22nd Kamogawa

Eco Marathon

scroll for race details

April 29, 2021

Kamogawa (Kyoto)

10km (road)

5th Tondabayashi

Eco Marathon

scroll for race details

May 3, 2021

Tondabayashi (Osaka)

10km (road)

the Eco Marathon ethos

bibs with timing chips reused each race

portion of entry fees donated to charity

lead runners led by bicycle

race day energy needs solar powered

Race Standard

  • Easy race day check-in

    Collect what you need to race on race day

  • Age Group awards

  • Event insurance

  • Race goodies (items vary by race)

  • Timed race results

    View official results online

  • Downloadable finisher certificate

  • Bag check (no valuables)

  • Aid stations (varies by race)

Samurai Sports Advantage

  • Easy registration

    Register in English without creating an account

  • Modify & transfer your entry

    Change categories, athlete to athlete transfer permitted, and self-edit up until 5 days before registration closes *fees may apply

  • English athlete guide

    The information you need to complete your race with peace of mind

  • English email support

    Ask questions - and get answers!

  • Post race follow-up

    Receive links to results, photos

about the Eco Marathon series

Steps Taken by the Race Organizer
・ Race bibs (including timing chip) can be collected and returned on race day. 
Staff and volunteers will wear face shields and masks
Hand sanitizer will be provided at the race venue. 
・All athletes must remain covered with a buff, mask, or similar face covering at all times at and within 100 meters of the race venue (including the start/finish area).
・No awards presentation. Results will be posted online. Awards will be mailed to winners.

Athletes must agree and abide to the following measures to prevent infection and the spread of COVID-19. 
・All athletes must wear a mask or face covering at the start/finish area and when walking to and from the race venue.

・Your failure to prepare and be informed does not constitute an emergency for others. Make sure to read through all of the event information below to understand the race details. Ask questions if you are uncertain.

General
・ No deferrals, credits, or refunds will be issued once registration has closed. This applies to incidents in which the race organizers are forced to cancel, postpone, or otherwise delay the event for the safety of athletes, staff, and volunteers. Such incidents include, but are not limited to severe weather, official emergency declarations, natural disasters (including earthquake), pandemic, biochemical or nuclear fallout, and personal circumstances of the participant (including illness, pregnancy, injury or similar catastrophe).
・Depending on the event, transfers and certain modifications to your entry may be permitted. Generally, entries may be transferable and/or permit modifications until 5 days before the last day of registration. After this period, all transfers are considered illegal and modifications will not be accommodated.
・Athletes may request a refund in writing via email, up until the last day of registration. Refunds will be processed online minus ¥2,000 transaction fees and administrative fees. 

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.

Insurance
・ 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.

Race Organizer 
Eco Marathon
ecomarathon@runningintokyo.com
048-473-0898

Official Website
ecomarathon.run (Japanese only)

meet the race director

Juergen W.

A native of Germany, Juergen has called Japan home for the past 31 years. Passionate about environmental issues and sustainability, Juergen has taught the subject at Seoul National University and Keio SFC. In 2008, Juergen started the Eco Marathon series to provide an alternative running experience focused on social responsibility and giving back to the community. He has organized more than 100 races and is currently trying to set an age-graded PB at age 62 in his new carbon racers – the target is to get close to 1:30 for the half marathon.

April 29, 2021

Kamogawa (Kyoto)

10km (road)

about the race

April 29, 2021 (Thursday)
at Kamogawa Park (Kyoto)

0930-1030…athlete check-in
1100…race starts
1230…awards, closing ceremony
1400…
event ends (tentative)

10km
¥3,500 (¥4,000 incl. transaction fees)

Age Eligibility
・10km…must be 15 or older

Cut Off Times
10km…90 minutes 
・Must finish within 70 minutes to view results online

Important
Maximum 300 athletes
・First come, first served.
Once the maximum number of athletes is reached, registration will close. 
・Be a responsible athlete. Please make sure you have the physical ability to complete the course.

10km
・The course takes place on the Kamogawa River cycling course
・Course is flat and features mixed surfaces, including packed dirt and asphalt
・One aid station will be available

Start/Finish
・Kamogawa Park
  (Kyoto-shi, Kita-ku)
鴨川公園 出雲路橋西詰南側(京都府京都市北区出雲路俵町3)
Google Maps

By Train
・about 15 min. (1km) by foot from Demachiyanagi station

Parking
・None, vehicles parked illegally will be towed at the owner’s expense. Please use public transportation.

・Ensure you have transportation plans figured out BEFORE registering for this race.

・All participants are entitled to a backpack (10 liter).
・All finishers are entitled to a neck gaiter (buff) and downloadable finisher certificate.
・No shirts or medals. 

10km
Top 6 overall men
Top 3 overall women
Champion age group awards

Age Groups
29 and under, 30-39, 40-49, 50-59, 60-69, 70-79, 80+

・Free bag check will be available at the start. Please do not bring valuables. 
・Your failure to prepare and be informed does not constitute an emergency for others. Make sure to read through all of the event information below to understand the race details. Ask questions if you are uncertain.

General
・ No deferrals, credits, or refunds will be issued once registration has closed. This applies to incidents in which the race organizers are forced to cancel, postpone, or otherwise delay the event for the safety of athletes, staff, and volunteers. Such incidents include, but are not limited to severe weather, official emergency declarations, natural disasters (including earthquake), pandemic, biochemical or nuclear fallout, and personal circumstances of the participant (including illness, pregnancy, injury or similar catastrophe).
・Depending on the event, transfers and certain modifications to your entry may be permitted. Generally, entries may be transferable and/or permit modifications until 5 days before the last day of registration. After this period, all transfers are considered illegal and modifications will not be accommodated.
・Athletes may request a refund in writing via email, up until the last day of registration. Refunds will be processed online minus ¥2,000 transaction fees and administrative fees. 

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.

Insurance
・ 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.

Athlete Guides
・Athlete guides in English will be sent via email approximately 1-2 weeks before the event by the race organizer. 

May 3, 2021

Tondabayashi (Osaka)

10km (road)

about the race

May 3, 2021 (Monday)
at Nishi-itamochi Ground

1000-1030…athlete check-in
1230…awards, closing ceremony
1400…
event ends (tentative)

10km
¥3,500 (¥4,000 incl. transaction fees)

Age Eligibility
・10km…must be 15 or older

Cut Off Times
10km…90 minutes 
・Must finish within 70 minutes to view results online

Important
Maximum 200 athletes
・First come, first served.
Once the maximum number of athletes is reached, registration will close. 
・Be a responsible athlete. Please make sure you have the physical ability to complete the course.

10km
・The course takes place along the Minami Kawachi Cycle Line, a scenic cycling route lined with trees
・Course is flat and paved in asphalt – PR-friendly and beginner-friendly
・No aid stations

Start/Finish
Ishikawa Kasenshiki Ground, near Showa Bridge 
石川河川敷グラウンド、昭和橋東詰下

Google Maps

By Train
・about 10 min. by foot from Kawanishi station
・Take a right upon exiting Kawanishi station. Cross route 170 and continue straight. Cross Showa Bridge and take an immediate left. Venue is on the floodplains by the Ishikawa River.

Parking
・None, vehicles parked illegally will be towed at the owner’s expense. Please use public transportation.

・Ensure you have transportation plans figured out BEFORE registering for this race.

・All participants are entitled to a backpack (10 liter).
・All finishers are entitled to a neck gaiter (buff) and downloadable finisher certificate.
・No shirts or medals. 

10km
Top 6 overall men
Top 3 overall women
Champion age group awards

Age Groups
29 and under, 30-39, 40-49, 50-59, 60-69, 70-79, 80+

・Free bag check will be available at the start. Please do not bring valuables. 
・Your failure to prepare and be informed does not constitute an emergency for others. Make sure to read through all of the event information below to understand the race details. Ask questions if you are uncertain.

General
・ No deferrals, credits, or refunds will be issued once registration has closed. This applies to incidents in which the race organizers are forced to cancel, postpone, or otherwise delay the event for the safety of athletes, staff, and volunteers. Such incidents include, but are not limited to severe weather, official emergency declarations, natural disasters (including earthquake), pandemic, biochemical or nuclear fallout, and personal circumstances of the participant (including illness, pregnancy, injury or similar catastrophe).
・Depending on the event, transfers and certain modifications to your entry may be permitted. Generally, entries may be transferable and/or permit modifications until 5 days before the last day of registration. After this period, all transfers are considered illegal and modifications will not be accommodated.
・Athletes may request a refund in writing via email, up until the last day of registration. Refunds will be processed online minus ¥2,000 transaction fees and administrative fees. 

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.

Insurance
・ 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.

Athlete Guides
・Athlete guides in English will be sent via email approximately 1-2 weeks before the event by the race organizer.