At an elite event there are LEDs along the inside of the track that are set to pace at world record pace or what ever pace the meet chooses. The rabbit can pace

At an elite event there are LEDs along the inside of the track that are set to pace at world record pace or what ever pace the meet chooses. The rabbit can pace off the LEDs, or at some interval to the LEDs. Recently there may be multiple paces set by the LEDs.