Entries are open for the 2026 NSWRRC 600 Regularity Relay, with strong early interest expected as the popular endurance event celebrates it’s decade-long milestone.
Organised by the NSW Road Racing Club, the event will take place on 27–28 June at Sydney Motorsport Park – again featuring as a highlight on the grassroots motorsport calendar.
Supplementary Regulations for the 2026 event have been released and entries opened last month with organisers warning team spots will fill rapidly.

The 2026 event marks the 10th anniversary of the relay, and will feature a unique format change.
For this year only, the traditional six-hour format expands into a 10-hour endurance contest, split across two days to deliver a total of 600 minutes of racing.
The opening four hours of the endurance event will run under lights on Saturday evening, before teams return to complete the remaining six hours on Sunday. Practice and passenger rides will be held earlier on Saturday.
NSWRRC President Dean Steward told Motorsport Australia the events growth in popularity and reputation is the result of collective effort from club members and the wider community.
“A lot of work has gone into this event over the years, particularly from ex-president Kerry Butchers OAM, who is sadly no longer with us,” Steward said.
“Apart from being a great event to attend as a spectator, it’s most enjoyable for all the pit crews as well. There’s a lot of camaraderie at the event, and it’s a major reason why the teams love coming back. They love working together as a team to achieve success.
“They work together to get improve their results each year, lots of teams come from interstate, and we put them together in the few garages, so they can spend time together.
“The 10th year of this event will be a special one, without a doubt.”

Run on the Gardner (GP) circuit configuration, the event is open to a wide range of vehicles, including road-registered cars.
Drivers must also demonstrate suitable motorsport experience, ensuring a competitive yet accessible environment for club-level competitors. All drivers are required to have a minimum of a Motorsport Australia Speed Licence.
The NSWRRC 600 Regularity Relay has built a respected reputation for its team-based format, consistency and cooperation in facilitating the event.

Teams typically consist of multiple drivers (three to six drivers) sharing one or more cars, aiming to match nominated lap times rather than outright speed.
Organisers also note strong interstate participation and a focus on camaraderie within the paddock.
Event registrations close on 15 May, 2026.
For more information head to the NSW Road Racing Club’s event page.