The Nadgoplański Bieg Dwóch Jezior is a 10 km road race connecting Kruszwica and Łojewo in Poland’s Kujawsko-Pomorskie region. It is part of the Kujawsko-Pomorskie Voivodeship Grand Prix, attracting runners seeking series points and local club athletes. The course is largely flat, though an exposed section can present side winds, making the race more challenging than its profile indicates.
The participants include swift front-runners, age-group contenders, and small club teams like KS ZRYW Radziejów, which fielded five runners in one year. Winning times have been under 32 minutes, with many completing the race between 40 and 60 minutes. This mix gives the event a club-road-race atmosphere rather than an elite-only feel. Prizes are awarded to the top open runners, age-group medalists, and the oldest participants.