Ultra Mazury
Trail Running covering 10 km to 100 km with up to 1,810 m D+ in Ostróda (Warmian-Masurian Voivodeship, Poland)
Ultra Mazury is an endurance sporting event in Ostróda, Warmian-Masurian Voivodeship, PL focused on Trail Running. It is part of UTMB Index Races. Key features include Nature & Off-Road, Lakes & Ponds, Forest, Mountain.
The race program comprises 4 competitions, including Trail 100 km (100 km, +1,810 m D+), Trail 70 km (70 km, +1,395 m D+), Trail 37 km (37 km, +815 m D+), and Trail 10 km (10 km, +380 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 (ultramazury.pl).

Event characteristics
Races & distances (4)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Trail 100 km | Trail Running | 100 km | +1,810 m | 620 m - 1,380 m | Loop course | Route & profile |
| Trail 70 km | Trail Running | 70 km | +1,395 m | 623 m - 1,209 m | Loop course | Route & profile |
| Trail 37 km | Trail Running | 37 km | +815 m | 626 m - 968 m | Loop course | Route & profile |
| Trail 10 km | Trail Running | 10 km | +380 m | 629 m - 789 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 620 m to 1,380 m above sea level (+1,810 m D+, -1,810 m D-)
Elevation profile & course telemetry
Altitude from 623 m to 1,209 m above sea level (+1,395 m D+, -1,395 m D-)
Elevation profile & course telemetry
Altitude from 626 m to 968 m above sea level (+815 m D+, -815 m D-)
Elevation profile & course telemetry
Altitude from 629 m to 789 m above sea level (+380 m D+, -380 m D-)
Frequently asked questions (FAQ)
When and where does Ultra Mazury take place?
Ultra Mazury takes place in Ostróda, Warmian-Masurian Voivodeship, PL (start area at coordinates 53.6963° N, 19.9648° 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 Ultra Mazury?
The race program comprises 4 competitions, including Trail 100 km (100 km, +1,810 m D+), Trail 70 km (70 km, +1,395 m D+), Trail 37 km (37 km, +815 m D+), and Trail 10 km (10 km, +380 m D+). The competitions belong to Trail Running.
What is the course layout and elevation profile for Ultra Mazury?
The main competition (Trail 100 km over 100 km) is designed as a loop course featuring +1,810 m of elevation gain and -1,810 m of elevation loss, ranging between 620 m and 1,380 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 Ultra Mazury?
Official race regulations, course details, and registration information are provided on the organizer's website (ultramazury.pl).