September 18-19, 2021

Loppet Field Day & Surly Brewing Co. Trail Loppet

The Urban Trail Run and Festival
Half Marathon · Half-Half · 5K

New this year, the Loppet Field Day on September 18 is a fun-filled day of both competitive and non-competitive events for all ages and abilities. The day will start with a timed 5K trail run/walk and be followed by an untimed 1 mile and 0.5 mile trail run, before concluding with a variety of fun “trail and field” games and challenges.

Our most popular trail running event of the season, the Surly Brewing Co. Trail Loppet on September 19 is a day of rugged, urban trail running in Minneapolis’s largest regional park. The Half Marathon and Half-Half (6-8 miles) races in Theodore Wirth Park are the ultimate urban trail running experience, and all participants will be greeted after the race with music and a free Surly Brewing Co. beer (with a valid ID).

  • Half Marathon
  • Half-Half (6-8 miles)
  • COVID Preparedness: Please review the entirety of this COVID Plan. Highlights include masks in the start chute, smaller sub-waves (know your start time which will be available by Fri noon, Sept 17. As we have for all of our events, we reserve the right to make changes (even last minute) in various race elements in the interest of our community’s well-being.
  • Updated (9/15/21): Start Times and Waves: To help maintain distancing at the start and alleviate crowding on the trail, we will be sending runners off approx every 5 seconds in an individual time trial format. Start times will be assigned every two minutes, e.g. 8:30, 8:32. We expect Saturday’s start times to be from 8:30am-8:45am, Sunday’s half marathon from 8:30am-9:10am, and Sunday’s Half Half from 9:30am-10:10am.
  • Field Day: Activity Map, Info Sheet
  • New (9/15/21): Instructions for using RaceJoy! And GPX files have been added to the map section below.
 StatusStarting 6/18/2021Starting 7/18/2021Starting 9/3/2021Starting 9/17/2021
Half MarathonOpen$60$75$95$105
Half HalfOpen$50$65$85$95
Field Day (5K)Open$30$45$65$65
Field Day (1 Mile or Half Mile)Open$10$15$20$20
Register Now!

Registration and transaction fees are non-refundable, including in the event of delay, rescheduling, or cancellation of an event or program. An event or program registration is not transferable to another person or another event for any reason, including injury. Participating under another person's name will result in disqualification.

A Note About the Data We Collect

Proceeds from the Loppet Field Day & Surly Brewing Co. Trail Loppet benefit the Loppet Foundation. Learn more about the Foundation's mission, vision, and values.

DISTANCE CHANGES: The deadline to make race distance changes is 4:00pm on the Friday a week before the race. After that, a registrant wishing to change to a shorter distance will need to register and pay the full fee for the new race distance. If you are dropping from the Half-Marathon to the Half-Half, please indicate your new pace preference in your email to

Packet Pickup

  • Friday, September 17, 4-7pm: Trailhead
  • Saturday, September 18, 7am-12pm: Trailhead
  • Sunday, September 19, 7am-10am: Start Line of Half Marathon/Half Half

Loppet Field Day Schedule (Saturday)

Surly Brewing Co. Trail Loppet Schedule (Sunday)

  • 8:30am-9:15am (depending on wave): Half Marathon
  • 10am / to follow the Half Marathon (tentative): Half-Half (6-8 miles)

The following activities will be included as part of the Loppet Field Day activities:

  • 1 mile run
  • Half mile run
  • 50-100m dash (hill sprint & flat sprint)
  • Potato sack race
  • Agility course
  • Frisbee golf throw 
  • Bean bag toss
  • Shoe kick
  • Soccer dribble and shoot
  • Hula hoop contest
  • 4-square
  • Log rolling presented by Key Log Rolling

The courses follow a mix of paved and non-paved trails, so wear appropriate footwear. Compared to the Sitka Salmon Shares CityTrail Loppet, the Surly Brewing Co. Trail Loppet half marathon course features slightly more difficult terrain while the Half Half and 5K are comparable.

Course Maps

We have three options for you to view the course maps for the 2021 Loppet Field Day & Surly Brewing Co. Trail Loppet:

RunSignUp Maps

Google Maps

.GPX Map Files

Here are the .GPX files for download if you use those on your smartwatch or device. Be aware that the variations between creating lines on a google map satellite image as well as unique readings from various GPS trackings don’t always line up exactly and the .GPX file may not be perfectly calibrated on the trail. However, the course will be well marked, and these files should give you a decent idea of the course.

Note that except for race day you can’t do the section of the course that goes on the Par 3 golf course near The Trailhead (It will only be closed for the race).

Course Markings

The course is well-marked with a combination of blue ribbons, blue arrows, and flour. However, know that there are many intersections and runners are responsible for staying on course.

Aid Stations

Aid stations will have water and energy to keep runners hydrated on the course.

Cut-off Times for Sunday’s Half Marathon and Half Half

Racers may choose to finish, but course marshals and volunteers located at and before the 45 North Aid Station (mile 9 of the Half Marathon and mile 3 of the Half Half) will be released from their positions at 12:00pm. There is no cutoff for the 5K or youth races. We set these times to be sure our volunteers aren’t out all day long but all participants still have plenty of time to finish.

Transportation, Parking and Bike Corral

We encourage participants and spectators to bike, walk, or jog on race morning. There will be a monitored area at the Start/Finish where you can check in and/or lock your bike to racks.

For those who must drive, we encourage carpooling. All participants and spectators should park in the nearby Mortenson parking lot. We expect the Trailhead lot to fill quickly. It is a short walk or jog from the Mortenson parking lot to the start area. Please do not park in any reserved spaces at Mortenson.


Participants must register by September 10 in order to receive a race t-shirt (pictured below in women’s and men’s sizing). If you register after the 10th, you may ask after the race if there are still shirts available.


Locally-made, handcrafted awards will be given to the top three overall men and women in the Half Marathon, Half Half and 5K.

Top three age group winners for men and women will be broken out in the final results lists for 19 and under, 20-24, 25-29, 30-34, etc.)

Social Media Contests

The winner of EACH social media contest will be awarded two tickets to the Minnesota United FC game on Sept. 25.

Use #SupremeExtreme / #SurliestRunner AND tag the Loppet Foundation and Surly Brewing on Instagram, Facebook, or Twitter.

  • Twitter: @Loppet @Surlybrewing
  • Instagram: @loppetfoundation @surlybrewing
  • Facebook: @loppet @surlybrewing

The Loppet will select the winners. Your social media profile and/or the post itself must be “public” so the Loppet can see the post.

The subject of the post will win the prize, not the person who created the post (unless that is the same person). If you are submitting a story about someone else, you must have the runner’s number and/or name OR the name of the volunteer and/or a picture of them and the spot where they were stationed.

Supreme Extreme Runner/Volunteer

Share your stories and/or photos of the trail! It can be yourself, other runners or volunteers! We are looking to capture some Supreme Extreme stories/pics about anything awesome on the trail. It might be an incredible run, a crazy outfit, an awesome act of kindness or sportsmanship, even just a kind word. Did you fall in the creek and number 44 pulled you out? Did you see #333 roll down one of this course’s “treacherous gullies” and pop right back up? Did a volunteer say just the right word to you? 

Surliest Runner

This is the runner that took their run to the next level and came out with more bumps, bruises, and likely some blood than they started with. Cheating is absolutely unacceptable.


All registrants will be entered to win a 3-night stay at the beautiful Heartwood Resort in Trego, Wisconsin — perfect for your outdoor adventure getaway. Two participants from the Half Marathon, Half Half, and 5K will be randomly chosen and contacted after the event.

All volunteers will receive race swag and one free beverage or beer (with valid ID). Please e-mail with questions.

2021 Results & Photos

2020 Results & Photos

2019 Results & Photos

2011 Results

Join the Adventure!

Detailed sponsorship opportunities and packages are available.
Please contact the Loppet Foundation Sponsorship Manager:

Title Sponsor

Official Apparel Provider

Lodging Sponsor

Gold Sponsors

Silver Sponsors

Bronze Sponsors

The Loppet Foundation
1301 Theodore Wirth Parkway
Minneapolis, MN 55422