The Finden Marketing Tunnel 10k is one of the most unique running experiences in Minnesota. The race starts right on I-35 by the Duluth Depot, giving runners a rare chance to take over the highway before diving straight into the I-35 tunnels. The fast, enclosed stretch through the rock walls creates an echo of energy that you can feel with every step, and once you exit the tunnels you are greeted by wide views of Canal Park and Lake Superior. It is a smooth, quick course that brings together city sights, cool temps, and a race atmosphere that feels completely different from anything else in the region.
How to Walk From the DECC Parking Lot to the Tunnel 10k Start
The starting line is .1 miles from the DECC Parking lot.
To get to the starting line follow these instructions
1) park your car in the DECC parking lot (Or walk to the DECC parking lot)
2) Start walking towards Amsoil Arena
3) Walk past amsoil arena as if you were going to Bayfront Park
4) At the street turn right and walk up Harbor Drive
5) Walk until you get to the second off ramp on your left
6) You have made it to the starting line!
Click here for a Google pin
Friday, September 18th, 2026
Packet Pickup – 12pm – 9pm (DECC Pioneer Hall)
Rollerblade Health Expo – 12pm – 9pm (DECC Pioneer Hall)
Northern Lights Foundation Kid Sprints – 4:30pm
Saturday, September 19th, 2026:
5:15 am – 5:45 am Half Marathon Bussing Pickup (Next To DECC Parking Lot)
6:35 am – Half Marathon National Anthems
8:00 am – Finden Tunnel 10K Running Race Start
10k Doesn’t require bussing (Click Here For Starting Line Pin)
10:30 Run Awards
12:00 pm – Oktoberfest After Party Opens
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!
The St. Luke’s Half Marathon was my first half marathon and it far exceeded my expectations! Running down the beautiful shore and ending by the bridge was an experience everyone should have. It was a well organized race Very fun and would recommend to anyone no matter their skill level.
As someone who loves running, I must say that this race is one of a kind. I have done the Tunnel 10k for the past two years and have loved every minute of it. It’s a fun race with a really unique route. Would definitely recommend it to runners of all skill levels.
It was my first half so that was daunting in and of itself. The run views made the 13.1 go by with ease though. Would definitely recommend it to anyone that is looking for a low-key half marathon to be a part of. It was very well planned and you honestly cannot beat the route.
