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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
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Blue Crab Bolt 10K Trail Running Series:


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Blue Crab Bolt 10K Trail Running Series
EX2 Blue Crab Bolt
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BCB#3 Registration Update - Online registration for the BCB#3 race at Little Bennett scheduled for 8/17 is now closed but race day registration WILL BE available on-site on race day.

Three Parks in Montgomery County, MD

  • Race #1 - 7/27/13 - Seneca Creek State Park - Gaithersburg, MD
  • Race #2 - 8/3/13 - Schaeffer Farms - Germantown, MD
  • Race #3 - 8/17/13 - Little Bennett Regional Park - Clarksburg, MD

The Blue Crab Bolt 10K Trail Running Series is back for round five. Similar to our Backyard Burn races, these 10K courses are fun and challenging and include a mixture of winding single-track hiking trails, stream crossings, grassy fields, and minimal pavement. A point system adding competitor's three-race point totals will be used to determine the top finishers within each age group of the series.

See Who's RacingThis summertime series offers awesome trail running action and is becoming more popular each year. So, register early to join in the fun and claim your spot on the starting line.

Blue Crab Bolt 10K Trail Running Series is sponsored by:

The Bike Lane IFP
Baird Automotive CDW
DrinkMore Water Positively Chiropractic



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!