The Euchidios Athlos, Euchidios HyperAthlos and The Nine Muses race are conducted as per the Regulations below.


Clause 1
The Euchidios Athlos is an international and historic ultra-marathon. The race is individual and it covers the route from Plataea to Delphi, or vice versa, 107.5 km. The race duration is 16 hours.
The race can also take place on the Plataea to Delphi and back, covering a distance of 215 km. The race duration is 36 hours.

In addition to the above, The Nine Muses race takes place on the same route as the Euchidios Athlos. The Nine Muses race is 59 km long and is conducted concurrently with the Euchidios Athlos, or on a different date at the discretion of the Organising Committee. The race duration is 8.5 hours and every year the race is dedicated to one of the nine Muses.

Clause 2
All applications should be submitted electronically no later than 15 March every year, or before the extension date, should one is announced. Any applications received after 15 March will not be accepted.

The Organising Committee will select all runners based on the performance requirements; their decision is irrevocable. The Organising Committee reserves the right to deny an application even if the runner meets the performance requirements. In this case the Organiser does not have to provide an explanation.

Clause 3
Runners will have to be present at the starting line at least an hour earlier for preliminary checks. Late arrival will result in the runner’s disqualification.

Clause 4
Runners will have to provide a medical certificate of good health. The medical certificate must include the MD’s statement that the runner is fit to participate in the race. The certificate needs to be recent, issued within three months before the race.

Clause 5
The Organising Committee bears no responsibility whatsoever for the runners’ health during and after the race. Runners agree to assume full responsibility of their health and absolve the Organiser and any participant parties (judges, volunteers, police or sponsors) from any responsibility.

Runners should realise that the race is demanding, ensure that their health condition allows them to participate and that they are adequately prepared. Runners should also be aware that due to the immense race distance, medical coverage is not available throughout the race and at all times.

Clause 6
Runners who wish to collect their personal items at the designated CPs must hand over their drop bags with their BIB number and the desired CP number clearly printed on them. The drop bags must be handed over the day before the race.

Clause 7
On completion of the 16-hour, 36-hour, or 8.5-hour race limit, any runner who wishes to continue the race, or eliminated due to cut-off time, can do so in his/her own full responsibility. In such case, the Organiser is absolved of any liability for the health and safety of the runner.

Clause 8
Runners must run on the left of the road apart from specific sections which will be designated. In these sections traffic will be allowed on the right of the road.

Clause 9
Foreign runners (non-Greeks) are allowed to bear their flag and their national emblem on their apparel.

Clause 10
Runners must wear their BIB number visibly on their chest and back at all times, as well as any sponsor logos.  

Clause 11
All types of political messages, product promotion (marketing), beliefs and slogans are not allowed on the runners’ apparel.

Clause 12
Runners are to display their BIB number at every CP or race official. Refusal to display and declare the BIB number will result in disqualification.

Clause 13
Runners are only to receive help at the designated CPs. It is forbidden to be followed by a vehicle, bicycle, or individuals unrelated to the race, apart from the Organiser’s vehicles.

A warning will be issued whereas a runner is found to violate any of the above. A second warning will result in disqualification.

Clause 14
Under no circumstances runners are allowed to ride on any type of wheeled vehicle, including skateboards or rollerblades. Any violation of this clause will result in disqualification.

Clause 15
Runners must follow the designated route at all times. If for any reason a runner deviates from the course, (s)he must return on foot at the point where (s)he diverged.

Only the Organiser can transport a runner, if this is deemed necessary, to the point where (s)he deviated.

Clause 16
Any runners found using any illegal substances (doping) will be disqualified.

Clause 17
The use of mp3 players, headphones and any kind of music reproduction device is prohibited. Runners are to stay vigilant for health and safety reasons.

Clause 18
Should a runner wishes to retire from the race (DNF), (s)he must hand over his/her BIB number to or a race official and sign the withdrawal form at the nearest CP. 

Clause 19
A runner who hands over his/her BIB number (DNF) is not allowed to remain in the race and re-enter at a later point without a number. Runners without a number are to be carried to the finish by the Organiser. 

Any runner with his/her own means of transportation must declare this in the withdrawal form found at the nearest CP.

Clause 20
All runners are to reach the CPs no later than the cut off times. Failure to do so will result in disqualification where runners must hand over their BIB numbers. Where judged necessary by the Organiser, runners may be allowed to proceed to the next CP as long as they remain within the time limits. Failure to reach the next CP on time will result in disqualification. 

Clause 21
Runners are to provide their vehicle registration number and the details of their support crew ten days before the race.

Support vehicles must display the supporting runner’s name together with the insignia that will be given by the Organiser together with the BIB number.

Clause 22
All runners and their support crew are to be aware of the race Regulations. For any further clarifications please contact the Organiser.

Clause 23
All runners, support crews, volunteers and judges must respect the environment and refrain from littering.

Clause 24
It is prohibited to dawdle with support vehicles or bicycles along the course throughout the race duration (8.5 hours, 16 hours and 36 hours). Only the following types of vehicles are allowed to be on the course with the necessary permission from the Organiser.
- Vehicles providing medical help or physiotherapeutic support. These vehicles and their crews must provide their services to all runners, if asked, and not solely to their supporting runner(s).
- Media vehicles and photographers covering the event. These vehicles must park away from the CPs and avoid obstructing runners or delay their route.

Clause 25
For safety reasons all support vehicles and people involved in the race must drive slowly on the right hand side.

Vehicles should drive with their hazard warning lights on at night.

Clause 26
Support cars and crews should not travel at the same speed as the runners. This is considered unlawful and will result in the runner’s disqualification.

Support cars, crews, friends and spectators should not travel in the race opposite direction.

Clause 27
In general, rules violation from crews will result in the runner’s disqualification.

Clause 28
CPs can change location without warning due to weather conditions, road works, road lighting etc.

Clause 29
All runners are expected to respect the Olympic spirit and Olympic ideals. Runners are to show impeccable manners and behave with courtesy to their fellow runners and the Organiser. The Euchidios Athlos is an historic race that we all owe to respect.

Clause 30
Finishing runners, regardless of ranking, are to be present at the prize award ceremony. Any athletes who for any reason choose to leave the award ceremony will not be awarded and will not receive the race awards. Should an athlete is unable to attend the award ceremony, (s)he should inform the Organiser in advance.

Clause 31
Any incident or situation not mentioned in the present Regulations will be resolved on site by the race judge or the Organiser.

Clause 32
It is prohibited to make photographs, or video footage, as well as displaying any race footage in the media without the written consent of the Organiser.

Publishing the race results and any photographic material following the race is in the absolute jurisdiction of the Organiser.

Clause 33
Any complaints or objections may be made in writing and delivered to the Organiser until Saturday evening at 20:00hrs. The consideration of any complaints or objections remain in the exclusive jurisdiction of the Organiser.

Clause 34
Runners will be disqualified for the following reasons:

- Failure to comply with the clauses of this Regulation.
- Failure to make the cut-off times at all designated CPs.
- Whereas deemed necessary by race doctors.
- The Organiser implements a system of rules violations with yellow and red cards.

Clause 35
During night time all runners are to bear a white head lamp, red lamp on the back and high visibility garments. Runners without the required equipment will be disqualified from the race.

Clause 36
The Organiser can intervene and reprimand running crews in the event of rules violation. Such intervention can directly affect the supported runner.

Clause 37
The Organiser reserves the right to change the race date, relocate CP locations, change the race time and cancel the event(s) if deemed necessary.  In case of race cancellation for reasons beyond the control of the Organiser (inclement weather, hurricanes, earthquakes, road blockades, industrial actions, prohibition from the authorities etc.) , runners are not entitled to claim a refund equal to the race participation fee, flight costs, accommodation and other travel expenses.