AIMS-certified 21.1km course from the Kerameikos Archaeological Museum (near Thiseio ISAP station) along Iera Odos through Egaleo, Chaidari and Dafni, merging with the new Athens-Corinth National Road around the 8th km, finishing at Eleusis Heroes Square next to the archaeological site. Official electronic timing. Indicative checkpoint time at the Aspropyrgos refineries (13.5km) is 2 hours for finishers within the time limit; runners still on course after the 3-hour limit must board the collection bus or continue at their own risk. Age categories: 18-29, 30-39, 40-49, 50-59, 60+. Finisher medals for all; cups and medals for the top 3 men and women overall and top 3 per age category (no double awards), plus the oldest male and female finisher. Water stations at km 3, 6, 9, 12, 13.6, 15 and 18, isotonic drinks at km 12; water, isotonic drinks and bananas at the finish. Full medical coverage with ambulances, paramedics and doctors along the route. Shuttle buses from Elefsina to the start depart 07:00 from the municipal parking on Chatzidaki & Pagkalou streets; a return shuttle from Elefsina to Agia Marina metro station runs on a loop from 11:00 to 14:00 (last departure). Bag transfer from start to finish and a changing area near the finish at the 2nd Gymnasium of Elefsina (Chatzidaki street). Race pack pickup: Monday 7 to Wednesday 9 September 2026, 10:00-13:00 at the Municipality of Elefsina Directorate of Education building (Pagkalou & Kimonos 11, Elefsina), also 15:00-19:00 at Egaleo Town Hall (opposite Agia Marina metro station). Eligibility: born before 01/01/2008; minors need guardian consent via the online registration form. Entry capped at 850 participants; no health certificate required, but runners self-certify fitness during online registration. Info: elefsina.gr, tel. 210 556 5619 (daily 10:00-14:00).