Referees are indispensable in every racing competition. The judges on the track, in addition to ensuring the fairness and impartiality of the competition, will also pay close attention to the safety of each participant on the track and maintain the smooth progress of the race. Every time the Ningbo International Circuit holds a race, hundreds of volunteer referees will be organized on site to maintain the normal operation of the event. In addition to various referees on the track, there is also a group of referees in the control center who constantly stare at the display screen in front of them, recording the laps of each car and updating the race ranking in real time.

The judges have clear division of labor, including track judges, maintenance area judges, vehicle inspection judges, and rescue judges. Every referee precisely controls the operation of the game.