The Rotten Twelve
Trail Running covering 12 km in Zielona Góra (Lubusz Voivodeship, Poland)
The Rotten Twelve is an endurance sporting event in Zielona Góra, Lubusz Voivodeship, PL focused on Trail Running. Key features include Forest, Nature & Off-Road.
The competition program features Parszywa Dwunastka (12 km, +312 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (parszywa12.wordpress.com).

Event characteristics
Races & distances (1)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Parszywa Dwunastka | Trail Running | 12 km | +312 m | 106 m - 237 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 106 m to 237 m above sea level (+312 m D+, -312 m D-)
Frequently asked questions (FAQ)
When and where does The Rotten Twelve take place?
The Rotten Twelve takes place in Zielona Góra, Lubusz Voivodeship, PL (start area at coordinates 51.9355° N, 15.5064° E). The exact date for the next edition is currently open and will be announced by the organizer.
What races and distances are offered at The Rotten Twelve?
The competition program features Parszywa Dwunastka (12 km, +312 m D+). The competitions belong to Trail Running.
What is the course layout and elevation profile for The Rotten Twelve?
The main competition (Parszywa Dwunastka over 12 km) is designed as a loop course featuring +312 m of elevation gain and -312 m of elevation loss, ranging between 106 m and 237 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.
Where can I find registration and official race rules for The Rotten Twelve?
Official race regulations, course details, and registration information are provided on the organizer's website (parszywa12.wordpress.com).