Super2 Series

Le Brocq made his debut in the Dunlop Series with Image Racing in a Ford FG Falcon in 2014. He joined MW Motorsport in 2015 and finished 3rd in the championship. In 2016 Le Brocq joined Prodrive Racing Australia in the No. 5 Ford FG X Falcon. After recording 7 race wins, he finished the championship in 2nd place, behind teammate Garry Jacobson. He then moved back to MW Motorsport in 2017 to drive the No. 28 Nissan Altima L33. Le Brocq would win 3 races and finish 3rd in the championship.

Supercars Championship

Le Brocq made his debut in the Supercars Championship at the 2015 Sandown 500 alongside Ash Walsh in the No. 4 Erebus Motorsport Mercedes-Benz E63 AMG. They finished the race in 19th. The pair then had a DNF at the Bathurst 1000 after the car hit the wall at the cutting. They would again finish in 19th place for the first race at the Gold Coast 600. They were disqualified from the second race.

In 2016, Le Brocq would co-drive with Cameron Waters in No. 6 Ford FG X Falcon for Prodrive Racing Australia. They retired from the 2016 Sandown 500 because of engine issues. At the Bathurst 1000 the pair stayed out of trouble to finish the race in 4th place. At the Gold Coast 600 the retired from the first race after an accident and finished the second race in 14th place.

Le Brocq made his solo Supercars debut at the 2017 Darwin Triple Crown as a wildcard entry, racing with his Super2 team MW Motorsport in the No. 28 Nissan Altima L33. He finished the first race in 19th place before finishing in 22nd for the second race. He also raced at the Ipswich SuperSprint, finishing race 1 in 19th and retiring from race 2. For the Pirtek Enduro Cup he moved to Nissan Motorsport to drive alongside Todd Kelly in the No. 7 Nissan Altima L33. The best finish they recorded was a 7th place at the Bathurst 1000.

In 2018, Le Brocq will make his debut as a full-time driver in the Supercars Championship with Tekno Autosports in the No. 19 Holden ZB Commodore.

Supercars Championship results

Complete Bathurst 1000 results

Year	Team	Car	Co-driver	Position	Laps
2015	Erebus Motorsport	Mercedes-Benz E63 W212	Ashley Walsh	DNF	135
2016	Prodrive Racing Australia	Ford Falcon FG X	Cameron Waters	4th	161
2017	Nissan Motorsport	Nissan Altima L33	Todd Kelly	7th	161
2018	Tekno Autosports	Holden Commodore ZB	Jonathon Webb	15th	161
2019	Tekno Autosports	Holden Commodore ZB	Jonathon Webb	17th	160
2020	Tickford Racing	Ford Mustang Mk.6	James Moffat	14th	161
2021	Tickford Racing	Ford Mustang Mk.6	Zak Best	15th	161
2022	Matt Stone Racing	Holden Commodore ZB	Aaron Seton	14th	161
2023	Matt Stone Racing	Chevrolet Camaro Mk.6	Jayden Ojeda	9th	161