically disqualified if you cause an accident due to unsportsmanlike conduct.

Dropping Out / DNF / Withdrawing
・If you drop out during the race for any reason, be sure to tell course marshals or aid station staff member your name and bib number. You may also be asked to return the ankle timing chip.
・If you are unable to so at the time, please inform race headquarters as soon as possible and return your timing chip.
・At no point should you run in the opposite direction of the race.
・Be aware of your surroundings and notify an official or volunteer if someone looks unwell or unfit to race.
・Emergency vehicles will be available on the course. Let an official or volunteer know if you need help.
・When an ambulance is present, slow down and keep left in single file.

・Follow Japan Triathlon Union (JTU)’s competition rules.
・Bicycles must be road, TT, or tri bicycles and helmets must be worn at all times.
・Water stations will be located at the transition area and run course only. NO WATER OR AID ON THE BIKE COURSE. Please plan accordingly.
・ Please ensure you have lodging and transportation plans figured out BEFORE registering for this event.

・ No refunds, deferrals, or credits will be issued. This applies to incidents in which the event is cancelled for any reason including personal participant circumstances of the participant (including illness and injury) and incidents in which the event is cancelled due to unforeseen weather conditions or natural disasters.
・Depending on the event, transfers and certain modifications to your entry may be permitted. Generally, entries may be transferable and/or permit modifications until 3-5 days before the last day of registration. After this period, all transfers are considered illegal and modifications will not be accommodated.
・You will not sue the event organizers nor its affiliates (including Samurai Sports) for any injury or death caused during the event.
・ You consent to and will give all authorities and copyright to the event organizer and affiliates for the use of photography, motion pictures, articles, recordings or any other record of this event (including personal information such as name, age, gender, personal record, portrait, and etc.) for legitimate purposes and use in newspapers, TV, magazines, internet and any media publishing such as Facebook posts, Instagram posts, and pamphlets.

Participants determined to be violating the policies below may be disqualified without a refund:
・Any person found to be bib-swapping (illegal transfer of bib); the person will be held responsible in case of an accident arising from or provoked by the other person during the event.
・Any person found to be registering with inaccurate information, i.e. false declarations of the participants name, age, or gender.

・ Those participating and coming from abroad must be enrolled in medical and/or travel insurance in case of accident, injury, and medical emergencies.
・ Before signing up, please carefully read all rules and regulations of the event. If the rules and regulations cannot be followed, participation may be denied by the event organizers. If anything is unclear, please do not hesitate to contact us – it is your responsibility to be prepared.

・The organizer is aware of the importance of your personal information. The use of personal information conforms to the organizer’s privacy protection law.
・Your personal information is used to provide you valuable services, such as race information, results, service from race affiliates, result ranking, and etc.
・The organizer may release your personal information when your life or body is in a life-threatening situation.
・The race organizer and its affiliates may contact you regarding your registration information.

Athlete Guides
・In most cases, athlete guides in English will be sent via email approximately 7-21 days before the event. However, the delivery of athlete guides is entirely dependent on the timeliness of the event organizers. Samurai Sports takes approximately one to two days from receipt of the Japanese athlete guide to translate into English.

Additional Surcharges
・If total cost is ¥10,000 or less, you will incur a flat fee service charge of ¥1,000.
・If total cost is more than ¥10,001, you will incur a service charge amounting to 10% of total cost.
Why the additional charges? They help us cover the cost of operating the registration platform, translation of athlete guides/event information, labor hours required to answer your event inquiries, etc. Depending on the event, the surcharges help to cover the cost of our physical presence at the event.

​Ise Shima International Triathlon Executive Committee



Official Website (Japanese)