The 23rd Annual NorthShore Inline Marathon

Saturday, September 15, 2018
inline marathon duluth mn north shore inline skating rollerblade k2

Photo by Darlene Prois

What You Get

Every registered athlete gets a short sleeve 2018 race shirt. We typically do tech tee/dry- fit style shirts. We will announce the shirt style soon, stay tuned!

New for 2018, we are extremely excited to have finisher medals for every finisher for the first time in NSIM history!! These will be a custom engraved metallic medal with printed ribbon to hang around your neck as you cross the finish line. Stay tuned for design concepts and images.

Thanks to our food and drink sponsors!

With our unique point-to-point race course, we bus all athletes to the start line and ship the gear bags to the finish!

Event Course

Enjoy the country’s most scenic and exciting skating and rollerski event along the beautiful North Shore of Lake Superior! The 26.2 mile marathon begins just south of Two Harbors and continues along Scenic Hwy 61, rolling through the Interstate-35 freeway tunnels, and finishing in the heart of the city at the Duluth Entertainment Convention Center.

The entire course is completely closed to outside traffic and all the pavement on the course has been redone within the last 5 years for maximum smoothness!

Age Limits

Skaters under 13 years of age must have their entry approved by the Executive Director.

Wave Placement

In order to increase safety and ease crowding, Inline Marathon skaters must register for the correct wave based on past performances and projected finish times. Please see the wave placement guide below and select the corresponding wave during the online race registration process. Wave changes after submitting online registration is available on our registration site ( All wave changes are subject to a $10 processing fee.

Wave Placement Guide
WaveEstimated finish time
AdvancedWave 11:12:00-1:18:00
Wave 21:19:00-1:24:00
Wave 31:25:00-1:30:00
RecreationWave 11:31:00-1:45:00
Wave 21:46:00-1:59:00
Wave 32:00:00-3:30:00


Marathon: Advanced and Recreation Waves

$79 through May 31st
$89 through June 30th
$99 through July 31st
$109 through August 31st
$119 through September 12th – 11:59 PM CDT
$125 at Race Expo – Saturday, September 14

$10 wave change fee

$10 race change fee (marathon to half marathon)


The race will be held rain or shine. There are no transfers of race packets or bib numbers and no refunds.

For 2018, we are rolling out a new add-on registration option called the Race Insurance Package. This $15 feature includes no questions-asked race refund or deferral to 2019, and free wave or race transfer.

How to purchase Race Insurance Package: When you register for the 2018 NorthShore Inline Marathon or Run, additionally select the Race Insurance Package option for $15 and you will be automatically enrolled!

**IMPORTANT** Please review the full details at

Photo by Robert Welton

Race Teams/Skate Clubs (Inline Full Marathon)

Team Divisions: Male, Female, and Co-Ed*

Any Race Team, Skate Club or other formal or informal group of skaters can create a team to compete in this Male and Female division. Requirements are:

  1. The total times from the top 5 skaters in each team will be combined to compete for an award
  2. No Elite skaters are eligible for this award

*Co-Ed must have at least 2 Male and 2 Female, and a total of 5 skaters or more.

Team Rules

All Teams must submit a roster identifying all members and the Team Captain (contact person). Only non-elite skaters may participate in the Team Challenge. Each participant is only eligible for ONE category: male, female, or co-ed. (Please complete the form below by August 22, 2017).

Team Challenge Entry Form

Team Champion

Quad Skaters

Quad skaters are eligible for overall quad skater awards (Male and Female) in the Inline Marathon race. Register as a quad skater during the registration process.

Transportation to the starting line

Buses begin loading from the DECC parking garage area on Railroad St. for the Half Marathon events at 5:00am, Full Marathon event buses begin loading at 7:00am. Please board promptly to insure that everyone arrives at the start lines on time. There is no parking available at the start lines.

Half Marathon skaters and runners: 5-5:45am
All elite skaters and rollerski: 7:00-7:15am
Waves: Advanced 1-3 7:00-7:30am
Waves: Recreation 1 & 2 8:00-8:15am
Waves: Recreation 2 & 3 8:15-8:30am
NO Rec Wave 3 skaters are allowed to board the buses until 8:15am.

For those coming from Two Harbors, it is permissible to be dropped off at the Two Harbors Sonju car dealership and walk or skate to the start line.

Gear Bag Trucks

Gear bag trucks will be at the start line for the half and full marathons so you can bring items to the start (sweatshirt/jacket, shoes, warm-up gear, food, etc…) and they will be delivered to the finish line by the time you are finished with your race. This service is included in race fees for Inline Marathon (Elite, Advanced and Rec waves), both Combined race starts, Rollerski Marathon, Inline Half Marathon, and Wheels Off Half Marathon Run.

  • Inline Half Marathon gear bag truck will be in front of the start line and and will depart at 6:30 AM.
  • Wheels Off Half Marathon Run gear bag truck will be behind the start line (near bus drop-off area) and will depart at 6:45 AM.
  • Elite and Rollerski gear bag truck will be in front of the start line and will depart at 8:30 AM.
  • Advanced and Rec wave gear bag truck will depart at 9:15 AM.

PLEASE make sure that you drop your gear bags off in the correct truck before the posted departure time. If you don’t get you gear back in the truck in time, notify a race volunteer and it can be delivered to the finish line/DECC. However, late drop bags are not a priority and may take hours to reach the finish line.

We are not liable for lost or damaged items. Please do not include anything valuable or fragile in your drop bag.

inline marathon skating duluth mn rollerblade k2 skates

Photo by Robert Welton

Marathon Start Sequence

8:35 – United States & Canadian National Anthems
8:40 – Clear the course
8:43 – Call to start
8:44 – 60 second warning
8:45 – Elite Open Men & Elite Masters Men 30-39
8:50 – Elite Masters Men 40-49
8:55 – Elite Masters Men 50+
9:00 – Elite Open Women & Elite Masters Women 40+
9:05 – Advanced Wave 1
9:08 – Advanced Wave 2
9:11 – Advanced Wave 3
9:14 – Combined Skaters
9:17 – Recreation Wave 1
9:21 – Recreation Wave 2
9:24 – Recreation Wave 3

Half Marathon Start Sequence

6:35 – United States & Canadian National Anthems
6:40 – Clear the course
6:43 – Call to start
6:44 – 60 second warning
6:45 – Half-Marathon Mass Start
7:00 – Wheels Off Half Marathon Run

Photo by Robert Welton

Race Bibs

If you would like your name printed on your bib you must be registered by Friday, August 24th.

Do not fold, wrinkle, or alter these numbers. The large bib should be pinned to your chest or abdomen area or right hip.


(Age groups only, see Elite page for Elite athlete awards categories)

The top 3 Inline Marathon finishers in each gender specific age class will be awarded an engraved medallion, in recognition of their impressive accomplishment, at the NSIM awards ceremony at Grandma’s Sports Garden.

(NEW in 2018) NorthShore Skate Awards (Inline Half Marathon, Inline Marathon, National Championship, Combined and Rollerski events) are at 2:30 PM at Grandma’s Sports Garden.

**Awards are based off of GUN TIME, not chip time.**


Photo by Robert Welton