Held at the Serres International Circuit, the largest and most modern motorsport circuit in the Balkans, on the certified 3047m soft-asphalt lap (flat, 7 left turns and 9 right turns) — a non-competitive fun run where participants complete as many laps as they like within the event window. Open to all ages (the only race in this event not restricted to 18+); children may take part with a parent's signed waiver, or running alongside an accompanying adult. Children under 10 accompanied by an adult participate for free. Electronic chip timing, chip issued with bib at pickup. Registration opens August 1, 2025, online only. Bib/kit pickup: Thu Mar 19 & Fri Mar 20, 17:00-21:00, at Plateia Kroniou (in front of the Serres Chamber of Commerce); Sun Mar 22, 09:00-10:15, at the circuit secretariat. Awards ceremony Sunday March 22, 12:00: cups for the top 3 men and top 3 women, commemorative medal for every participant. Entry fee includes bib, timing chip, medal, aid-station food/drink and event T-shirt. Strict no-littering rule (waste only in designated bags at aid stations; penalty is disqualification); participants must obey race judges. Protests must be filed in person within 30 minutes of finishing, decided by the race jury before the awards ceremony; the decision is final and binding. Organizers may briefly delay the start in case of dangerous weather. Participants take part entirely at their own risk and self-certify fitness via a liability waiver signed at bib pickup. Cancel by Feb 15, 2026 for a 50% refund within 10 business days; no refund or transfer after that date; transfer to next year's edition allowed only if requested by Feb 15, 2026. Official results published a few days after the event pending verification. Info: support@serrescircuitrun.gr, +30 6973440049.