The 57km distance symbolises the 57 victims of the Tempi rail tragedy. Time limits: km 22.9 (Sergoula) cutoff 4:30h; km 43.9 (Potidaneia) cutoff 9:30h; finish cutoff 12:30h. Aid stations (food, water, isotonic drinks, gels, fruit, nuts): STAN 1 Plalistra km 6.6; STAN 2 Paliomalos km 12.1; STAN 3 Pyrgos km 17.2; STAN 4 Sergoula km 22.9 (cutoff 4:30h); STAN 5 Palioxori km 26.6; STAN 6 Trikorfra km 33.2; STAN 7 Potidaneia km 43.9 (cutoff 9:30h); STAN 8 Palioxari km 51; STAN 9 Teichio km 54.5. Race package includes: technical briefing the day before the race, bib number, electronic chip timing, finisher medal, post-race meal, commemorative T-shirt, and medical services during and after the race. Route: Teichio – Plalistra – Paliomalos – Pyrgos – Sergoula – Palioxori – Trikorfra – Potidaneia – Palioxari – Teichio. Highest point: Trikorfra summit (+2,246m cumulative at km 33.2). Most technical sections: km 10.9 (steep descent to stream) and the ridge path in the opening kilometres.