One of the 50 best overseas ultras

  • Facebook Social Icon
  • YouTube Social  Icon
  • Twitter Social Icon

Trail Running Magazine, 2016

3 - 5 June 2022


100km - 3 days - supported

Carpathian Mountains


100km solo
(42km + 8km / 50km + 8km)
Marathon XFun (42km + 8km)
Fun Run (8km)


Embark on an adventure 

Ultrabug is a 100km 3-day, fully supported ultra marathon through the winding mountain footpaths, mineral water streams and remote culture rich villages in the Carpathian Mountains, Romania. 


It is suitable for all fitness levels and is a great first time ultra.

You can take part as a solo runner or in a team of two. Those who are not ready to cover the full 100km, can do Marathon XFun (42km + 8km) or just the Fun Run (8km) 


Need iTRA points?

Ultrabug ultra marathon

will earn you 3 iTRA points as a 100 km solo finisher

3 points itra.png

Find your way around the site


Get all the info you need about Ultrabug


Runner or supporter? 

Full board or race only?


See race results, galleries and race reviews

Who do we support?

Want to join the Ultrabug team?


Read it all in Romanian

Meet our sponsors 

How to become a sponsor?




We would love to hear from you...

Tel UK: +44 7733 20 40 70

Tel RO: +40 727 941 427 | +40 724 337 320

Join our mailing list

Never miss an update

  • Facebook - Black Circle
  • YouTube - Black Circle
  • Twitter - Black Circle