Multi Island Run 


JULY 3RD - 2021

Welcome to SMIR

SMIR is a world unique experience in the outer Stockholm archipelago. But it is also an ultra marathon. Run in teams of two. Across 8 of the bigger islands. All in one day!


The amazing story about The Original 10

On July 27th 2017, a hand-picked group of brave runners set out on an amazing journey. They had one goal. To attempt the crazy idea of running the entire Stockholm archipelago in one day. Forever legends, the Original 10 proved it could be done!

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SMIR2020 - the fotos

Enjoy some of the awesome SMIR fotos by clicking the image below.


Also, check out the winner of the mixed race Frida Södermark's amazing Race Report.


Click on the image above to see all the pictures from SMIR2020

Founder and creative idea


Challengize is a social, modern and 100% digital team health challenge where all forms of activities count. Cycling or yoga. Walking or aerobics. Tennis or golf. They all count and the smart Challenge Points system rewards you and your team for who you are, and what you have done. Put focus on healthy everyday exercise, team-building and in creating a winning corporate culture with your colleagues across the entire organisation, no matter where in the world they are. Welcome to Challengize!

Besides being a totaly awesome corporate health challenge, we love to create what we call experience races. Races where the experience and team aspect is main focus, and not necessarily the time.

Sponsor and friend


Vitamin Well offers a modern, healthier and tasty alternative to sodas and sugary juices. A beverage that is tasty, nutritious and contains less sugar.

Vitamin Well will offer refreshing drinks to all participants on the SMIR boat.

Partner and friend


Inspired by our medical work with Manuka Honey, we created a line of athlete nutrition products that meet the needs of the elite athlete and the recreational fitness enthusiast.

During SMIR all runners will be offered Manuka sports gels on the SMIR boats.

Go to Manuka Sports

Sponsor and friend


ALUKIN boats offer practical boating for active people in the archipelago. Made with Swedish craftsmanship in Roslagen, just a few minutes from the SMIR start.


Alukin boats will transport participants stepping out of the race to the next stage.

Partner and friend


AB Kartverkstan founded 1988 is a modern surveying consultant company based in Tyresö. We offer different types of surveying, stakeout,  CAD work, mass balance, area measurement and much more.

Kartverkstan will offer all SMIR participants proper maps over each island making navigation to the goal even easier.

Go to Kartverkstan

Sponsor and friend offers you all the races in Sweden gathered in one and the same place. Search for a race, register, collect your favourite races and share your latest adventure.


In SMIR 2018 will be our official time keeping partner.

Partner and friend

Established in 1847 by brewer J.C. Jacobsen, Carlsberg Group is one of the leading brewery groups in the world today.

In SMIR the Carlsberg finisher beer at Utö Gruvbryggan after running 75km over 8 islands is probably the best beer in the world! 

Worth running for!

Go to Carlsberg

SMIR is a Challengize product



For all the lates SMIR news

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