Zumbro 100 Ultra Marathon

Meet Our Sponsors

Along with our volunteers, our sponsors are the life-blood of our event.  We would like to thank all of our wonderful sponsors for their ongoing support.  Please be sure to scroll down and see all of our fantastic sponsors.


There is no doubt, Minnesota is blessed to have many great independently owned running stores – TC Running Company is one of them but the difference at TC Running Company is their unparraled interest and support of local trail and ultra-running.  Thank you TC Running Company for your ongoing support!


TC Running Company endeavors to meet the needs of a variety of runners including local middle and high school athletes competing in cross country and track & field, parents of student athletes, college runners, post-collegiate, and competitive runners. We’re also the choice of several local running groups such as Lifetime Fitness, ALARC, MDRA, and The Marsh (which include beginners and walkers).  Over the years, TC Running has kept its focus honed and effective. And even though we’ve grown a little since we first opened shop, we still have the same product focus, the same great employees, and the great discounts we’ve been known for in the past. Our efforts have always been locally based, and we will stay true to those roots as part of our commitment to quality service and helpful customer relationships. We invite you to stop in today and experience the kind of personal attention and sound running advice that only TC Running can provide. We look forward to meeting you!



With us and many other Minnesota ultra’s since the beginning – Hammer Nutrition’s ongoing gererosity has earned them our unwavering loyalty and support.  Thank you Hammer Nutrition for everything that you do for our events.

You may think that honest, customer-first businesses selling legitimate products have become extinct. Hammer Nutrition is a refreshing exception – No hype, just great products and service. Our longevity, sterling reputation and devoted following amongst serious endurance athletes is unrivaled in the marketplace for four reasons: 1.) Extremely effective products, 2.) Superlative customer service, 3.) Volumes of free knowledge, 4.) Unlimited access to our experts. Since 1987, our passion has been helping serious endurance athletes like you reach their highest levels of athletic performance and physical health safely, naturally, and legally, one completely satisfied client at a time. Twenty years later, this is still our top priority. Hammer Nutrition has always been a huge supporter of the Afton Trail Run, we are all big believers in Hammers products and grateful for their support, year in and year out.



CCES owner and local ultrarunner Jason Husveth has been a long time supporter of local trail / ultra-running and the Zumbro Endurance Races. We thank Jason and CCES for providing detailed course mapping for the Zumbro 100 and Midnight 50.

Critical Connections Ecological Services (CCES) is a natural resource and ecological restoration consulting firm based in Marine on Saint Croix, Minnesota.  The company was originally incorporated in 2000, with the goal of providing the highest quality scientific expertise and innovative environmental solutions to local municipalities, state and federal government agencies, and select private clientele.   CCES provides a number of environmental services including large-scale natural resource inventories, greenway and open space planning and design, land cover mapping, focused botanical inventories, rare plant surveys, natural community restoration design and implementation, wetland delineations, wetland mitigation design and monitoring, and technical/scientific report writing.  Furthermore, we excel at integrating detailed natural resource field data into GIS, CAD, and database software applications, enabling our clients to make cost effective and ecologically sensitive land use and land management decisions.


The Upper Midwest Trail Runners is an organization for anyone who likes to run off road. Some of us are serious ultra runners. Others are recreational runners who seldom if ever enter a race. Our members like to run on dirt, grass, gravel, rocks, mud, snow—really, any trail that isn’t paved. We want to encourage more people to run trails and have fun before, during, and after runs. Our members support and conduct races and other running activities. Because we appreciate running on trails, we want to protect and support local trails and parks.

Our organization also promotes a number of trail race series offering some friendly competition throughout the running season. Members who sign up for the series can win annual prizes for overall or age-group



The Gnarly Bandit Ultra Series is a series of 100 Km or 100 mile ultra trail races throughout the upper Midwest with a pot of gold at the end for those brave enough to make the challenge. Are you tough enough?

The Gnarly is designed to compete against yourself — officially finish each event in the calendar, and you will receive recognition from the Old Gnarly himself at the UMTR Annual Awards Fest (though he has never been spotted). This years races include Zumbro, Kettle, Black Hills, Superior and Wild Duluth.

Wilderness Athlete , focusing on the outdoor athlete, has stepped up big-time to provide a stash of cash — $600 — that will be split among the group finishing the series. Two people finish, each will receive $300, and so on. These winners will be given other WA merchandise to sponsor their trail efforts going forward, too, as official Wilderness Athlete Trail Runners.
Wilderness Athlete’s “Fuel the Adventure” performance products are unique in the category like their Blast Energy Gels. With WA, you’re gonna make way and get your finish no matter how hard the Gnarly Bandit tries to ambush you on those gnarly trails.


SCOTT, already a major player in several sports has tested the waters with a great line of trail running shoes and has had great results.  Checkout SCOTT shoes and look for their booth at our events.


Steve has been known to say that he is just a “so-so” runner but a pretty good realtor, we think both of these comments are extremely understated!  Steve has been running some pretty good times on the trails over the last couple of years and at the same time has tons of happy customers, many of whom are runners!  We like doing business with runners – they are the type of people that follow through.  If you are in the market or looking to sell,  get to know Steve on the trails and we are sure that he will be your guy.



The St. Croix Valley is a special place to live, raise families, do business, and prosper. Superb legal guidance is a valuable component of assuring the continuity of our interests and assets.  St. Croix Law provides such legal guidance for anticipated and unexpected matters.  Our sense of community is a major benefit of living in this area. The importance of discretion, trust, integrity, and accountability are perhaps higher in our lives.  St. Croix Law recognizes the value of legal counsel that knows you professionally as a client and treats you as a neighbor.

We thank St. Croix Law and Joel Button for their support of the Zumbro Endurance Run and trail / Ultrarunning as a whole in the Midwest.  In addition to his day job, Joel is the President of the Upper Midwest Trail Runners (UMTR) trail running club.  Joel continually works to improve local trail running opportunities with UMTR while balancing family, work and his own running.  If you see Joel on the trails or at an aid station, please be sure to say hi. If you ever need more support or guidance than what can be offered at an aid-station, feel free to contact Joel at St. Croix Law!


Volunteers and runners alike need to stay up for a few days to do one of these hundred milers, so good coffee is an essential!  We have teamed up with Peet’s Coffee to keep our runners and our volunteers going and spirits high! Peet’s Coffee & Tea is a specialty coffee roaster and retailer. Founded in 1966 by Alfred Peet (1920–2007) in Berkeley, California as “Peet’s Coffee, Tea & Spices”, Peet’s is especially known for its strong, dark roasted coffee, including its Major Dickason blend.  Hands down, some of the finest coffee anywhere!



Ultrarunning Magazine has been the “voice of the sport since 1981″.  Providing no-nonsense coverage of the sport, its events and its people.  You run ultra’s but don’t subscribe to Ultrarunner?  Is that even possible?


The Zumbro 100 Mile Endurance Run and the Zumbro Midnight 50 Mile Trail Race are USATF Sanctioned Events, thank you to USATF-MN for their ongoing support of our event.

USA Track & Field (USATF) is the National Governing Body for track and field, long distance running and race walking in the United States. USATF is a volunteer-driven, not-for-profit organization with a staff of professional program administrators at the National Office in Indianapolis. The mission of USATF is to foster sustained competitive excellence, interest, and participation in the sports of track & field, long distance running and race walking.

The Minnesota Association is the local branch of USATF and is a non-profit 501(c)(3) organization which depends on the support of its members to run its many programs and services. USATF Minnesota consists of its individual members, member clubs, supporters and sponsors. It is managed by a Board of Directors made up of  the four officers, the Committee Chairs (who are appointed by the President), and the member Club Representatives. If you have a USATF registered club, you are entitled to have a representative on the Board who will in turn have a vote on all matters that come before the Board. All individuals are welcome to attend Board meetings at any time. Board meetings are currently being held in odd numbered months. Check the calendar for the next meeting location and time. You can call the USATF Minnesota office at 651-330-8847 if you need directions.


RJ’s Tavern just up the Mississippi River in Hastings Minnesota helps to provide food and drink for our runners and volunteers.  Thank you RJ’s!