Race Information

Race Information


Japan Association of Athletics Federations (JAAF)
The Mainichi Newspapers
Shiga Prefecture
Otsu City


NHK (Japan Broadcasting Corporation)

Supporting organizations

Shiga Prefectural Sports Association
Otsu City Sports Association
Sports Nippon Newspapers


Shiga Association of Athletics

Major Sponsor

Sumitomo Electric Industries, Ltd.

Supporting Sponsor

Citizen Watch Co., Ltd.
GS Yuasa Corporation

Contributing Sponsors

Shiga Prefectural Police
Japan Ground Self Defense Force Camp Otsu

Race Date & Starting Time

Sunday, 28 February 2021
Starting Time 9:15AM

Course Outline

42.195km (AIMS and JAAF-Certified Lake Biwa Mainichi Marathon Course)
Ojiyama Stadium --- Yanagasaki --- Seta-Kara Bridge (West) --- Temple of Ishiyama --- Seta River Weir --- Seta-Kara Bridge (East) --- Shiga Prefectural Rowing Park --- Shin-Seta Water Purification Plant (turning point) --- Ojiyama Stadium

Qualification Guidelines

A. Athletes must fulfill the following conditions.
1.  Athletes must be 19 years of age or older on the day of the race.
Also, please note that Lake Biwa Mainichi Marathon is a men’s only event.
2.  Athletes must have one of the following time in an official event of the International Association of Athletics Federation(IAAF) or a race for members of the Association of International Marathons and Distance Races(AIMS)  from 1 December 2017 until the date of entry.
Marathon:  2 hours 30 minutes or faster
Half marathon:  1 hour 10 minutes or faster
30km:  1 hour 40 minutes or faster
20km:  1 hour 05 minutes or faster
10,000m:  31 minutes or faster
* Important Note:For those participants who are not registered JAAF and wish to lodge their
application from overseas, please notify us by e-mail as soon as possible. As the registration
procedure for non-JAAF-registered athletes does differ from standard applications, it requires
individual handling. Please note that all registration enquiries regarding the 2021’s marathon must
be made by 31 December 2020. Enquiries after the deadline will not be accepted.
B. Athletes recommended by the JAAF.


A.  Lake Biwa Mainichi Marathon is directed under World Athletics (WA)・Japan Association of Athletics Federations (JAAF) Competition Regulations 2020 and also the Lake Biwa Mainichi Marathon Rules.WA authorizes this competition is the Gold Label race and applies WA Road Race Label Regulations.
B.  For traffic and security reasons and for management of the race, checking stations will be closed after cut-off times. Cut-off times are as follows;
15km point:     52 minutes
20km point:     1 hour 10 minutes
25km point:     1 hour 28 minutes
30km point:     1 hour 48 minutes
35km point:     2 hours 09 minutes
40km point:  2 hours 30 minutes
C.  Athletes who have highly possibility not to be able to arrive at the next checking station in time, or who are judged not to be able to keep the race by the competition officer might have to stop running.

Entry Fee

¥5,000(to be paid in cash at the time of competitor reception)

How to Apply

Complete the attached entry form. With the approval of your affiliated federation, submit the forms to the address below by registered mail.

Registration Office

The Lake Biwa Mainichi Marathon Office 2021
The Mainichi Newspapers Osaka Office
3-4-5 Umeda, Kita-ku, Osaka-city, Osaka, 530-8251, Japan
E-mail: jigyoubu@pearl.ocn.ne.jp
(Please be sure to include the words "Lake Biwa Marathon 2021" in the subject line of your e-mail.)

Deadline of the entry

Non-JAAF-registered athletes : Thursday, 31 December 2020
Entry form and other documents must be received by the deadline date and entries mailed after the deadline date will not be accepted.

Privacy Policy

  1. The organizer and co-organizer observe all applicable laws concerning privacy protection and the handling of personal information. The collected data will be used for race eligibility screening, the making and updating of program booklet and the official website, publicizing race finishing times. Furthermore, these data will serve as contact information for the race management headquarters.
  1. The race may broadcast on television and stream as Internet video.
3.  The moving images, photograph, articles, and the personal records of the race may be used in the advertising materials such as booklets and posters, and be placed in the media such as TV, radio, newspapers, magazines and Internet. The organizers, co-organizers, and any organizer-approved third party may execute it for promotional and race management purposes.

Race Packet Pick-up

Saturday, 27 February
All participants must pick up Race Number and RC Chip at the athletes lounge of Lake Biwa Otsu Prince Hotel.

Award Ceremony · Reception

Sunday, 28 February, from 3:00pm at Lake Biwa Otsu Prince Hotel
1. The first 8 finishers are obliged to attend the ceremony.
2. All participants will receive a race memento.

Athletes Dormitory

Lake Biwa Otsu Prince Hotel
Address: 4-7-7, Nionohama, Otsu City Siga, 520-8520 Japan
Tel: 81-(0)77-521-1111

Important Notes

1.  The organizer will not provide any pre-medical checkup. All participants must take personal
responsibility for their own personal health condition. It is strongly recommended that each
participant undergoes a medical check prior to the race of their own accord.
2.  The organizer will administer first aid to those participants who display discomfort or sickness
or who incur injuries during the race, but no responsibility will be taken for any subsequent
3.  Doping control is conducted under World Athletics Anti-Doping Regulations and Rules or Japan Anti-Doping Regulations.
The organizer will collect either a blood sample, urine sample or both, in order to conduct a dope test, before or after the race. According to instructions, the athletes must undergo a doping test.
4.  Athletes who are required to take prohibited substances or methods written in the Prohibited
List to treat an illness must apply TUE (Therapeutic Use Exemptions). For details, see the website of the JAAF Medical Committee ( http://www.jaaf.or.jp/medical/index.html) or the Japan Anti-Doping Agency(http://www.playtruejapan.org).
5.  As of January 1 2015, The World Anti-Doping Code, The International Standards and The Japan Anti-Doping Code have been revised.The athletes who will be under 20 years old on the race day must read the race information ( PDF file http://www.jaaf.or.jp/pdf/doisho.pdf ) for more details.