The Outback Air Race is a GPS-based navigation time trial throughout the remote Australian outback. In 2018 the event will host 100 competitors in 41 aircraft, in which pilots nominate an elapsed time between two visual waypoints, receiving points for both time and location accuracy.

Data is downloaded from GPS data loggers and the output files, typically containing several thousand data plots per plane, processed through AirScore, an Excel application written specifically for the Outback Air Race, to calculate the winner for each stage and allocate points towards the total event score.