Kujukuri 99T Triathlon


September 2020

Ichinomiya, Chiba

Athlete Entitlements

Samurai Sports Advantage

  • Easy registration

    Register in English without creating an account

  • Translated English athlete guide

    The information you need to complete your race safely

  • English email support

    Ask questions - and get answers!

  • Modify & transfer your entry

    Change waves, transfer entry, and self-edit up until 3-5 days before registration closes *fees may apply

  • Bilingual staff on-site

    Samurai Sports' bilingual staff on-site race-day

  • Saturday & race day packet collection

    Pick up your race packet on race day

  • Race briefing in English

    Receive race briefing from Samurai Sports' bilingual staff on-site

  • Post race follow-up

    Receive links to results, photos

Race Standard

  • Age Group awards

  • Event insurance

  • Bag deposit

  • Morning clothes bag

  • Race venue area shuttle buses

  • Post-race beach BBQ

  • Race T-shirt

  • Race swim cap

  • Finisher medal

  • Downloadable PDF finisher certificate

  • On-course aid stations

  • Timed race results

    View official results online

about the race

Kujukuri Triathlon, 99 tri for short, is one of Japan’s largest triathlons. Kujukuri Triathlon is known to be the “perfect triathlon for beginners” (and those seeking PBs!) due to the nature of the course. The toll roads used for the bike route are a straightshot with few sharp curves and the breezy shoreline on the run course is flat. The half Ironman / middle distance at the Kujukuri Triathlon continues for round two this year!

The Kujukuri Triathlon is located in Ichinomiya (Chiba Prefecture) and is easily accessible from Tokyo (just an hour and a half away by car!). Know as Japan’s second longest beach, the area is known for its year round water activities, such as surfing and jet skiing. Ichinimiya is also the site of the 2020 Tokyo Olympics surfing competition (read more). Registration fee includes the finisher’s BBQ party. Come and enjoy fresh grilled hamaguri (Japanese clams) and other famous local dishes before heading back to Tokyo!

Olympic Distance (Standard, 51.5KM)
• Swim 1.5KM (.93 mile)
• Bike 40KM (25 miles)
• Run 10KM (6.2 miles)

70.3 (Middle Distance, Half Ironman)
• Swim: 1.9KM (1.2 mile)
• Bike: 90.1KM (56 miles)
• Run: 21.1KM (13.1 miles)

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

2019 Race Details

2020 schedule TBA

September 21, 2019 (Saturday)
at Happy Science University Gymnasium
1300…70.3 briefing 1 (Japanese)
1400…Beginners Olympic Distance briefing (required for all first-time triathletes; Japanese)
1500…70.3 briefing 2 (Japanese)
1700…Olympic Distance briefing (wave 1-3; Japanese)
1800…70.3 briefing 3 (Japanese)

September 22, 2019 (Sunday)
at Ichinomiya Beach area
0430…Parking lot opens
1900…Parking lot closes

0635…Cycle Train departs Ryogoku Station
0730-1000…Transition opens
0730…Race briefing (wave 1-3; Japanese)
0756…Cycle Train arrives Kazusa-Ichinomiya Station (race briefing will take place aboard train)
0830…Race briefing (wave 4-7; Japanese)
1000…Wave 1 start
1005…Wave 2 start
1010…Wave 3 start
1015…Wave 4 start
1020…Wave 5 start
1025…Wave 6 start
1030Wave 7 start
1330…Transition re-opens
1430…Wave 1 COT
1435…Wave 2 COT
1440…Wave 3 COT
1445…Wave 4 COT
1450…Wave 5 COT
1455…Wave 6 COT
1500…Wave 7 COT
1658…Cycle Train departs Kazusa-Ichinomiya Station
1809…Cycle Train arrives Ryogoku Station

70.3 (Half Ironman/Middle Distance)
0500-0700…Transition opens
0515…Race briefing (special entries only; Japanese)
0700…Wave 1 start
0705…Wave 2 start
0710…Wave 3 start
0715…Wave 4 start
0720…Wave 5 start
1240…Transition re-opens
1500…Wave 1 COT
1505…Wave 2 COT
1510…Wave 3 COT
1515…Wave 4 COT
1520…Wave 5 COT
1700Transition closes

Olympic Distance – Individual
General: ¥33,550 (price incl. Samurai Sports service charge)
JTU member: ¥31,350 (price incl. Samurai Sports service charge)

Olympic Distance – Relay
General: ¥44,550 (price incl. Samurai Sports service charge)
With at least 1 JTU member: ¥42,350 (price incl. Samurai Sports service charge)

70.3 (Half Ironman/Middle Distance) – Individual
General: ¥45,100 (price incl. Samurai Sports service charge)
JTU Member: ¥44,250 (price incl. Samurai Sports service charge)

70.3 (Half Ironman/Middle Distance) – Relay
General: ¥56,100 (price incl. Samurai Sports service charge)
With at least 1 JTU member: ¥53,900 (price incl. Samurai Sports service charge)

Parking Pass: ¥1,000

Cycle Train:
Round Trip: ¥6,300 (price incl. Samurai Sports service charge)
・One Way: ¥3,900 (price incl. Samurai Sports service charge)

Special Edition Kujukuri 99T Triathlon Patagonia T-Shirt: ¥5,000 (2019 shirt sold out by 7/5)

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 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
・Age: Must be 18 or older on race day (no high school students)
Parent/guardian permission required if under 20 years old on race day
・Health: Must be in good health and adhere to all rules.
Race Briefing: Must be able to attend the information session/race briefing the day before the race (only the team captain needs to attend for relay participants).
Relay: 3 persons are mandatory for the relay (no 2-person relay teams)
Wetsuits: Wetsuits are NOT mandatory; however, they are recommended.

Cut-Off Time
Olympic Distance:
4 hours 30 minutes
・Swim: 1 hour
・Bike: 2 hours
・Run: 1 hour 30 minutes

70.3 (Middle distance/Half Ironman): 8 hours
・Swim: 1 hour 20 minutes
・Bike: 4 hours
・Run: 2 hour 20 minutes

・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 runners on course.
・Be a responsible athlete. Please make sure you have the physical ability to complete the course.

・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)

・70.3 and Olympic Distance participants registered through Samurai Sports should collect their race packet on Saturday. We will make exceptions, but you must email us beforehand.

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.
・Follow all traffic rules even during the race.
It is prohibited to receive assistance other than at official aid stations.
・Keep left during the bike and run portion. Be cautious of other athletes.
・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.

Attire & Gear
・All athletes must wear swim caps that are provided (unless you are a relay team member not swimming)
The use of wetsuits is mandatory. The water temperature is predicted to be 22-24C (71-75F).
・Must wear proper attire (both top and bottom) during the bike and run portion.
・Do not unzip your bike shirt.
・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 using 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 at the swim start. 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 chip per team.
You must return the timing chip at the end of the race. You will be charged 10,000 JPY if not returned.

About the Swim Leg
・The race official or lifeguard will ask you to withdraw if they feel you cannot safely continue.
・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.

Transition Area
・Only racers 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.
・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 any 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
・You should 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.
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
・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!
・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 certificates will be e-mailed as a PDF 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) & 70.3 Distance…view general course map here

Olympic Distance (map)
Swim 1.5KM / .9 miles
1x 1.5KM
at Ichinomiya Beach

Bike about 40KM / about 24.8 miles
1x 40KM 
Transition area: near Kujukuri Toll Road

Run 10KM / 6.2 miles
1x 10KM
Finish at Ichinomiya Beach

70.3 Distance (map)
Swim 1.9KM / 1.2 miles
1x 1.9KM
at Ichinomiya Beach

Bike 90.1KM / 56 miles
2x 45KM
Transition area: near Kujukuri Toll Road

Run 21.1KM / 13.1 miles
2x 10.5KM
Finish at Ichinomiya Beach

Ichinomiya Beach (start/finish)
Google Maps

Happy Science University (packet pick-up, expo, race briefing)
Google Maps

Ichinomiya City Hall (shuttle stop)
Google Maps

By Train
From Tokyo, about 1 hour 45 minutes
From Yokosuka, 2 hours 35 minutes
From Yokota AB, 2 hours 55 minutes
From Nagoya, about 3 hours 55 minutes

By Car
From Tokyo, about 1 hour 30 minutes (84.6KM / 52.6 miles)
From Yokosuka, about 1 hour 50 minutes (119KM / 73.9 miles)
From Yokota AB, about 2 hours 30 minutes (135KM / 83.9 miles)
From Nagoya, about 5 hours 15 minutes (469KM / 291.4 miles)

By Cycle Train (only suitable for Olympic distance)
Ride the Boso Bicycle Base train outfitted specifically for bicycles and their humans! Your bike can board the cycle train without a cover or being disassembled – from Ryogoku to the train station closest to the race site (and back). The train holds 90 bikes and persons – go on and make your life a little easier!  Cycle train tickets are not included in entry fee, must be purchased separately. Race briefing will be held aboard the train in Japanese.
・Learn more about the Boso Bicycle Base train here and here in English
・Learn about the Cycle Train in Japanese here.

Cycle Train Timetable
Depart Ryogoku station: 06:35 – Arrive Kazusa-Ichinomiya station: 07:56
・Depart Kazusa-Ichinomiya station: 16:58 – Arrive Ryogoku station: 18:09

​Race Venue Area Shuttle Bus
・Available for spectators and athletes. 
・Saturday Shuttle: 1100-1800
Ichinomiya City Hall – HSU – P2 – Ichinomiya City Hall
Sunday Shuttle: 
0600-1330: Ichinomiya City Hall – HSU – P2 – Ichinomiya City Hall
1330-1800: Ichinomiya City Hall – P2 – Ichinomiya City Hall
1230-1800: P2 – HSU – P2

・Limited paid parking around race venue
・Limited free parking for spectators and athletes is available at the Ichinomiya City Hall
・To receive a parking pass, you MUST select the parking pass option upon registration (¥1,000 per vehicle).

The trains (including the Cycle Train) won’t be running that early in the morning so athletes will need to consider staying the night nearby the race site. Book accommodation ahead of time as lodging will fill to capacity.

If you are arriving at Kazusa-Ichinominya station on race day, you may utilize the event-specific shuttle service to Ichinomiya beach. Shuttle buses depart every 15-30 minutes and bikes can be loaded onboard. You may also opt to ride to the race site (about 3KM), take a taxi or the public bus (bikes must be in rinko bike bags).

As with all events, please plan ahead and arrive early due to traffic congestion, weather conditions, and road closures.

Individual Awards
Top 3 Overall Male/Female
Top 3 Age Group Male/Female
18-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59, 60+ (Age group awards exclude winners of the Top 3 Overall Awards)

2019 Olympic Distance Men’s Results…click here
2019 Olympic Distance Women’s Results…click here
2019 Olympic Distance Relay Results…click here

2019 70.3 Men’s Results…click here
2019 70.3 Women’s Results…click here
2019 70.3 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.
・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.

・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.

・Participants who show inadequate respect for the environment and area by littering, entering areas off the course or other actions.
・Participants who fail to comply with instructions from race officials or course marshals.
・Participants who falsely declare their age, gender, and identification on their applications.
・Participants who commit wrongdoing.
・Participants who miss the starting time.
・Participants who fail to clear checkpoint cutoff times or those who do not reach the finish line by the final time limit. (Cutoff times are the times when you leave each checkpoint)
・Participants who fail to bring mandatory equipment.
・Participants who receive 3 (or more) penalties.
・Participants who cause an accident due to unsportsmanlike conduct.
・Participants who run with headphones or similar items that block external sound, excluding hearing aids.

・The race may be canceled for various reasons, including when a weather warning is issued, the course is in poor condition due to extreme weather, or participants’ safety cannot be guaranteed.
・Depending upon weather conditions, the race may also be delayed, rescheduled or the course may be changed to assure participants’ safety.
・No refunds or credits will be issued. This applies to incidents in which the event is cancelled for any reason including personal participant circumstances (such as illness) and incidents in which the event is cancelled due to unforeseen weather conditions or natural disasters.

・Follow Japan Triathlon Union (JTU)’s competition rules.
・Bicycles must be road bicycles and helmets must be worn at all times.
Wetsuits are mandatory.
・ 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.
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.

・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.

・ 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.

Kujukuri Triathlon Executive Committee



Official Website (Japanese)