7th January 2023

PolarNight Halfmarathon

Join an Arctic running experience in the Polar Night! Experience Norway’s largest winter race with approximately 2000 runners from all over the world. The PolarNight Halfmarathon takes place in the middle of the day, but at this time of year the sun never rises above the horizon. In the absence of the sun there will be darkness, occasionally interfered by the amazing display of colours that is so special for this time of year. Indeed, a trip to Tromsø to run the PolarNight Halfmarathon is also a great opportunity to hunt for the Northern lights (Aurora Borealis).

You can choose a distance after your level and ambition: Ishavskraft Marathon, Halfmarathon, Mørketidsmila (10K) or Mørketidstrimmen (5K).

Be part of the Ishavskraft Marathon in 2023!

Since 2021 the PolarNight race includes a full marathon distance! While our other races (Half-marathon, 10K and 5K) take place in the urban areas of Tromsø, the Ishavskraft Marathon leads runners to the secluded outer coastline, where it is truly dark. This marathon is not for everyone. A cold and potentially severe climate makes everything much harder. For those reasons there are certain requirements for participants that wish to attend this race. This is no ordinary marathon. This is an adventure.

If you’re looking for that wild and unique challenge for your bucket list, this is it.

Mørketidstrimmen (5K) – 2023
Ishavskraft Marathon – 2023
PolarNight Halfmarathon – 2023
Mørketidsmila (10K) – 2023

Information related to the race

Before the race

Bib pick-up & Information

You can collect your bib on race day from 9:00-14:45 at the City hall, Tromsø city center. NB! You need to present the confirmation with your bib number, which is send to you about 2 weeks before the race and your ID.

You also find an information desk where you can ask questions and receive help.

There is also a shop at the City Hall where we sell our official PolarNight Collection 2022 from 9:00-16:00 o’clock on raceday.


Age limits

We calculate your age and category by birth year, not birth date. This means that as long as you will be 18 in the year of the race, you can participate in the marathon distance, and so on. 

Polar Night Halfmarathon:    5k- no age limit//10k- from 12 y.o//halfmarathon- from 15 y.o // marathon 18 y.o//

Entry fee

PolarNight Race

Sign up for your Arctic adventure HERE.

Entry Fee until 28.02.2022
From 1.03.2022
From 1.07.2022
From 1.11.2022
From 1.01.2023
Mørketidstrim (5km)
 kr 325,00
 kr 375,00
 kr 425,00
 kr 500,00
 kr 600,00
Mørketidsmila (10km)
 kr 475,00
 kr 525,00
 kr 575,00
 kr 650,00
 kr  750,00
PolarNight Halfmarathon (21km)
kr 575,00
kr 625,00
kr 675,00
kr 750,00
kr 850,00
Ishavskraft Marathon
kr 1.300,00
kr 1.400,00
kr 1.500,00
kr 1500,00
kr 1500,00


Cancellation of participation

Your registration is personal and binding. By registering for the race you accept our terms & conditions, and we do not refund nor change names on fulfilled registrations. Runners who participate with someone else’s startnumber will be disqualified.

If you cannot participate due to injury/illness you can send us an email (info@msm.no) within a week after race day, together with a medical certificate from your doctor/physician stating that you are unable to attend. Then we will move your registration to next years’ race (NB! We charge a fee of 100,- NOK to move your registration, which also has to be paid within a week after race day).

Weather & Clothing

We will leave it up to the weather Gods! You can check YR or Pent for an updated weather forecast.


The weather can vary quite a bit above the arctic circle in January. Anything from a few degrees plus to some minus degrees. The good thing is that running keeps you warm! We advise runners to layer up their clothing after the temperatures and weather. If it is windy or temperatures below zero we prefer these type of clothes for winter running:

Winter tights or windbreaker pants, thin woollen longjohns or thin woollen shorts, thin woollen socks, woollen shirt, windbreaker jacket, an extra thin vest if you get cold very easily, something to cover my neck, headband/hat, and thin woolen gloves. Every year there is a big discussion at city hall when the runners pick-up their bibs- shoes with spikes or no spikes? Some years only parts of the course are covered with ice or snow, making it extra difficult to decide.

As with everything else this comes down to your experience with running in these conditions and temperatures, as well as your own preferences when it comes to race clothing. Also, do a short test run on race day or the day before to try out the conditions. That might answer you questions both about clothes and shoes with or without spikes.

On raceday

Bib, timing & results

Your personal timing chip is integrated in your start number. Please wear your number visible on your chest. Do not remove your timing chip or fold your start number, as this might cause that your time is not registered.

We use EQtiming system. The results from the distance PolarNight Halfmarathon, Ishavskraft Marathon and Mørketidsmila (10k) will be ranked. The Mørketidstrimmen (5k) runners will see their own time on the result list, but the results are not ranked. We will post a link to the results on our website directly after the race.

Your timing starts/finishes when you cross the start- and finish line.

Course records:

Polar Night Halfmarathon  – Men 01:08:27, Women 01:18:43
Mørketidsmila (10k) – Men 00:31:31, Women 00:37:57

Ishavskraft Marathon – Men 02:48:05, Women 03:28:12

Cut-off time

Max time limit for the PolarNight Halfmarathon distance is 3 hours.

Max time for the Ishavskraft Marathon distance is 5 hours. Please be aware that we introduced a cut-off after 2 hours 25 minutes at 20 km. If you do not make it to that point within the given time you will have to finish your race.

Kilometer Marks

There will be a kilometer marker for every 5km along the course. For the last 5km every kilometer will be indicated. There are race marshalls at every larger crossroads along the course. If the weather allows it, there will be burning torches along the trail.

Bag storage

Bag storage for runners is available at the City Hall from 14.00 until 18:30 o’clock. Please tag your bag with the tag from your bib number before handing it in. Please hand in your bag early to avoid queuing before start. Bags/clothes are delivered at your own risk. We do not accept larger items of luggage. Please do not leave bags, clothing or other items  in the starting area or elsewhere (besides designated bag storage), since such items will be thrown away. The organizers can not be held accountable for any such loss.

Service stations & toilets

Service stations:

PolarNight Halfmarathon: at ca. 5 km, ca 10 km, ca 16 km and at the finish. Mørketidsmila (10k): at ca. 5 km and at the finish. Mørketidstrimmen (5k): at the finish.

Ishavskraft Marathon: at ca. 10 km, 20 km, 32 km, 37 km and at the finish.

We serve water and Maxim sports drink at all service stations. At the finish we serve warm juice.

Toilets are only available at the start- and finish area. There are no toilet facilities during the race.

After the race

Prize giving ceremony & medals

Every participant that finishes the race receives a medal at the finish line.

The prize giving ceremony takes place on race day at the Scandic Ishavhotel at 19:30 o’clock.

We award the three best men & woman for the distances Mørketidsmila (10k), PolarNight Halfmarathon and Ishavskraft Marathon.

We also award the class winners for the distance PolarNight Halfmarathon. The classes are 16-17 yr/ 18-34 yr/ 35-39 yr/ 40-44 yr/ 45-49 yr/ 50-54 yr/ 55-59 yr/ 60-64 yr/ 65-69 yr/ 70-74 yr/ 75 yr and older.

Mørketidstrimmer (5k). Timing but no age categories.

Pictures from the PolarNight Halfmarathon

We have a photographer working for us during Polar Night Halfmarathon, and these photos will be published on our Facebook-page a few days after the race.  Please note that we do not guarantee that we have a photo of each runner, as the photographer will take photos from both the course and at the finishline.

For Polar Night Halfmarathon 2019 our partners Marathon Photos will take finisher photos of all the participants at the finish line. After the race the participants will receive an email with an offer for their personal photo package.

About Tromsø

Where should I stay during my visit in Tromsø?

Visit Tromsø lists most of the  hotels, Apartments, camping sites and other accomodation info HERE. Please note that even though almost all the hotels are located in the city centre, you should always check the location before booking. The hotels in the city centre are all within walking distance from the start- and finish-area of Midnight Sun Marathon, Polar Night Halfmarathon and the reindeer racing and lassothrowing during Samí Week.

How can I travel around Tromsø and the city center?

At  Troms Fylkestrafikk you will find info about tickets and bus routes in Tromsø. You can buy single tickets, tickets for 24hours, 7 days or 30 days within a specific area.

How can I travel to Tromsø?

If you are travelling from outside Norway to Tromsø, you have to fly to Oslo and take a connecting flight to Tromsø. The flight time from Tromsø to Oslo is approximately 2 hours and there are several daily flights.

If you wish to travel by sea, the Coastal steamer Hurtigruten arrives in Tromsø daily, and travelling within the region you can board the express boats from Harstad and Finnsnes. There are also bus Connections from the surrounding cities, such as Narvik, Bardufoss and Alta. Se more info about travelling within Troms region at the regional traffic site, Tromskortet.

What should I do or see when visiting Tromsø?

Visit Tromsø has info on all activities, attractions, accomodation, restaurants/cafes and shopping. Visit their homepage HERE. You can also download their app, Tromsø Official City App, so you can access all the information while you are on the go!

How far is it from the airport to the city center?

Tromsø is a small island, measuring ca 10km from north to south. The airport (Langnes) is located at the island itself, and with the airport Shuttlebus or taxi, it takes 10-15min to get to the city centre (some more during rush hour) . The airport Shuttlebus also stops outside most of the city hotels. Ask the driver and he will tell you which stop to get off at. All the city hotels are located in the city centre within walking distance from each other.

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