Hajnowska Dwunastka

Hajnowska Dwunastka is a running event in Hajnówka, Poland, connected to the Hajnówka Forest District. Organizers describe it as an intimate race and the younger sister of the Hajnówka Half Marathon. The name refers to its twelve-kilometer format, though current listings also show a 5 km race option. The race is traditionally held on forest-district terrain near Hajnówka, making it more local and low-key than a large city road race. Its history spans multiple editions, and the available event pages focus on registration, distance choice, and training-plan preparation rather than elite fields or festival extras.