Place markers at any location on the map with a single tap on Google maps. Label and save groups of markers for future trips. Lap times are automatically displayed when a location is reached a second time.
'Custom GPS Location Timer' automatically texts your friends when you have arrived at these points or when you have traveled a specified distance or time. Audible messages to yourself are an option.
The timer shows your time, distance and pace. See your progress on the map. Distance and pace are reported in either kilometers or miles.
Sample way points are included for the Boston and New York Marathon courses