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Spring BYB Trail Running Series 6 Hrs of Cranky Monkey MTB Relay Rosaryville Off-Road Half Marathon and 10K
9 Hrs of Cranky Monkey MTB Relay

Fountainhead Off-Road Half Marathon and 10K

12 Hrs of Cranky Monkey MTB Relay
XTERRA EX2 ORT Tri/Du Cranky Monkey MTB Series EX2 Off-Road Half Marathon/10K
EX2 Adventure Games Fall BYB Trail Running Series    
The Cranky Monkey:
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The Cranky Monkey Mountain Bike Race Series

Three Race Mountain Bike Series.
Your Favorite Local Single-Track.

  • Race #1 - 7/27/14 - Fountainhead Regional Park, Fairfax Station, VA
  • Race #2 - 8/9/14- Rosaryville State Park, Upper Marlboro, MD
  • Race #3 - 8/17/14 - Quantico Marine Corps Base, Quantico, VA

After a year hiatus, the Cranky Monkey MTB Series is back for its 11th edition! We have tweaked the race locations, start times, and classes. The series of cross country format races will start at Fountainhead followed by Rosaryville and the final at Quantico. To beat the summer heat, we have eliminated the 1pm start time. Beginners and juniors will start at 8am and sport, clydesdale, single-speed, and experts will start at 10am or 10:30am. We are also adding beg male 50+ and sport male 50+ classes.

Since 2003, this crowd favorite has challenged thousands of mountain bikers in the local Washington DC metro area. With several classes based on age and/or ability levels, this series is accessible to anyone up for the challenge. Ready to take on the Monkey?

Self-selected classes include:

© Swim Bike Run Photography

* Junior 14-18 Open
* Beginner Female
* Beginner Male 34-Under
* Beginner Male 35+

* Beginner Male 40+
* Beginner Male 45+

* Beginner Male 50+ (NEW CLASS)
* Clydesdales (200 lbs+)
* Sport Female
* Sport Male 34-Under

* Sport Male 35+
* Sport Male 40+
* Sport Male 45+
* Sport Male 50+ (NEW CLASS)
* Expert Female
* Expert Male
* Expert Male 45+
* Single-speed Open

See Definition of Classes for more information.

See Who's RacingA point system adding competitor's three-race point totals will be used to determine the top finishers within each class of the series. Plus, help maintain the trails during our paydirt trail maintenance days and earn points toward your series total.



The Cranky Monkey is sponsored by:

The Bike Lane IFP
Baird Automotive CDW
DrinkMore Water Positively Chiropractic
Wicked Wash  



Thank you for visiting EX2 Adventures.
Since the year 2000, EX2 Adventures has produced quality outdoor adventure experiences for the greater Washington DC metropolitan community. We encourage you to browse our site and join us at our events. Whether as a competitor, volunteer, or sponsor you are sure to have an excellent experience!