RACE FORMAT: Loop course of 21.1km through the traditional villages of Thymiana and Frangovouni. Start and finish in front of the former Thymiana Town Hall (Δημαρχείο Θυμιανών), Kambos, Chios. Start time: 08:02. Time limit: 3 hours, cutoff 11:00. Maximum 500 participants. ELIGIBILITY: 18+ years old. REGISTRATION: Via https://www.chiosrunning.gr. Deadline: Sunday 16 August 2026. Entry fee: €27 (includes electronic timing, bib with athlete's name, technical t-shirt while supplies last, commemorative diploma, finisher medal). Payment by credit/debit card only (Visa, MasterCard, Maestro, American Express). PACKET PICKUP: Friday 21 Aug 17:00–20:00 and Saturday 22 Aug 10:00–17:00 at Chios Town Hall (Δημαρχείο Χίου). ROUTE MARKING: Course marked by organizers with km markers at every kilometer and volunteers at key junctions. Water stations at start/finish and along the route. TIMING: Chip timing; chip must be attached behind bib or on shoe and athlete must cross timing mats. AWARDS: Medal and diploma to top 3 men and women in general classification; trophy to 1st male and 1st female. Commemorative diploma and medal to all finishers. CANCELLATION: Accepted in writing until 3 August 2026; €5 admin fee retained. Refunds processed approximately one month after the race. PERKS: 40% discount on ferry tickets for all participants; special accommodation rates to be announced. Contact: chiosrunning@gmail.com, tel. 6949071256 / 6937726975. Organizers: Chiosrunning Athletic Health Club of Chios, Municipality of Chios, Regional Unit of Chios.