Start / Finish

Algonkian Regional Park

Sterling, VA 20165 view map »

Race Day Checklist (PDF)

2014 Results

April 18 - 19, 2015

days until race day

Parking & Shuttles

Event parking is not available at any lot adjacent to the Start/Finish Area. All Endurance Challenge participants and spectators are required to park at Loudoun Tech Center and take the event shuttle to the Start/Finish Area.

Loudoun Tech Center
45945 Center Oak Plaza
Sterling, VA 20166


Why not carpool to this year’s Endurance Challenge event? Reduce the strain on available parking needs and more importantly, the impact on the environment.

Ricky Rides, a carpooling tool for events, puts you in control of your ride-sahring experience. Visit the event pages for either SATURDAY or SUNDAY and follow the instructions available HERE.

SHUTTLE Schedule

On Sunday, shuttles will be departing to multiple locations. To ensure you arrive at the appropriate race start location, verify that the shuttle has a sign for your race distance in the window. DO NOT board a shuttle without verifying that it is the appropriate shuttle.

Shuttles departing to Great Falls Park for the Half Marathon Start are for Participants ONLY. Spectators can take to provided shuttles to meet their runner at the Finish Area in Algonkian Regional Park.
Saturday, APRIL 18, 2015
First GORE-TEX 50 Mile Shuttle
 3:15 AM
Last GORE-TEX 50 Mile Shuttle
 4:15 AM
First 50K Shuttle  5:15 AM
Last 50K Shuttle  6:15 am
first Marathon shuttle  7:15 am
last marathon shuttle  8:15 am
first marathon relay shuttle  8:30 am
last marathon relay shuttle   9:15 am
post-race shuttle schedule
all distances first shuttle  11:00 am
all distances last shuttle   7:00 Pm
Sunday, APRIL 19, 2015
First Half marathon Shuttle - DEPARTING TO GREAT FALLS PARK
 6:00 AM
Last Half marathon Shuttle - DEPARTING TO GREAT FALLS PARK  7:15 am
first 5K shuttle  6:00 am
last 5K shuttle  7:30 am
Post-race shuttle schedule 
All distance first shuttle   9:00 am
All distance last shuttle  1:00 Pm
Pre-race shuttles will depart approximately every 10 minutes from Loudoun Tech Center. Estimated one-way shuttle time to Algonkian Regional Park is 15 minutes. Estimated one-way shuttle time to Great Falls Park is 30 minutes. Spectators, crew and pacers are allowed to ride the shuttles to and from Algonkian Regional Park ONLY. 

Following the start of each race, a return shuttle will transport spectators, crews and pacers back to Loudoun Tech Center parking lot. Continuous shuttles will run throughout the day for participants, crew, pacers and spectators approximately every 30 minutes.


Hyatt Place
Sterling / Dulles Airport - North
21481 Ridgetop Circle
Sterling, VA 20166
(703) 444-3909
Distance to Event: 3.6 MIles

TownePlace Suites by Marriott
21123 Whitfield Place
Sterling, Virginia 20165
(703) 421-1090
Distance to Event: 3.3 MIles 

Hampton Inn Cascades
46331 McClellan Way
Sterling, VA 20165
(703) 450-9595
Distance to Event: 3.5 Miles

SpringHill Suites by Marriott
Ashburn Dulles North
20065 Lakeview Center Plaza
Ashburn, Virginia 20147
(703) 723-9300
Distance to Event: 6.2 Miles

Airport Locations

Washington Dulles International Airport (IAD)
Distance to/from Event: 18 Miles
Distance to/from Host Hotel: 16 Miles

Ronald Reagan International Airport (DCA)
Distance to/from Event: 18 Miles
Distance to/from Host Hotel: 14 Miles

Baltimore-Washington International Airport (BWI)
Distance to/from Event: 46 Miles
Distance to/from Host Hotel: 45 Miles