18. Bislett 24-Hour Indoor Challenge
November 22nd-23rd 2025
... Info in norwegian ..... Results 2006+ ..... Nyheter Bislett24 ...

HOTEL

We currently have no agreement with hotel in connection with Bislett 24 hours.
HERE you can see the nearest hotels with prices

Sponsors:

November 22nd-23rd 2025

Registration opens on May 1^st at 6pm.
150 starting places in regular registration - max 160 total

SIGN UP HERE (link coming)
List of participants (link coming)

Welcome

Romerike Ultraløperklubb invites to "Bislett 24 Hour Indoor Challenge'' 2025. Bislett 24 Hour Indoor Challenges will be arranged for the 18th time, and for the 8th time with Romerike Ultraløperklubb in charge of organizing the race.

Race name
Bislett 24 Hour Indoor Challenge / Bislett 24-timers

Date:
Saturday/Sunday November 22nd-23rd 2025.

Start:
Saturday November 22nd at 10:00 AM

Distances:
24 hours
100 miles registration

Status:
IAU Bronze Label
Kondis quality race

Number of participants:
Max 160
Resale of unused start numbers will be permitted when the limit is reached

Registration:
Opens on May 1st 2025 at 6 PM.

Classes:
18-20, 21-35, 35-39 and then 5-year classes as far as participants
Age as of 31.12.2025
Runners born in 2008 or later cannot participate

Entry fee:
NOK 1950 + administrations fee (NOK 20)
One time license to NFIF (athletics association) NOK 50

Prizes:
Prizes for the best overall (top 3 men/woman) + all class winners
Big (90mm) medal for all participants who run at least 150 km (men) and 130 km (woman)
Price draw from all participants

Participant t-shirt:
T-shirts in technical quality can be purchased at the same time as registration, or by 1 September at the latest. NOK 300 (our cost 400 NOK)

Arena:
Bislett Stadium
Louises gate 1, 0168 Oslo - Entry from Sofies Gate

Race director: Marit Bjerknes

E-mail Bislett 24-timers/ Bislett 24-Hour

Facebook

RESULTS 2024

In the link "special results" you will find results after 6 hours, 12 hours, 100 km and 100 miles. Only 100 miles (and 24-hour) are official results from this race.

In the spreadsheet All-results-distances-Bislett-24-hour-2024.xlsx you will find further details from the results, including results per hour.

LINK TO PICTURES CAN BE FOUND BELOW

...the best Bislett 24-hour ever

(Google translate):

In the best Samaranch style*, we unashamedly proclaim this year's Bislett 24-hour race the best Bislett 24-hour race ever.

We didn't break any records, but a record-breaking field of 174 runners and significantly more spectators than before contributed to the fact that there was at least occasionally a very high atmosphere along the indoor track at Bislett.

As organizers, we have tried to improve a little on an already good concept every year - but without shaking the concept itself. It should be a full-service event with the runners in the center, and with the involvement of the club's own runners who make this possible year after year.

The attention in the press was record-breaking, and with 24-hour live TV (DirekteSport) in addition to a lot of other media present, we have once again managed to create some extra attention for the sport we love.

None of the supposedly strongest Norwegian runners were on the starting list this year - partly because of a nearby World Cup 100km. There was therefore extra excitement surrounding who could win this year. Not unexpectedly, it was seasoned ultra-running veterans who made the most of the first few hours.

After 10 hours, the best young runners are in 8th place, Ivar Anton Kronstad (25) in the men's class and Caroline Nome (29) in the women's class. 14 hours later, both were proclaimed the youngest ever winners of the Bislett 24-hour race. What is unusual is not that two runners have such good strength, but that they manage to do it at such a young age - we are not used to that as organizers at Bislett. (Photo: Samuel Hafsahl)

All were winners at the Bislett 24-hour race, runners from 18 to 80 years old with different abilities and ambitions, but we extend a special congratulations to the 16 who ran longer than 200 kilometers - and the 101 who reached the requirement for the race's performance medal (150/130 km).

*After the Winter Olympics in Lillehammer in 1994, the Olympic President expressed that this was "the best Olympic Winter Games ever".

More than 1000 photos
More than1000 edited photos from this year's race can be found here:
Bislett 24.timers - Google Foto
Participants, press and others can use the photos freely with credit to the photographer: Samuel Hafsahl/Bislett24

Participant information 2024

B24 Participant information 2024
Self-declaration form (new)
List of approved shoes (Column Road & RW)
Participant database
B24 home page
B24 facebook
RESULTS
PICTURES from Bislett24 - Photo credit: Samuel Hafsahl/Bislett24

The race is sold out

November 23rd-24th 2024

Registration opens on May 1^st at 6pm - 160 participants
SIGN UP HERE
List of participants

Velkommen

Romerike Ultraløperklubb invites to "Bislett 24 Hour Indoor Challenge'' 2020. Bislett 24 Hour Indoor Challenges will be arranged for the 17th time, but for the 7th time with Romerike Ultraløperklubb in charge of organizing the race.

Race name
Bislett 24 Hour Indoor Challenge / Bislett 24-timers

Date:
Saturday/Sunday November 23rd-24th 2024.

Start:
Saturday November 23rd at 10:00 AM

Distances:
24 hours
100 miles registration

Status:
IAU Bronze Label
Kondis quality race

Number of participants:
Max 160
Resale of unused start numbers will be permitted when the limit is reached

Registration:
Opens on May 1st 2024 at 6 PM.

Classes:
18-20, 21-35, 35-39 and then 5-year classes as far as participants
Age as of 31.12.2024
Runners born in 2007 or later cannot participate

Entry fee:
NOK 1850 + administrations fee (NOK 20)
One time license to NFIF (athletics association) NOK 50

Prizes:
Prizes for the best overall (top 3 men/woman) + all class winners
Big (90mm) medal for all participants who run at least 150 km (men) and 130 km (woman)
Price draw from all participants

Participant t-shirt:
T-shirts in technical quality can be purchased at the same time as registration, or by 1 September at the latest. NOK 300 (our cost 400 NOK) Arena:
Bislett Stadium
Louises gate 1, 0168 Oslo - Entry from Sofies Gate

Race director:
Olav Engen

E-mail Bislett 24-timers/ Bislett 24-Hour

Facebook

PHOTOS FROM BISLETT 24-HOURS

Bislett 24-timers 2023 Google Foto
920 photos are posted throughout the day of the race.
Free use for participants, press and everyone else.
Credit: Bislett 24 / Samuel Hafsahl

Participant information

Live RESULTS & FINAL RESULTS

24-Hour total

Special results: 6-hour (unoff.) 12-hour (unoff.) 100 km (unoff) and 100-miles.

Complete list with all time results and distance results in the same spreadsheet

Bislett 24-Hour 2022

CONGRATULATIONS
We congratulate all 147 starters on their efforts. With different assumptions, you should all be satisfied with what you managed to thin out of your body this day at Bislett, alone or with supporters on the far side. Some ran the furthest, but all are winners!

The race's facebook page

PHOTOS:
400+ photos (Photo: Samuel Hafsahl)
320 photos (Photo: Bjørn Hytjanstorp)

2022 news: The course was control measured by AIMS on 23 November. and the correct distance per round is 546.5 meters - i.e. half a meter longer per round than we have previously operated with. Previous results are not corrected retroactively.

B24 PARTICIPANT INFORMATION 2022.docx

2021:

We congratulate Allan Hovda with a new Norwegian best performance (264,887 k) and Therese Falk with a new European best performance (261,170 k). Photo: Samuel Hafsahl

RESULTS 2021

RESULTS BISLETT 24-HOUR INDOOR CHALLENGE HERE: ULTIMATE.DK
Click on the runner's name to see the lap times

There are both total lists, per gender and per age group.
Own link to NM results in total and veteran classes.
See also "Special results" - with pdf lists
- The results of 6-hour, 12-hour, 100 k and 100 miles are based on the first pass after reaching the length / time.
DISTANCE PER HOURS.xlsx

Participant information

Participant information 2021 v2.pdf
Pårørendeskjema_Nextofkinform_Bislett24_2021.docx

Covid 19 / flu

If you have a cold (incl. “ordinary” flu) and / or are unsure if you have symptoms of Covid19, stay home. This applies to both participants and supporters.

At the time of writing, the infection is increasing in several places in Norway, but for the time being it is planned for events in the "usual way" - but with more extensive use of e.g. antibac than before. Use dispensers that are set out for maximum hand hygiene.

Shoe rules

The shoes can have a maximum sole thickness of 40mm (at its thickest - also for ultra-running on the track), and only one built-in carbon plate. It is the athlete's responsibility to use legal shoes on the starting line and during any shoe change. Checks can be made.

World Athletics Shoe Compliance List (as at 29 Oct.pdf

2019:

RESULTS 2019

Participant_information_Bislett24_2019.pdf

Bislett 24-Hour Indoor Challenge 2019

Registration opens on May 1st
Sold out May 2nd

We're sorry, the race is now full.
The only chance to join this year's race is to buy a starting place offered for sale if someone withdraws. We will list any places available for sale on the race website. (see the Norwegian page "Info in Norwegian")