Schedule of events

Friday, September 14:
  • Expo & Packet Pickup | noon – 9pm
  • Kids Sprints 5:00pm Harbor Drive-Free
Saturday, September 15:
  • 6:45am-Inline Half Marathon & Combined
  • 7:00am-Wheels Off Half Marathon RUN
  • 8:00am-Tunnel 10K RUN
  • 8:30am-Rollerski
  • 8:45am-Full Inline Marathon
  • 9:15am-Combined Skate
  • 2:30pm-Inline Awards-Grandma’s Sports Garden

Registration Fees

2018 Registration Prices
Inline Marathon – Elite Inline Marathon Rollerski Marathon Inline Half Marathon Combined – 39.3
 Through May 31 $119 $79 $79 $69 $119
June 1-30 $129 $89 $89 $69 $129
July 1-31 $139 $99 $99 $69 $139
August 1-31 $149 $109 $109 $79 $149
September 1-13 $159 $119 $119 $89 $159
Friday’s EXPO $175 $125 $125 $100 $175

The race will be held rain or shine. There are no transfers of race packets or bib numbers and no refunds without Race Insurance Package.

In 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 Duluth Entertainment Convention Center (DECC) is located on the Duluth Waterfront, exit 256b from I-35. The address is 350 Harbor Drive.  From the South take I-35 north and exit at Lake Ave. & 5th Ave. West (exit 256B), at the stoplight turn right, take the next immediate right down to Railroad Street, turn right onto Railroad Street then right into the DECC parking lot. From the North use Lake Ave. (exit 256B), at the stoplight turn left onto Canal Park Drive, immediately get into the right lane and turn right onto Railroad Street. After driving under skywalk turn left into DECC parking lot.


Friday and Saturday daily parking at the DECC is available for a $5 fee. The DECC also offers overnight parking for single vehicles ($10/night) & RV’s (electric hook-up ($35) or non-electric sites ($25)). More information is available at or by calling (218) 722-5573, ext.283. There is some free parking in the area however, it is limited. No parking will be available at the start area! All participants, other than those staying in Two Harbors, are strongly urged to take the shuttle buses to the start line.

Race Packet Pickup (Friday)

Friday, September 14th | noon – 9pm

Pioneer Hall at the Duluth Entertainment Convention Center (DECC)
350 Harbor Drive | Duluth, MN

All participants must show a photo ID to pick up their race packet, please make every effort to pick up your own packet.

Note: Daily parking in the DECC lot costs $5.00. Inline kids sprints starting at 5:00pm on Friday on Harbor Drive so expect traffic delays.

If you are not able to pick your packet up in person, you have a few options:

You may have someone else pick up your packet for you if you have in writing permission along with their confirmation email registration.

For late comers, race packet pickup also available on Saturday morning in the parking garage at the bus loading area from 5:00am to 8:30am, located on Railroad St.

For $25 (within the United States) you can have your packet mailed to you prior to the race. Please send a check with a note including the address where you want your packet mailed to: NorthShore Inline Marathon, 525 Lake Ave S., Duluth, MN 55802. All requests for this service must be in by September 1, 2017. 

Grandma’s Sports Garden Pasta Buffet

All you can eat pasta buffet Friday 3-9:00pm and Saturday 4-7:00pm during the awards ceremony.

Full bar and menu also available.

Kids Sprints

The 19th Annual Kids Sprints will be held at 5:00 p.m. on Friday Sept. 14th on Harbor Drive on the east side of the DECC. Registration starts at 4 p.m. The kids sprints are free to all kids 14 and under.


We need your help to make the events a success. Volunteers are needed on Friday, September 14th and Saturday, September 15th. Lend us a hand and get a great short sleeve volunteer T-shirt. Sign up!


2019 Registration

Registration for September 14, 2019 NSIM EVENTS will be available at the Expo and on our website until Monday, September 17th, 2018 at 11:59 PM CDT.


The NorthShore Inline Marathon is in its 23rd year. Legend has it that the event started with a casual conversation among local athletes at former Olympic skier George Hovland’s house. The event launched in 1996, with 1,500 skaters taking part. The race quickly became the largest in North America, attracting world champions and future Olympic medal winners. Today it is the world’s 4th largest inline race, behind the likes of Berlin, Germany, and Seoul, South Korea.

The NorthShore Inline Marathon has been recognized repeatedly for excellence. In 1997, it was featured on the cover of inline skating authority Fitness & Speed Skating Times out of Pompano Beach, Florida. In 2000 and in 2001, the magazine named the NorthShore Inline Marathon as the best inline race in the world. It has the distinction of having been the only inline World Cup event held in the United States, and currently hosts the National Championships.

The 26.2-mile full marathon basically follows the famed Grandma’s Marathon course, with one difference – downtown Duluth’s brick-lined Superior Street is NOT skater-friendly, so the athletes duck into the I-35 tunnels at Lemon Drop Hill. They cross the finish line just inches from Lake Superior, in front of retired ore ship William A. Irvin.

To offer the beautiful course to other active life styles, the board approved the addition of a Rollerski event established in 2011. The NorthShore inline weekend also became host to the “Wheels Off “half marathon run beginning in 2012 as well as the Minnesota Power Tunnel 10k run in 2013. So all in all the 22nd annual inline weekend events consist of:  kids sprints, half inline skating, half marathon run, full marathon rollerskiing, full marathon inline skating, a 10k run and to round out the events the “combined event” which participants skate the half marathon as well as the full marathon for a total of 39.3 miles on inline skates!