Riders Sergio Hernandez, Randy Kingfisher, Caleb Derby, Chris Crooks, Mark Bovingdon and Scott Knupp wait for the signal to begin racing in the base biathalon Aug. 21. (U.S. Air Force photo/John Turner)
James Tanner begins the three mile running portion of the base biathalon after completing the 12-mile bicycle route Aug. 21. (U.S. Air Force photo/John Turner)
Caleb Derby, followed closely by Nicki Hope and Scott Knupp, completes the 12-mile bicycle route and prepares to transition to the three mile running portion of the base biathalon Aug. 21. (U.S. Air Force photo/John Turner)