Rediscover your abilities while discovering the beauty of the Rhodopes


The race




Zlatograd, 1 Stefan Stambolov St.


28.09.2024, 11:00 am

Control time

3 hours

Registration fee


from 16.04.24 to 100 participants

Registration price

28 Euro


6 Euro

How can I pay

Bank transfer

Bank: DSK Bank​
IBAN:​ BG71STSA93000025826614
Recipient: ​Sdruzhenie "K3 ULTRA"
Reason for payment:​ Your names and registration code

Easypay / ePay.bg system

By bank cards registered in ePay.bg
By bank cards not registered in ePay.bg (ePay World)
In cash at EasyPay checkouts.


• Registration without payment is NOT considered finalised!
• Registration opens on 16th May and will be closed with the 100th registered participant.
•  T
he registration fee DOES NOT include a GBR K3 ULTRA T-SHIRT in the starter pack When registering for the event it can be additionally purchased.

GEOPS PROFI – The new challenge for 2024.

GEOPS PROFI is suitable only for a limited number, very well prepared runners!

 GEOPS PROFI is 20 km long and total ascent 1000 D+. There will not be any aid stations along the route and the time limit will be 3 hours. Our best sprint distance runners will meet here.

 The start of GEOPS PROFI is in the centre of the village of Kushla. The runners will be seen off by the 14 residents of the village as well as all the guests of K3 ULTRA who signed up for the incredible hike to the emblematic caves above Kushla.

 After the start the runners will take along a beautiful path that will soon lead them to the very borderline, along which they will be moving for about 15 km. They will have the chance to pass by 8 borderline pyramids, which provide unforgettable views both of Greece and Bulgaria. It is hard to decide which part of the track is the most beautiful, if you just stop for a moment, the whole magic of the border will be imprinted deeply in the runners minds.

 At the tenth kilometre GEOPS PROFI joins with the track of GBR 23K, and after another 5 km – the one of GBR 13K. From the borderline follows a descent to the Bucheto area, from whose meadow reveals the most beautiful view of the old town, then comes crossing the Varbitsa river and the finishing line.

Big things happen when people meet mountains!


The K3 ULTRA GBR T-shirt is made of high quality breathable fabric to be a loyal and faithful ally of the runners in the mountain. The design of the T-shirt successfully conveys and complements the overall experience of K3 ULTRA.

*The T-shirt of the event is NOT included in the starter pack, but it can be ordered additionally on registration.

What is included in the K3 ULTRA entry fee

What you get

Starter pack

The starter pack for each contestant includes a starter number, gifts from the sponsors and partners of the competition as well as a special surprise prepared by the organisers.

Perfect event organisation

K3 ULTRA participants will have carefully placed markings, cleared and safe trails with minimal asphalt sections, electronic reporting of the results, information on hotel accommodation, tent and camper site. Professional photo footage.


Ability to rank in UTMB competitions.

Medical assistance

The safety of the participants in the ultramarathon is ensured by mountain insurance included in the entry fee and the availability of medical assistance during the entire event.

Food and drinks

The aid stations at the ultramarathon will be stocked with water, hot and refreshments. Special food is also provided – fruits, vegetables, Rhodope specialities, as well as supplements.

Unforgettable moments

Amazing views, emotional experience, fabulous Rhodopes and new friendships. All participants who cross the finishing line of K3 ULTRA will receive a medal - part of the Grand Slam, uniting the leading ultramarathons in Bulgaria.


Maps, tracks and technical information

Get ready for the big day

Important information about the race



Mandatory equipment will be checked at the start or when the starter packs are given. Each participant must carry their own mandatory equipment and may be checked at any station OR at the finish line when the race has ended.  Everything that is missing from the mandatory equipment, will result in immediate disqualification. There are no penalties for a missing recommended gear.



Competitors must fill in certain declarations in order to participate in the race. You can download the declarations here. Please read, print, sign and bring in person to the Registration Desk.

Download declarations here:

1) Non-liability statement
2) Data Privacy Statement
3) Declaration of participation of persons under 18 years of age



Download GPX tracks here to help your route navigation.

Download track here:

1) Official GPX track


Registration for K3 ULTRA

Anyone wishing to participate in the K3 ULTRA Ultramarathon must register and sign in by selecting a distance, entering additional data and paying the appropriate entry fee.
(Users who have registration in iRun.bg, don’t need to register again.)

After 05/09/24 no registrations will be accepted. On-site registrations are not available.

* The distance can be changed before payment is made.
* Water, medical care, aid stations, electronic reporting of results are provided for all participants at all distances.
All participants in distances 13K, 23K, 43K, 63K and 85K who have finished in the control time receive a medal – part of the Grand Slam.