Abstract: A system for timing an event utilizing video playback on a mobile device is disclosed. The mobile device includes a processor, a touch panel, and a camera. The mobile device is configured to: generate a video recording of an event with the camera; store the video recording of the event in the memory; play back the video recording of the event, frame by frame, via the touch panel; receive a first input via the touch panel, the first input associated with placing a start pin at a first frame or sub-frame of the video recording; receive a second input via the touch panel, the second input associated with placing a finish pin at a second frame or sub-frame of the video recording; and determine a time period between the first frame or sub-frame associated with the start pin and the second frame or sub-frame associated with the finish pin.