Feel. Your. Heart. Beat.

The most challenging Ultra Endurance Mountain Bike Race on the planet. Ok so we can't be positive that's true but we are pretty sure you will agree with us on July 6 (the day after the race).

11,000 feet of climbing in three laps in the beautiful Patapsco Valley State Park in Maryland.

  • 100 mile
    The pure pain of epic proportions3 laps of the course

  • 100k
    Brutal, but you'll still be drinking a beer by 5pm2 laps of the course

  • 50k
    No walk in the park but you'll be able to walk the next day1 lap of the course

Course Map (single lap)

Patapsco 100 Course Map

Course Elevation Profile (single lap elevation just under 4000 ft)

Patapsco 100 Course Elevation

  • More fun than you have ever had on Fourth of July weekend.
  • 11,000 feet of climbing in three laps in the beautiful Patapsco Valley State Park in Maryland.

Who would do this crazy event:

Experienced MTB riders from sport to pro elites who want to crush the most challenging Ultra 100 MTB course we could imagine. The 100k and 50k events will be great for those who want a challenge but also want to be able to walk the next day.

Category Summary:

An EPIC in every true sense of the word. The course is a 31 mile loop, 90% will be on dirt and greater than 80% will be on singletrack. This will be no walk through the park. Train accordingly.

Patapsco 100 Sweet Chart

The Patapsco 100mi, 100k, and 50k courses will travel through Pickall , Hollofield, Daniels, Lower THRU trail, Woodstock, Upper THRU trail and Alberton areas of Patapsco Valley State Park.


8125 Johnnycake Road Woodlawn, MD


Aid Stations

3 aid stations along the route will provide aid at the following locations/mileage:
  • The start/finish area
  • Mile 17.5 & Mile 25.5 (same aid station that riders will pass each direction)
  • This means that riders will pass aid stations at miles 17.5, 25.5, 33, 50.5, 58.5, 66, 83.5, and 91.5
  • Drop bags available at either aid station (details coming soon)


We need lots of super volunteers to pull off the Patapsco 100. Get a sweet Patapsco100 T-Shirt, 1 Meal Ticket, 1 Red Cup For Beer Garden (if over 21), and that warm fuzzy feeling as you watch all those suckers suffer all day. For more information contact patapsco100@blueoceanideas.net.

Limits & cutoffs

The race is limited to 500 racers in all categories.

Racers competing in the 100 mile races must be able to complete each of their laps in 5 hours. Racers who do not make the 5 hour per lap mark will be pulled from the course at the start/finish area.

The cut-off schedule is as follows:

  • Must start lap 3 before 5:00pm
  • Must exit the Woodstock Aid Station at mile 81.5 by 7:00pm
* Cutoff rules will be strictly enforced.


We will be issuing refunds and transfers but we will charge $10.00 per person who drops out or transfers out of the race. You may also opt to donate your registration fee to Adventures for the Cure (a 501(c)3 non-profit organization).

Master's Category Age Determination

Your age is determined as of December 31st, 2015. So if you will be 50 or older before 12/31/15 you may enter any of the master's categories.

Registration Packet Pickup

We will have an organized packet pickup at The Hub bike shop in Catonsville the day before the race. The Hub is located at 827 Frederick Road, Catonsville, MD 21228 ( get directions here ) and they will be open from 10am - 6pm on Saturday 7/4/2015.

100 Distance Prizes:

Patapsco 100 Prize Chart