1. The Hostivice races – 21km, “10km”, “5km” (approx. 21.09 km, approx. 10.54 km, approx. 4.67 km) – are open to all runners over 18 years of age. Persons from 14 to 18 years of age must have legal consent to participate in the competition; this should be submitted at registration (download form here).
  2. Each participant declares that he / she is a person over the age of 18 (or may prove the consent of a legal representative to participate in the event).
  3. Children RUN participants are required to submit written consent from a parent or legal guardian to participate in the race.
  4. Parental Ultra-Run (approx. 750 m) is intended for parents with children up to and including 13 years of age. Parents are responsible for their children at all times.
  5. Every participant must be aware of the risk of damage or personal injury arising from participation in the event.
  6. Each participant declares that they are voluntarily participating in the event.
  7. During the races, photographic and audio-visual images will be made by the organizer, which may be used by the organizer for their activities, especially for promotional purposes.
  8. Only duly registered runners who have paid the entry fee can participate in the races. Registration is possible online at It is possible to register on site only until 9.30 a.m. on the day of the race, and only if the availability of entries for individual races has not yet been exhausted.
  9. Participation in the race is at your own risk.
  10. All runners have a personal responsibility for deciding their physical readiness and the ability to run the chosen distance.
  11. The race will take place regardless of weather conditions.
  12. The organizer is not liable for any personal injury, property damage, or other harm related to participation.
  13. None of the organizers’ decisions are subject to judicial review.
  14. The starting number will be issued after proof of registration with an email and an ID card have been presented.
  15. Every participant must follow the instructions of the police, firefighters, medical service, volunteers, organizers and judges.
  16. Violation of one or more of the above rules (in particular, attempts to act dishonestly in any form) may result in disqualification from the race and removal from the scoreboard.
  17. Each participant is required to read and respect all important information and instructions published by the organizer on their website prior to the event.
  18. It is strictly forbidden to use skates, bicycles or other vehicles of any kind along the entire length of the track, or to shorten the race course in any way.
  19. Each participant is required to write contact details, medications used and any allergy treatments on their start number.
  20. The start number must be visible on the chest throughout the race. It is forbidden to cover it up in any way.
  21. Referees are responsible for presiding over the race.
  22. The starting number is not transferable. Any violation will lead to disqualification.
  23. Evaluation is done separately for men and for women.
  24. The official time is the time from when the starting pistol is fired until the finish.
  25. Protests can be filed in written form to the Director of the competition within 10 minutes after the announcement of the results of the relevant category. The protest will be resolved within 20 minutes of filing and the protester will be notified in writing of the outcome of the protest.
  26. The organizer reserves the right to change the conditions, rules and course of the race.