ULTRAMARATONA 100K NIGHT RUN LONDRINA 2026

Ultramaratona 100K Night Run Londrina is a night race within Londrina's Parque Zerão, offering distances from 5K to 100K. It uses a short, flat circuit instead of a point-to-point course, with a 12-hour time limit for participants. The event limits entries to 300 athletes, maintaining a focused endurance meet atmosphere rather than a large-scale city event. The start and finish line is at Portal Mahamudra. Each lap is 1,018 meters on a closed circuit with minimal elevation. Shorter races utilize this loop: 5 laps for the 5K, 10 laps for the 10K, and 20 laps for the 20K. The ultra distances continue this repetitive pattern throughout the night. An official CBAT measurer has certified the course, and the race is homologated by the Brazilian athletics federation, a detail important for those prioritizing certified distance and the mental challenge of lap running.