This is Emperor 170km.

The challenge you’ve been waiting for

Learn more about the track (click here)

The Emperor – UTVV 170 km route runs from the center of Ajdovščina, along the paved path along Hubelj towards the southern wine-growing hills, where, climbing from Dolenje, passes the scenic church of Sv. Marjeta reaches the Planina plateau and then joins the existing Emperor route at the Guerila estate. The descent to the village of Slap follows, and then, in a gentle ascent, it crosses the village of Lože (1st aid station), then the picturesque village of Goče, and in a gentle descent it reaches the village of Podraga. The first serious climb to Socerb warms up the runners for the famous 1,000-meter ascent to the top of Nanos (1,262 m), which follows after the stop in Podnanos. Through the heart of Nanos, the route past the Abram Tourist Farm and the chapel above the avalanche, and descents down into the valley, where a rich aid station on the Main Square in Vipava greets the runners. After a short flat part, the second ascent of the race follows, to Kovk (961 m). Now it’s time for one of the most beautiful ridge trails in Slovenia, the crossing of Angelska gora and the ascent to Čaven (1242 m), followed by a picturesque crossing towards Mala gora and Kucelj (1237 m). The last “thousand-meter mountain” escorts the runners towards the beautiful church on the rocky cliff, where the Vitovlje aid station is located. The route continues through Šmihel and further west past the picturesque Lijak to Škabrijel, past Ravnica and Grgarje to the top of Sveta Gora, with an illuminated shrine that acts as a beacon to show runners the way at night. From Sveta Gora, the route descends to Solkan and continues towards Nova Gorica along the border with Italy. It crosses the national border at Trg Evrope, climbs the Goriška Castle in Stara Gorica (Italian: Gorizia), and then returns to Slovenia along the path under the Kostanjevica monastery. The route continues via Panovac, through Ajševica to Renče, Cerje, and along the ridge below Trstelj to reach the picturesque village of Tabor. The Branik Castle, with the tallest still-preserved tower in Slovenia, awaits runners at 150 km. The last 20 km of the route runs along the scenic Preserje-Planina ridge. Descending past the village of Planina, the trail ends in Ajdovščina along the paved path along the Hubelj river.


The 170 km ultramarathon challenge is set in the valley where one of the most important battles of the late Roman period, The Battle of the Frigidus, also called the Battle of the Frigid River, took place in 394. The battle was fought between 5 and 6 September 394 between the army of the Eastern Emperor Theodosius I and the army of the Western Roman ruler Eugenius. With Theodosius’ victory, the Roman Empire was united under one emperor for the last time in history. Also, the victory of Theodosius brought the final religious dominance of Christianity in Europe.


Enough about history, let’s go for a run in nature! But we will make sure that you learn a lot more about the stories from this famous battle. And also that after the 170 km you become a real Roman Emperor.




Registration by date Price
31.10.2022 130€
31.12.2022 140€
28.2.2023 155€
14.4.2023 165€


Group registration

Number of people Discount
5 or more 5%
15 or more 7%
25 or more 10%




  • E4 (46 km) Vipava – 12 h (at 07.00 – Satruday)
  • E10 (123 km) Renče – 33 h (at 04.00 – Sunday)
  • Finish (170 km) Ajdovščina, 46 hours (at 17.00 – Sunday)


Aid Station – AS Km Km from last AS
Ajdovščina 0 0
Lože 11,5 11,5
Podnanos 22,3 10,8
Nanos 31,7 9,3
Vipava 46,4 14,7
Otlica 60 13,4
Mala Gora 70 10
Vitovlje 79 9
Grgar 91,6 12,5
Gorica 106,2 14,2
Renče 123,3 17
Cerje 130,5 7,2
Tabor 144,1 13,5
Branik 152,4 8,3
Planina 165,4 12,9
Ajdovščina 171,6 6,1





  • Several refreshment stations are located along the trail (see trail profile) with water, energy drinks, sugar, fruit, light food, etc.
  • Drinks, light meals, and a warm meal will also be available for runners at the finish line.
  • The track has several checkpoints.


Upon receipt of BIB numbers, the runners can get 3 designated bags for personal equipment.

The runners can retrieve a bag with personal equipment

  • 1st bag for UTVV 170 at S5 – Otlica (58 km)
  • 2nd bag for UTVV170 at S10 – Renče (123 km )
  • 3rd bag will wait for you in finish area

The bag must be submitted at the BIB distribution in Ajdovščina on Friday at least one hour before the start.


170 – Emperor 

BIB number always visible


Water bottle (camel bag, bottle, soft flask …)


Drinking cup


Survival blanket


First aid (bandage, gauze, patch)


Wind jacket




Mobile phone


Headlamp with spare battery


Running shoes


Clothing suitable for winter conditions (from -3° C to 30° C), in case of strong wind (speed over 100 km/h)


Sun protection


Energy food


Running poles


+”  Mandatory gears

o“ Recommended gears

o* Mandatory for slower runners

The obligatory equipment shall be checked at the race number bibs collection. Race number won’t be given if something is missing. If the required equipment is not complete or is not shown by runner, immediate disqualification follows. Random checks shall be made along the race route.


  • Transport of runners who drop out at the control point / aid station to the finish area.


  • personalized bib number including RFID time keeping-tag and GPS tracker
  • starter pack with technical SportHG t-shirt
  • drop bags (transitions) for Emperor and Centurion race
  • transition bags will be transported back to the finish line in Ajdovščina
  • aid stations with a variety of food, approximately every 12 km with drinks and food
  • showers and changing room facilities next to the finish area
  • a hot meal in Ajdovščina
  • roman medal of honor for all finishers at each race
  • roman Emperor`s ring for Emperor`s finishers
  • medical first aid in the finish area and at specified aid stations
  • finisher’s certificate downloadable from the dedicated online repository
  • live timekeeping, interim times, and results
  • a hot meal during the race in Otlica (Emperor and Centurion), Renče (Emperor)
  • pick up each runner that drops out at aid stations


Please click the link to learn more: https://ultratrail.si/rules-and-registration/



up to 35 years up to 35 years
36 to 55 years 36 to 55 years
over 55 years over 55 years


The first three in general category will be awarded trophies and prizes.

The organizer reserves the right to make changes.



The nature, trails and views are breathtaking  it was the perfect choice for my 1st 100 miler. Also organized very well and the volunteers were very helpful as well.

Andraž Renko, Slovenia

Emperor, 100 miles

The people, the nature with the beautiful trails, the organization with their volunteers…. they create an unique atmosphere during the whole event..!
Love to go back again ❤️
Thanks and greetings!

Chris Van Beem, Holland

Emperor, 100 miles

Awesome race, awesome places, the nature, the mountains… so everything. The UTVV staff were also amazing. Thanks for the smiles 

Timi Losonc, Hungary

Centurion, 100km (2019 winner)


Male Female
1. Anže Sobočan (SLO) – 22:13:13 Martina Dvorakova (CZE) – 26:13:03
2. Andi Mamić (SLO) – 23:41:13 Claire Bannwarth (FRA) – 27:10:05
3. Niko Golob (SLO) – 23:58:17 Mahya Karbalaii (IRN) – 27:52:11
Male Female
1. Roman Ficek (POL) – 20:00:24 Timea Losonc (HUN) – 28:21:48
2. Galen Reynolds (CAN) –  21:43:42 Anita Szimandl (AUT) – 29:05:29
3. Matej Ivančić (CRO) – 22:30:42 Mladenka Buić (CRO) – 39:08:45
Male Female
1. Ivan Hrastovec (SLO) – 21:04:21 Francesca Canepa (ITA) – 26:21:46
2. Jarek Gonczarenko (POL) –  21:49:05 Anita Szimandl (HUN) – 29:38:47
3. Andi Mamić (SLO) – 22:26:30 Marija Trontelj (SLO) – 30:03:10


Roman Ficek (POL)

Roman Ficek (POL)

20:00:24 (2021)

Martina Dvorakova (CZE)

Martina Dvorakova (CZE)

26:13:03 (2022)