And, the plan came off when the eight-year-old, ridden by Ashley Morgan, careered away to secure the $150,000 Viatek Muswellbrook Gold Cup (1500m) on Friday.

Petrology ($51) came from second last at the turn with Morgan threading his way through the field in the straight.

The horse hit the lead at the 250m and careered away to win by three-and-a-quarter lengths from Love Shack Baby ($16) with Bobby Dee ($5) another three-and-a-half lengths away third.

The $3.70 favourite Shock Alert pulled up a long last, more than 21 lengths from the winner.

The horse had a tough run and was vetted after the race and found to have a slow recovery rate.

Doyle was born and raised in Muswellbrook and started his training career there, but then took a sabbatical and went to Peter and Paul Snowden and Mark Newnham to work in their stables and gain more experience.

He now trains out of Newcastle and has found a new lease of life in Petrology.

The horse spent the majority of his career with David and Ben Hayes and Tom Dabernig and won five races for them including the Group Two Sandown Guineas in 2014.

In 2017 he ran third in the Group One Toorak Hcp at Caulfield and followed that up five months later with a third in the Listed C S Hayes at Morphetville.

However, his form fell away and eventually the horse was switched to Matthew Dunn at Murwillumbah.

His best effort for that trainer in four starts was a second at the Gold Coast before the horse ended up with Doyle.

"I am so grateful to Mark Pilkington (Seymour Bloodstock) for sending the horse to me," he said.

"I told Mark after the horse came to me that the cup was the race, I had in mind for him.

"Moving the cup to March was just perfect."

Doyle gave the horse two runs at Randwick in September then turned him out for a break.

Petrology resumed with unplaced runs in mid-week races in Sydney last month and again earlier this month.

"I gave him two lead up runs in town without the blinkers but I put them back on for this race and it worked," he said.

"He didn't have any major issues when I got him apart from the normal wear and tear of an eight-year-old.

"I just keep changing things around and keep him mentally happy.

"He gets plenty of attention and a good pick every afternoon.

"Horses like him don't lose their ability; you just have to get them back into form.

"I have no idea where we will go with him now.

"If racing continues, we might have to look at Listed races with him otherwise he will get too much weight."

Doyle could not praise Morgan highly enough.

"Ashley rode him perfectly, that is exactly how he has to be ridden," he said.

"Ashley rides a lot of work for us and he and Petrology get on so well together and they certainly gelled today."

***

BRETT Cavanough still does not know what happened to Star Boy when he ran last at Eagle Farm last month but he made up for that failure by winning the Horsepower Skellatar Sprint (1000m).

Ben Looker bounced Star Boy ($11) straight to the lead, then eased back to be running third behind Iamacrumpet and Ozark to the 600m.

At that point Looker let Star Boy take control and he was never headed after that to win by a length from the luckless Black Magnum (Rory Hutchings).

"Everyone is confused about what happened in Brisbane, the trainer, the owners and even the horse," Cavanough said.

"He is a horse that has to be allowed to roll and use his natural speed and James (Orman) did not do that."

Looker certainly did and despite the track being rated a soft 6 he ran a smart 57.31 seconds and ran home the last 600m in a sizzling 33.23 seconds.

Black Magnum ($4.80) was wide all the way and came down the centre of the track but never looked like he would catch the winner.

The victory takes Star Boy's record to eight wins from 21 starts including a Highway at Warwick Farm while he ran a close second in last year's Listed Ramornie Hcp at Grafton.

***

CAMERON Crockett praised Samantha Clenton for her ride after she steered Brother Bassy to a win in the Prime 7 Maiden (1280m) and left the connections of Dreaming Of Gold lamenting yet again.

"I don't know what was happening but my horse would not settle and it was only that Samantha is such a strong rider she was able to get him travelling," he said.

"Perhaps he is trying to send me mixed messages.

"I thought early on he was going to be a good horse but now I am not so sure.

"While many people thought he was going to be a stayer I don't think so."

Brother Bassy was wide early but Clenton was able to restrain him and get him on to the fence and trailing the favourite Dreaming Of Gold.

Dreaming Of Gold (Christian Reith) hit the lead in the straight but Clenton pushed Brother Bassy along the fence to overhaul her and win by half a length.

That was Dreaming Of Gold's sixth start and her sixth second including placings on the Beaumont track at Newcastle and at Hawkesbury.

***

BJORN Baker regularly sends horses to Muswellbrook from his Warwick Farm stable and landed another winner when the heavily-backed Colesberg (Keagan Latham) won the Muswellbrook RSL Golf Club Benchmark 58 (1750m).

The horse was backed in from $4.40 to start the $2.70 favourite with Keagan settling him in third place on the fence.

In the straight he took advantage of the cutaway to go to the lead then held off More Spice (Mitchell Bell) to win by one and a half lengths.

Latham later made it a double when he won the Eaton's Hotel Class One (1000m) on Vox Pop, trained at Randwick by John Thompson.

Vox Pop sprinted away late to beat the Jan Bowen trained Emilette by one-and-three-quarter lengths.

***

THE Brett Thompson-trained Larynx hit the lead in a 1400m race at Orange last Sunday only to be run down in the shadows of the post.

Thompson backed him up for the TAB Class Three (1450m) and this time, with Andrew Gibbons aboard, he held on to win, beating the Tim McIntosh trained favourite Absolute Trust by three quarters of a length.

"I have a lot of time for this horse," he said.

"I think he will be a very nice horse next preparation and I think 1600m will be his best distance."