(From left) are the Purvis brothers, Maxwell, 5, and Zachary, 4.
The starting line of the 1K fun run.
(From left) are the Winans brothers, Tyler, 5, and Brandon, 8.
Jason and Heather Gray with children, Callum, 20 months, and Cillian, 4.
Trying to be scary are the Reams brothers, from left, Diesel, 5, and Wolf, 3.
Mia Thelin, 4.
GMU senior Malia Pereyra.
Isabella DiPietro, 4.
Runners take off from the 2013 Goblin Gallop 5K starting line.
The Munoz sisters, (from left) Valerie, 6, and Emily, 7.