The C&O Canal 100 mile race takes places on the scenic C&O Canal each year during the final weekend in April. The race starts and finishes at Camp Manidokan near Knoxville, Maryland.

The C&O Canal 100 course is almost entirely flat and offers plenty of opportunities for success both with new 100 mile runners and old veterans who are up for a challenge on a beautiful course.

The 2014 race was held on April 26-27, 2014. The 2015 event will be held on April 25th-26th, 2015.



General Information

Course Overview

Course Maps

Aid Station Distances

Contact Us

Official Facebook Page


2015 Event

The 2015 even will be held on April 25-26. Registration will open up on December 1st, 2015. Entry will be limited to 150 runners, and a waitlist will be kept if necessary. Please check back on the registration page as December draws near.

2014 Event

The 2014 race event will once again be held on the last weekend in April, April 26-27th and the race will start at 7AM on April 26th with the cutoff remaining 30 hours. Registration will open on December 1st, 2013 on ultrasignup. See the registration page for more information.


  • The course will be modified to include a new loop near the start (see the Maps page) and the leg toward Antietam creek on the first loop will be removed. The trail down to the canal will be re-routed for a more favorable descent/ascent. The course/aid stations/logistics will otherwise remain unchanged.
  • We will be adding a re-race dinner the evening before the race. This will be a good chance for socialization and a Q&A session with the RD and runners who have run the event in the past. This will be open to runners and friends, family, loved ones, etc.
  • Due to poplar demand, "race premiums" of some sort will be available for purchase (optional) at registration. We were able to get a great deal from Patagonia last year to provide shirts for our fantastic volunteers so we hope Patagonia will be able to provide race premiums at a great deal as well. Once this is finalized we will post in the news section and update the registration page.
  • The course is in the process of being re-measured for accuracy. Once the distances have been finalized the maps will be updated and a new item will be posted. The cutoff times for the aid stations will be adjusted to reflect the new course distances.
Danny Mowers

 Race News
4/28/14 - The 2015 even will be held on April 25-26. Registration will once again open on December 1st, 2015.

4/28/14 - The 2014 event is in the books, so check out the 2014 Results Page to see a the list of finishers as well as photos and race reports from the weekend. We intent to keep the race going next year so mark your calendar again for the last weekend in April if you want to join us!

4/16/14 - An updated race packet has been posted containing additional information on bathrooms, camping, pre-race dinner details, and some other minor corrections. The changes have been highlighted in email #2 to all entrants which can be found on the emails page. Bib number have also been updated for all participants on the ultrasignup entrants list.

4/8/14 - The race website has been added to the general information page and the first official email has been posted. If any further changes are made to the race packet we will note them here.

1/27/14 - A reminder to those who are still considering signing up: the registration fee will increase to $95 on February first. Additionally, if you want to buy a jacket when you register you will need to do register before February 23rd so we can place the order and have them printed in time. The entrant list currently stands at 104 runners.

11/30/13 - The maps, aid station information page, and course description have all been updated for the 2014 race.

9/11/13 - The race website has been overhauled to reflect new information for the 2014 event. Registration will open on December 1st, 2013. The course is being re-measured and the final new maps and mileages will be updated prior to the start of registration for 2014. If you have any questions please use the Contact Us page.

7/6/13 - The 2014 C&O Canal 100 will be held on April 26th-27th, with the race starting at 7AM on Saturday. Registration will open on December 1st, 2013. Stay tuned here as developments continue in the planning.


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