Before you proceed to fill the application form in the next page please read carefully and accept some basic rules:  

• You must have completed the age of 20 at least by the race day
• One 35K trail race at least in the last two years, is the necessary qualification for entering the ROC
• You must accept the philosophy of semi-autonomy and solidarity during the race. Only three aid stations along the route.
• Basic data of the race are: length 50 miles (82km), elevation gain +4200 meters, time limit 18 hours
• You may encounter wild animals during the race, such as bears, wolves, boars etc. that you are obliged to respect
• Weather conditions in the race area may be severe (cold or snow) due to the season, so each athlete must be properly prepared for this fact
• During the whole race you must respect the nature (Rodopi National Park), the organizers, the volunteers, the regulations and the other athletes
• Organizers have the duty to provide only a light support to the athletes, by serving them food or medical help in the aid stations  
• You undertake in full all the risks of participating the race, releasing Organizers from any responsibility of accidents
• You are not required to bring along any medical certificate proving the good of your health, because this may be fraud
• There is no obligatory equipment in the race! Despite this, all athletes have the full responsibility to carry along with them all the necessary so-called "survival equipment", based on their needs, prediction and previous experience
• No escorts or pacers are allowed in the race. Athletes are allowed to have outside support only in two points along the route
• One drop-bag will be given in two different points during the race
• The only penalty for disregarding the regulations is disqualification from the race  
• The entry fee is 50 euros (fifty euros) and is payable only through a credit card.
• No money prize for the winners will be granted, only commemorative medals for all athletes finishing within 18 hours time limit