Brown led Walkinshaw Andretti United’s Ryan Wood. The pair were split by 0.0225s at the end of the half-hour session, which was stopped for a dislodged tyre bundle.

Indeed, it was Brown who was responsible for the stoppage, having clipped the tyres at the first chicane.

The stoppage came with just under eight minutes to go, setting up a dash to the flag.

Triple Eight Race Engineering bookended the top three with Brown first and Broc Feeney third.

The #88 Chevrolet Camaro had a moment on its final flying lap, slapping the tyre bundle out of Turn 7 to leave a scar down the left side of Feeney’s car and without either of its wing mirrors.

“You can rewrap cars but you can’t always be fast around this joint, so if I did that coming 20th I’d be pretty disappointed,” said Feeney.

“Having a crack. I’m normally pretty kind to my car but I had about three or four touches of the wall then.

“That last one was a bit bigger than the others. All good. The car is fast. I felt really good out there.

“The last couple of years it has probably taken me a bit to get up to speed, so I’m stoked to roll out strong – just adding a bit of flair to it.”

Feeney SLAMS the tyre wall 🤯

Join all the action from the @BoostAus Gold Coast 500 this weekend in our Live Feed 👉 https://t.co/mDWXIwVczr#RepcoSC #Supercars pic.twitter.com/HMmDNUEwic

— Supercars (@supercars) October 24, 2025

Dick Johnson Racing driver Brodie Kostecki was fourth ahead of PremiAir Racing’s Richie Stanaway.

Chaz Mostert was the lowest-placed Finals Series driver in 13th, eight tenths of a second away from Brown.

Anton De Pasquale was 11th for Team 18. His #18 Camaro suffered gearbox issues, though he didn’t lose too many laps – ending with 13 to his name.

We have a red flag in Practice 1 🚩

Join all the action from the @BoostAus Gold Coast 500 this weekend in our Live Feed 👉 https://t.co/mDWXIwVczr#RepcoSC #Supercars pic.twitter.com/k7cLxPztBb

— Supercars (@supercars) October 24, 2025

There were steering rack issues for Cameron Hill’s #4 Matt Stone Racing Camaro that meant the Canberran was out of the saddle early.

Hill ended the session with nine laps to his name in last.

“Unfortunately, there’s something wrong with the steering rack,” said Hill.

“I was just getting a really bizarre feeling as I was going over the kerbs.

“That’s not a nice feeling when you’re coming toward the concrete wall and the steering you don’t know which way it’s pointing.

“Bit of a shame, there’s not a lot of practice, and every lap counts. We’ll try get the rack changed for Practice 2.”

Practice 2 at the Boost Mobile Gold Coast 500 is scheduled for 3:25pm AEST.

Results: Repco Supercars Championship Boost Mobile Gold Coast 500, Practice 1

Pos	Num	Driver	Team	Car	Lap	Diff	Gap
1	1	William Brown (F)	Triple Eight Race Engineering	Chev Camaro ZL1	1:09.2663
2	2	Ryan Wood (F)	Walkinshaw Andretti United	Ford Mustang GT	1:09.2888	0.0225	0.0225
3	88	Broc Feeney (F)	Triple Eight Race Engineering	Chev Camaro ZL1	1:09.3792	0.1129	0.0904
4	38	Brodie Kostecki (F)	Dick Johnson Racing	Ford Mustang GT	1:09.4137	0.1474	0.0345
5	62	Richie Stanaway	PremiAir Racing	Chev Camaro ZL1	1:09.4456	0.1793	0.0319
6	55	Thomas Randle (F)	Tickford Racing	Ford Mustang GT	1:09.4903	0.224	0.0447
7	19	Matthew Payne (F)	Grove Racing	Ford Mustang GT	1:09.4935	0.2272	0.0032
8	99	Cooper Murray	Erebus Motorsport	Chev Camaro ZL1	1:09.5699	0.3036	0.0764
9	20	David Reynolds	Team 18	Chev Camaro ZL1	1:09.5854	0.3191	0.0155
10	40	Cameron Waters (F)	Tickford Racing	Ford Mustang GT	1:09.5864	0.3201	0.001
11	18	Anton De Pasquale (F)	Team 18	Chev Camaro ZL1	1:09.7682	0.5019	0.1818
12	26	Kai Allen (F)	Grove Racing	Ford Mustang GT	1:09.8147	0.5484	0.0465
13	25	Chaz Mostert (F)	Walkinshaw Andretti United	Ford Mustang GT	1:10.0855	0.8192	0.2708
14	8	Andre Heimgartner	Brad Jones Racing	Chev Camaro ZL1	1:10.1037	0.8374	0.0182
15	9	Jack Le Brocq	Erebus Motorsport	Chev Camaro ZL1	1:10.1275	0.8612	0.0238
16	14	Bryce Fullwood	Brad Jones Racing	Chev Camaro ZL1	1:10.1339	0.8676	0.0064
17	96	Macauley Jones	Brad Jones Racing	Chev Camaro ZL1	1:10.1973	0.931	0.0634
18	10	Nick Percat	Matt Stone Racing	Chev Camaro ZL1	1:10.2113	0.945	0.014
19	17	Will Davison	Dick Johnson Racing	Ford Mustang GT	1:10.2393	0.973	0.028
20	31	James Golding	PremiAir Racing	Chev Camaro ZL1	1:10.4704	1.2041	0.2311
21	12	Jaxon Evans	Brad Jones Racing	Chev Camaro ZL1	1:10.5698	1.3035	0.0994
22	7	James Courtney	Blanchard Racing Team	Ford Mustang GT	1:10.7661	1.4998	0.1963
23	3	Aaron Cameron	Blanchard Racing Team	Ford Mustang GT	1:10.7685	1.5022	0.0024
24	4	Cameron Hill	Matt Stone Racing	Chev Camaro ZL1	1:10.7974	1.5311	0.0289