A child of a half marathon participant holds a sign near the finish line April 13, 2013 at Joint Base Andrews, Md. The child's mother was participating in her first half marathon. (U.S. Air Force photo/Staff Sgt. Brittany E. Jones)

Participants of the Inaugural Joint Base Andrews Half Marathon are awarded with medals as they cross the finish line April 20, 2013. The first place runner was Brenda Shrank who finished with a time of one hour, 24 minutes and nine seconds. (U.S. Air Force photo/Staff Sgt. Brittany E. Jones)

A half marathon participant finishes the last leg of the race April 13, 2013 at Joint Base Andrews, Md. A half marathon is 13.1 miles. (U.S. Air Force photo/Staff Sgt. Brittany E. Jones)

A man takes a photo of a runner seconds before he crosses the finish line of the Joint Base Andrews Half Marathon, April 13, 2013. A half marathon is 13.1 miles. (U.S. Air Force photo/Staff Sgt. Brittany E. Jones)

Kristopher Epps, half marathon participant, crosses the finish line at one hour, 24 minutes and 48 seconds at Joint Base Andrews, Md., April 13, 2013. Epps was the first place male runner to finish the half marathon. (U.S. Air Force photo/Staff Sgt. Brittany E. Jones)

A runner receives a medal after crossing the finish line April 13, 2013 at Joint Base Andrews, Md. Medals were handed out to all participants of the Joint Base Andrews Half Marathon. (U.S. Air Force photo/Staff Sgt. Brittany E. Jones)

Participants of the Inaugural Joint Base Andrews Half Marathon are awarded with medals as they cross the finish line April 20, 2013. The first place runner was Brenda Shrank who finished with a time of one hour, 24 minutes and nine seconds. (U.S. Air Force photo/Staff Sgt. Brittany E. Jones)

Runners eat snacks and drink water after completing the Joint Base Andrews Half Marathon April 13, 2013. A half marathon is 13.1 miles. (U.S. Air Force photo Staff Sgt. Brittany E. Jones)

A runner stretches after completing a half marathon April 13, 2013 at Joint Base Andrews, Md. The first place runner was Brenda Shrank who crossed the finish line at one hour, 24 minutes and nine seconds. (U.S. Air Force photo/Staff Sgt. Brittany E. Jones)