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Spring BYB 5M/10M Trail Running Series Rosaryville Half Marathon/10K Trail Run Reservoir Relay Trail Run
Fountainhead Half Marathon/10K Trail Run Blue Crab Bolt 5K/10K Trail Running Series

XTERRA EX2 Off-Road Triathlon/Duathlon

Fountainhead Trail Tri Hemlock Half Marathon/10K Trail Run Schaeffer Half Marathon/10K Trail Run
Fall BYB 5M/10M Trail Running Series        
The Spring Backyard Burn

Spring BYB Race #1
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3/5/17 - Spring Backyard Burn Trail Running Series - Race #1

3/19/17 - Spring Backyard Burn Trail Running Series - Race #2

4/2/17 - Rosaryville Half Marathon/10K Trail Running Race

4/23/17 - Spring Backyard Burn Trail Running Series - Race #3
[Lake Fairfax]

5/7/17 - Spring Backyard Burn Trail Running Series - Race #4
[Pohick Bay




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Reservoir Relay Trail RunTuesday, January 31, 2017
Team Up or Go Solo at EX2’s Reservoir Relay Trail Running Race!

Calling all Trail Runners!

Grab some friends, start training, and get excited for the second annual Reservoir Relay Trail Running Race.  Held on Sunday, May 21st, this unique format, point-to-point trail race includes the entire 18 miles of the famed Bull Run-Occoquan Trail in Western Fairfax County, VA – some of the most amazing single-track in the DC area!  

The course is divided into three linear segments measuring 5-7 miles each.  Race solo or leap frog the different segments on a two or three-person relay team where the 'active' runner and the ‘on deck’ runner swap car keys for timing chip.  For two person teams, one team member will complete any two segments of the race.

Click here to view the course maps, elevation profiles, and GPS tracks

Mark your calendar and get registered for one epic day on the trails!  Hope to see you out there.

© Swim Bike Run Photography

Tuesday, December 20, 2017
EX2 2017 Race Highlights and Registration is NOW OPEN!

Hello from EX2 Adventures!                                      

Although we just wrapped up our 2016 race season a few weeks ago, it’s hard to contain our excitement for the 2017 EX2 race line up

In the New Year, we have 19 action-packed races planned, which include a healthy mix of shorter distance trail runs, endurance testing epics, and team bonding relays.  We’re pumped for 2017 and we hope you’ll be too - it’s going to be an amazing year!

Registration is NOW OPEN for all 2017 EX2 races.

Click here for 2017 Race Highlights.

BIG FUN is planned for 2017.  We hope you’ll come along for the ride. 

Enjoy the Holidays!

Jim Harman
Race Director
EX2 Adventures


© Swim Bike Run Photography

Monday, November 28, 2016
The 2016 EX2 Race Season is a Wrap!

The 2016 EX2 race season wrapped up yesterday with the running of the final 2016 Fall Backyard Burn Trail Running Race at Fountainhead Regional Park in Fairfax Station, VA.  Close to 350 adventurous racers tested themselves on a technical course littered with rocks, roots, steep hills, and stream crossings.  It was an excellent day of trail running action and a great way to end our 17th season!       

Congratulations to everyone who took on the challenge of Fountainhead and THANK YOU to all racers, volunteers, the park authority, and our sponsors for helping to make it all happen!

Results are now posted.  Photos are coming soon.

© Swim Bike Run Photography

Monday, November 21, 2016
Trail Runners Enjoy Running Through Former Lorton Prison Complex!

In the grassy ‘Quad’, adjacent to repurposed jail cells and abandoned guard towers of the former Lorton Prison complex, close to 350 racers toed the line yesterday at the third race of the 2016 Fall Backyard Burn Trail Running Series.  Under sunny skies and through windy conditions, athletes negotiated a fast, fun, and beautiful course which included mostly open meadow single-track.  It as an excellent day of trail running action!

Thanks to all the racers, volunteers, sponsors, the Fairfax County Park Authority, and the Workhouse Arts Center for helping to make it all happen. 

Results are now posted.   Photos are coming soon.

The FBYB series finale and the final race of the 2016 EX2 season will be held on November 27th at Fountainhead Regional Park in Fairfax Station, VA.  This is one of the more technical and challenging courses in the series and consists mostly of hiking trails (including the Bull Run Occoquan Trail), horse trails, and old dirt roads.  This race has filled up for the last several years so register today to guarantee your spot on the starting line.


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!