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The Door County Half Marathon & Nicolet Bay 5K

The Door County Half Marathon beings at 10:00 a.m. and is run on paved surfaces in Peninsula State Park. This U.S. Track and Field certified course starts and finishes near Nicolet Beach.

The course winds through the park, giving runners breathtaking views of Lake Michigan, shaded areas through the woods, challenging hills and ever-changing scenery throughout one of Wisconsin’s most popular parks.

The Nicolet Bay 5k begins at 10:15 a.m., just after the start of the half marathon. The race begins a few hundred yards west of the Half Marathon starting line on Shore Road. Participants will follow the out-and-back course to the Eagle Bluff Lighthouse, where runners will turn around to head back on Shore Road to the finish line.

The Nicolet Bay 5k will use the same finish line as the half marathon. The new route for the 5k will make for a cleaner finishing area for both races, allowing nearly all 5k participants to finish before the half marathon runners come through, while providing amazing views of Horseshoe Island, the lake, and the lighthouse.

For more course information click here

Registration fees

Half Marathon General Closed

Registration closed
    1. Closed
      Jan 11 – Feb 28
    2. $80.00
      Mar 1 – May 1

Nicolet Bay 5K Closed

Registration closed
    1. Closed
      Jan 11 – Mar 31
    2. $45.00
      Apr 1 – Apr 28
    3. Closed
      Apr 28 – May 1


Cancellation Policy: We cannot offer refunds on entries due to injury or in the event the race is cancelled or shortened due to weather conditions. Entries may not be transferred to next year.

Registration Transfers: We do allow participants to switch races, space permitting, UNTIL APRIL 21. Participants may officially transfer a bib to another person for a $10 fee, but giving your bib to another participant is forbidden and will result in automatic disqualification.

Additional Event Details

5a4e960339631.jpgDoor County Half Marathon

Registration includes:

  • Long-sleeve Tech Race Shirt for Marathon participants
  • Awesome finisher’s medal
  • Beer or beverage and live music at our post-race party
  • Eight aid stations and full course support
  • Age group medals and division awards
  • Virtual Bag - brochures, information & coupons from our sponsors
  • The Midwest’s most beautiful half marathon course! 

Nicolet Bay 5K

Registration includes:

  • Short-sleeve tech shirt
  • Virtual Bag - brochures, information & coupons from our sponsors
  • Beer or beverage & live music at the post-race party
  • Aid station support
  • Medals for top 3 finishers in each age division
  • The Midwest’s most beautiful 5K course!

Tech Shirt Size Chart 



Run for A Cause

Runners can get a free registration to the Door County Half Marathon or Nicolet Bay 5K when they Run for A Cause!
Raise $250 for a Door County charity to earn the free registration. Click here to learn more, and email to get signed up.

Packet Pickup

(please note locations) 

Friday, May 4: At the Ephraim Village Hall, from 1 – 9 pm

Saturday, May 5:  At the Runners Concourse at Nicolet Beach, from 8-9am

On Friday, May 4,
runners may pick up their packets at the Ephraim Village Hall just north of Wilson’s Restaurant on Hwy 42 from 1 – 9 p.m. (Packet pickup on race day is at Nicolet Bay inside the park). Participants will find Door County Half Marathon gear, race information, park stickers and event passes for parking at Peninsula State Park as well as merchandise from Bay Shore Outdoor of Sister Bay and Run Away Shoes of Green Bay.

On Race Day, packets may be picked up at Peninsula State Park from 8:00-9:00 a.m. Reminder – parking is limited in Peninsula State Park on race day. Please check the transportation and parking information sections of this site for more information.

Event Schedule

  • May 5 10:00 AM CDT - Marathon Start

  • May 5 10:15 AM CDT - 5K Start

Contact Information

Event Location

Peninsula State Park, Fish Creek, Wisconsin, United States

Click here to view map