The 8th Annual NorthShore Rollerski Marathon

Saturday, September 15, 2018

The NorthShore Inline Marathon organization would like to present the only rollerski marathon in the United States!

rollerski marathon duluth mn

Photo by Robert Welton

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.

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! ROLLERSKI buses depart from the DECC parking ramp off of Railroad Street from 7:00-7:15am.

Race Course

Enjoy the country’s most scenic and exciting 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 I-35 tunnels, and finishing at the Duluth Entertainment Convention Center (DECC).

Race Start Times

8:30 am – Rollerski

Registration Fees

$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 Friday’s EXPO


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


The top 3 ‘Marathon’ finishers in each gender specific class will be awarded an engraved medallion, in recognition of their impressive accomplishment, at the NSIM awards ceremony.  The Full Marathon award ceremony will begin at 4:00pm at Grandma’s Sports Garden. Awards must be picked up at this time. Awards will not be mailed. ***Awards are based off of gun time.***

Male & Female Class

Overall 1, 2, 3
29 & Under

Age Limits

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

rollerski marathon duluth mn

Olympian Caitlin Gregg – Photo by Robert Welton

Race Safety & Rules

Section 1. Rollerski Equipment
A.1 Rollerski sport equipment must be available as a commercially produced product that is available to the general public*
A.2 The recommended diameter of the wheels must should be around 100 mm
– A.2.1 – All V2 Brand Rollerskis are allowed
A.3 The distance between the axles of the Rollerskis must not be less than 530 mm*
A.4 Two ski poles with specific Rollerski or Cross-Country skiing tips must be Used*
A.5 Approved cycling helmets (ANSI and/or SNELL approved) and eye protection must be worn*
A.6 Shoes or ski boots have to be fixed on the Rollerskis with a Cross-Country
A.7 The changing of poles and Rollerskis is allowed during the competition*
A.8 Competitors are permitted to change or repair equipment during the competition but they must do this without any outside assistance other than being handed the replacement equipment or tools.

Section 2. Rollerski Clothing
B.1 Torso clothing must be worn at all times covering at least ¾ of the upper body with bibs mounted on the front unfolded and/or wrinkled in a visible fashion.
B.2 The use of gloves is permitted.

Section 3. Race Rules
C.1 Skating is not permitted for the first 70 m after the start. You must double pole.
C.2 Finishers must hold their line within the last 100 M of the finish. Excessive movement side to side will result in a disqualification.

* Race rules adapted from the Cross-Country ICR