For the Bathurst 1000 in the Supercars era, the co‑driver (and main driver) must each complete a minimum of 60 laps under the current regulations, unless stewards adjust the rule for a shortened race.

Basic rule

  • The Bathurst 1000 is 161 laps, and rules now require each driver in the car to do at least 37% of race distance, which equates to 60 laps at Bathurst.
  • This minimum applies to both the primary driver and the co‑driver, so in normal circumstances the co‑driver must do at least 60 laps.

How that plays out in practice

  • Because of fuel windows and strategy, co‑drivers usually end up doing three or more stints, which naturally gets them over the 60‑lap requirement.
  • In earlier seasons the minimum was 54 laps (one‑third distance), but that has been increased, partly to ensure co‑drivers spend more meaningful time in the car.

Special/shortened race cases

  • If the race is significantly shortened (for example by weather or major incidents), stewards can amend the minimum distance requirement so teams are not penalised for something outside their control.
  • In those rare cases, the exact number of laps required for the co‑driver might be reduced in line with the adjusted race distance.

Information gathered from public forums or data available on the internet and portrayed here.