Saturday, Sep 12, 2015 @ 7:00 AM

The Hennepin Hundred

Sinnissippi Park Road

Sterling, IL 100 Miler, 50 Miler, 100M Relay

This Event Took Place Sat. Sep 12, 2015

100 mile runners get a BUCKLE and Hennepin Finisher Flannel!

See pictures and learn more on our website

COVID-19 Registration precautions

We have paused registration. You can register and we will open a spot into the race for you at today's cost. This takes the risk out of registering for a race with the COVID-19 pandemic.

Half Marathon & Team Relay

Watch our facebook page for announcement of when these race options will open. We are fine tuning these race distance options before opening up the registration. We will have an early bird pricing for them too!

Mile 90 is our professional photographer on course with free "logo" picture downloads


2019 we sold out before race day.

Flat & Fast

The Hennepin Hundred is Illinois’ only point-to-point, all-trail ultramarathon, a true Illinois adventure from Sterling, Illinois on the Rock River to Colona, Illinois near the mighty Mississippi, along the historic and beautiful Hennepin Canal.

Flat and fast, the 50- and 100-mile courses follow the 104-mile Hennepin Canal State Trail, Illinois’ longest multi-use trail, across historic locks and lift bridges, past the autumn corn, picturesque farms and postcard towns of northwest Illinois. It's a perfect course for a PR run, a first 50 or 100, or for chasing a world's fastest time!

Find race information, fantastic photos, hotel info and more at

The Mule 50k- night time run

Starts at aid station 7/15.
5 pm start

See website for full details

Aid Stations and course

Aid stations every 3-7 miles.

Please check out for a list of aid stations & relay exchange areas

Morning Bus ride to start line

100 mile runners Timbrook Field: bus leaves at 5:10 am sharp

50 mile runners Lock 17:bus leaves at 5:10 am sharp

Bus service is $10.00

Testimonial from Kyle Siefers, first-time 100 finisher in 19:33:28

"Thank you so much for running an excellent race. It was my first 100-mile run and I couldn’t have asked for a better event. All of you truly did a fantastic job and I am so impressed by how hard everyone worked. I saw Michele several times during the race and was constantly wondering if she was just everywhere. I have helped run a triathlon before but nothing of this caliber, so I cannot imagine the stress and commitment it took. Everyone is impressed by the runners, how they are staying up through the night to complete the race, but I know that the race directors were probably up for 72 hours straight. Thank you so much for all of your hard work!

I would also like to thank all of the volunteers. They were amazing, all of them. I loved so many of the stops. Aid 2 had Jello shots, which was awesome (I saw that aid 8/13 had Jack, but I couldn’t bring myself to swallow that at that point in the race). Aid 6 had a great theme going on and made me laugh when they scared me coming out of the tunnel. A special shout-out to Aid 16, who was all alone in the dark but was super friendly and helpful. He was a sight for sore eyes at that point. The fire chief at Aid 20 was just incredible, he had that trial light up like it was the fourth of July and we were thankful for all his awesome helicopter landing lights. There are many others that I would like to mention but will spare you a longer letter. Thank you so much to everyone that helped out. It was a great event and I will be recommending it to other ultra-friends for coming years!
I am donating a small amount to the Trails for Illinois organization as a small thank you gift. Hopefully it helps maintain the Hennepin Canal Trail!

Kyle Siefers"

Read website for full deferral instructions

We take pride in working hard to keep our race prices down. In an effort to keep our cost low, we have come up with this policy. Most of our race gear is ordered by mid July and deferrals cost the race quite a bit of money.

Defer by July 31st- 100% deferral to 2021 race

Defer between August 1st and September 15th- your option is to do 8 hours of assigned volunteer work for a full deferral. You can do this at either Hennepin Hundred or Kettle Moraine 100. You will need a signature from the aid station captain, or job assignment captain that you completed your 8 hours. Send this into us, and we will send you a coupon code to register.

No Deferrals after September 15th

No refunds- you can transfer your bib to another runner. You have until August 15th to do this. You can make this change on your ultrasignup account

Local time: 4:24 AM


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