The Formula Ford graduate took the win from pole position despite losing the lead at the start to Lincoln Taylor.
Williams lit up the rear tyres when the lights went out, taking the lead back at Turn 3 while the field battled behind.
Former series regular Ryan Suhle continued his return to racing with a strong second place finish to cap off a TGR 1-2 finish.
Taylor held on to third spot ahead of the championship leader Hunter Robb from Jones Motorsport.
Kamal Mrad charged through to fifth spot, capitalising on lock-ups for a pair of key runners ahead.
Johor Motorsports Racing junior Hayden Haikal and McElrea Racing’s Daniel Quimby both suffered front tyre locking, each narrowly avoiding incidents in heavy braking zones.
Buy tickets
Haikal avoided Robb on the second lap, dropping several spots as he ran deep into Turn 2.
In the closing laps, Quimby fell down the order to 10th as he struggled with a flat spot, almost spearing into the back of 2024 champion Oscar Targett at the final corner.
Anthony Gilbertson continued his dominant run of form in the Pro-Am class, taking the victory in 13th position outright.
Porsche Michelin Sprint Challenge continues its 100th round celebration on Sunday at 9:40am AEST with the 45-minute Jim Richards Enduro Trophy race.
Toyota Gazoo Racing Australia GR Cup
Brock Stinson picked up where he left off in the opening round, taking victory in Race 1, his fourth in as many races.
Stinson was forced to fight for the win after losing the lead on the opening lap to Pip Casabane.
The championship leader wrestled the lead back from Casabene with an impressive move, battling through Turn 5 and 6 side-by-side.
Casabene settled for second place, while Ben Stewart came home in third after being in the wars early on.
Cooper Barnes battled in the top five but could not quite pass Stewart, settling for fourth, while Kade Davey rounded out the top five.
Front-runner Liam Gerges was left with steering damage in the opening laps after contact from Stewart at Turn 3.
Invited drivers Chris Pither and Todd Hazelwood encountered contrasting races.
Pither battled inside the top 10, coming home in eighth spot, while Hazelwood just snuck into the top 20.
Barnes hit back in Race 2 to end Stinson’s dominant run and take his first GR Cup victory.
Casabene came home in second place after capitalising on an intense side-by-side battle between Barnes and Stinson through Turn 5 and 6 in the opening laps.
Stinson was forced to settle for third place, coming home ahead of Stewart, with Lachlan Gibbons rounding out the top five.
Close battles erupted throughout the entire field, particularly between Joshua Marsh and Craig Thornton, who battled together for almost the whole race.
Pither suffered a mechanical issue and was forced to park on the inside of Turn 11, while Hazelwood moved forwards to 16th after a tight battle with a recovering Gerges.
Toyota GR Cup returns for its final race of the weekend on Sunday at 1:00pm.
Aussie Racing Cars
Diesel Thomas took victory in Race 2 on Saturday morning following an epic multi-lap battle with Brandon Madden.
The pair swapped the lead multiple times in the final laps, spending almost the entire penultimate lap side-by-side.
Madden made one final desperate dive at the final corner, but ran too deep, allowing Thomas to take the win by 0.5s.
Jack Boyd and Rossi Johnson came home third and fourth, reeling in the leaders over the final few laps as the pair at the front battled.
Cody McKay stayed out of trouble to round out the top five.
Drama erupted at the start when cars in the mid-pack appeared to jump the start over the leaders, including Grant Thompson who jumped out of line early.
The Western Sydney Motorsport driver was awarded a five-second penalty for the start infringement.
Several cars lost front-end bodywork over the course of the race from contact, including Scott O’Keeffe in a lap one incident.
Anthony Di Mauro took the win in Race 3 with a reverse top 12 start.
Race 2 winner Madden crossed the line third but was promoted to second after Boyd was handed a five second penalty and dropped to 10th.
The race was plagued by yellow flags in the opening laps.
Andrew Hamilton found himself parked in the wall at Turn 3 on Lap 1 after Jeff Watters and Craig Thompson made contact, with Hamilton caught as an innocent bystander.
After a short safety car period, Johnson hit the wall heavily on the exit of Turn 2 after contact with Diesel.
The impact set off a fire in Johnson’s car, with the Territorian scrambling to extricate himself and find a fire extinguisher.
Legend Cars regular Dylan Thomas tagged Will Rowe into a spin at the final corner, with Diesel collecting the spinning car.
Hodson hung onto third, while Diesel finished in fourth place with the right front wheel barely clinging on.
McKay survived to round out the top five for the second consecutive race.
Aussie Racing Cars returns for its fourth and final race on Sunday at 8:45am.
Touring Car Masters
Steven Johnson took a comfortable victory in Race 1 on Saturday morning, leading home Ryan Hansford by 1.5s.
Johnson swept by Hansford and Joel Heinrich from the second row of the grid to take the lead at the start.
Heinrich battled in the back half of the top five throughout the race, settling for third place.
Danny Buzadzic came home in fourth place, while Adam Garwood rounded out the top five.
Kiwi veteran Angus Fogg and TCR race winner Jordan Cox carved their way through the field after qualifying drama left the pair starting off the back row.
Fogg raced through to seventh place, with Cox crossing the line in eighth, seemingly getting the Improved Production Mazda RX-7 dialled in for TCM competition.
Touring Car Masters returns for Race 2 on Sunday morning at 8:10am.
Discussion about this post