Zumbro 100 Ultra Marathon

News and Updates

News and Updates

Welcome to the  Zumbro 100 Mile Endurance Run , the Zumbro Midnight 50 and 17 mile trail race. Join us on Friday April 10th and Sat. April 11th 2015 for the 7th annual running.


  • Interest in this years race is at an all time high.  Many of the other Spring 100′s in the country have filled and we expect Zumbro 100 to grow again this year.  Please register early.
  • Once again, the Zumbro 100 Mile Endurance Run will be the first 100 Mile race in the UPPER MIDWEST TRAIL RUNNERS (UMTR) WILDERNESS ATHLETE SPONSORED “GNARLY BANDIT ULTRA SERIES” – If you want to partake in the series and be in the running for the cash prize – you have to start at and finish the Zumbro 100.  Learn more HERE.  UMTR should be updating this information soon.
  • Please visit and use our sponsors – they are good people, companies and organizations that help to make the Zumbro races possible.
  • Run some and help at some – that is our philosophy, simple as that.  We are always looking for Volunteers, its a good thing to do and its a lot of fun.  If you are interested in giving a day of your time – please contact us!
  • As always, if you have any questions, please explore the site, most everything you will need you can find here, if you still have questions, please contact us – we look forward to seeing you on race day.

Recent Posts

Susan Donnelly Interview

In 2012, Susan Donnelly of Oak Ridge Tennessee once again came and conquered the Zumbro 100 Mile Endurance Run.  Susan won the race for an unprecedented  fourth straight time and kept her amazing streak alive – being one of only two people to complete all four editions of the race.  Susan will return for “number 5″ in 2013, purely for the love...

2013 Race Shirt

All for one and one for all… All 2013 Zumbro Endurance Run racers and volunteers will receive a high-quality long-sleeve technical t-shirt designed by John Storkamp / Rocksteady...


Running is a relatively simple sport, put on your shoes and shorts and go, but to have success at a grueling race like the Zumbro 100, Midnight 50 or 17 mile races, you will need a few things, mo matter how minimal you like to travel.  Twin Cities Running Company carries the best selection of specialized trail and ultrarunning gear in the Twin Cities, heck the...

10 Reasons to Run the Zumbro 100 Mile Ultra Marathon

Republished below is a great article that was featured on one of our  past finishers blogs, Jordan Hanlon +26.2.  Read his entire article below and feel free to follow the link to check out Jordan’s blog.  Thanks Jordan for the kind words and great article.     Looking for a 100 mile race to run?  Here are 10 reasons to run the Zumbro 100 mile race....

2012 Volunteer Thank You Letter

2012 Race Recap in Brief

We cannot thank our fantastic runners, volunteers and sponsors enough for making this years race a success – results are available here http://www.zumbro100.com/results/2012-prelim-results/.  Stay tuned for much more on the website, Facebook, local and national media and running publications – below is a quick recap and some highlights from this...

2012 100 Mile Finishers Buckle

All 100 mile runners who finish within the 34 hour time limit will receive one of these handsome belt buckles.  The picture on the buckle not only represents the large abundance of grazing Ibex which are so prevalent in the area but more importantly represent what it takes to get through a tough 100 mile trail race – a group, support, volunteers, fellow...

2012 Race Shirts

We are all in this together… All 2012 Zumbro racers and volunteers will receive a high-quality long-sleeve technical t-shirt designed by John...

New Zumbro Website Is Here

After much time and labor, the new Zumbro website is finally a reality!  Take a look around and check things out, we hope that finding the information you are looking for is easier than ever.  Stay tuned because we just went live and we plan on adding a whole bunch more content, photos etc.  Thanks, and we look forward to seeing you at the...