Tunnel 10k Skate

September 19, 2026

6.2 Miles | Loop
This family-friendly event is a non-competitive fun skate for anyone looking for less than the challenge of a half marathon. Nearly 100% on I-35 Interstate Highway, travel through six tunnels in this unique skating experience! This race finishes alongside the famous William A. Irvin freighter as a crowd of fans cheer you on.

​This is a fantastic option for less experienced skaters and offers a relatively flat race route for those who don’t like skating on hills. This race does not have bussing and racers should park at the DECC and meet on the interstate overpass near the Depot.

WHat makes this marathon different?

Gorgeous north shore course with iconic tunnels

Gentle downhill and flat stretches that make pacing feel smooth

The unique experience of skating on a closed section of I-35 through the tunnels

Friendly fall racing atmosphere built for skaters of every level

A memorable finish next to the historic william a. irvin ship in canal park

Crisp fall temperatures that make the course feel comfortable from start to finish

Tunnel 10k Race Map

Important Times

Friday, September 18th, 2026

12:00 pm – 9:00 pm: Packet pickup – (DECC Pioneer Hall) 

12:00 pm – 9:00 pm: The Rollerblade® Health Axpo – (DECC Pioneer Hall)

Saturday, September 19th, 2026:

Bus Loading Times:

Non bussing for this race. Walk to the starting line which is located here.

Race Start Times:

7:45 am – Tunnel 10K Skate Race Start

The Rollerblade® Health Expo

Friday, September 18, 2026

Get ready to tap into the energy of race-weekend at the “Rollerblade® Health Expo,” happening Friday September 18th at the Duluth Entertainment Convention Center (DECC) from 3pm to 9 pm. It’s the perfect chance for runners registered for the half-marathon or 10k to pick up your race packet, browse gear, and fuel your final preparation for race day. With over 70 vendors it’s perfect to get whatever you need to tackle the race!

PAST RACER REMARKS

It is the best race for families. My three kids and I have been doing this race for years and we love the community. Everyone is so happy and welcoming, and we could not ask for a better location. The atmosphere is upbeat from start to finish and there is always something fun happening. It has become a tradition we look forward to every year and a chance for all of us to enjoy the day together.

Avery S.

Such a phenomenal organization to bring all enthusiasts out from all corners of minnesota and beyond! I love supporting NSIM and will continue to be a part of it’s skating team for as long as I am able bodied.
 
 
 

Colton R.

Being the Largest Inline Marathon in the US, the NorthShore Inline Marathon is an amazing race that you up the Northshore and gives you the ultimate inline skating experience this side of the globe.

If I were you, I wouldn’t miss out on this.

 
 
 

Benji W.

September 19, 2026
Duluth, Minnesota

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