One of the 50 best overseas ultras

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

Trail Running Magazine, 2016

4 - 6 June 2021


100km - 3 days - supported

Carpathian Mountains


2020 Edition


UTMB 2019

Ultrabug 2020 cancelled

29 March 2020

As many of you have probably imagined, Ultrabug 2020 is not going to happen. 
We were hoping things would improve sooner but the reality is not looking very good at the moment. 
So, all going well, the 7th Ultrabug edition will run at the beginning of June next year,  4-6 June 2021 (provisional date, to be confirmed later this year). 
For registered runners, there 2 options: automatic transfer of current registration to next year (no action needed) or 50% refund.
Should you opt for refund, please email us between 1 - 15 May 2020 (
All registered runners will also be notified about these changes in the following days via email. 
Stay safe and take care!

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.

Need iTRA points?

Ultrabug ultra marathon

will give you 3 iTRA points

Find your way around the site

D1 Start4.JPG

Get all the info you need about Ultrabug


Runner or supporter? 

Full board or race only?

UTMB 2019

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

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

© 2019 by Ultrabug