The lucrative series is now heading to Dawson Park, with two heats to be run at the Dubbo track on Sunday before the regional final the following Saturday.

The top four placegetters in that regional final move through to the semi-finals before the final, the world's richest greyhound event, is contested at Wentworth Park on October 18.

Roberts already has one chance in the semi-finals after Squiggle Keeping finished third in the Gunnedah regional finals earlier this month, and she'll chase more success with a hope in each of the heats at her home track on Sunday night.

Consistent campaigner Cliff Keeping is in the first heat over 516m before the exciting but lightly-raced Annabel Keeping races in the second.

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Neither is likely to start favourite - Cliff Keeping was a $7 chance for his heat on Thursday while Annabel Keeping was at $4.80 - but Roberts knows they have the potential to cause a stir.

Annabel Keeping, to start from box two, will be of particular interest after flying to three wins and a third in the first four starts of her career.

"When we first started to race and trial her she didn't show a hell of a lot and we were actually going to let her go and give her away to another trainer," Roberts said of the Fabregas x Shelly Keeping bitch.

"But we kept her up and she found a new gear and has been going enormous for us. It's actually hard to believe how well she's going.

"On Sunday she'll be giving up a lot of experience."

Plus she's contesting what Roberts feels is the stronger of the two heats.

David Pringle, who won last year's regional final at Dubbo in record time with Midnight Starlet and went on to race in the $1 million final, is back again with Midnight Dare.

He comes in with confidence as well, recently saying Midnight Dare would "run rings around" her kennel-mate while Roberts described the speedy bitch as "a freak".

Midnight Duel is back in Pringle's care after a stint racing in Victoria with Jason Thompson while another who comes into the heats from across the border is the Brett Bravo-trained Lillard.

Hvaing previously raced in Western Australia, Lillard is now with the Victorian-based Bravo and heads to Dubbo having also won three of his four starts.

Roberts' veteran Cliff Keeping will go from box eight in the first heat and while he's proven himself a strong campaigner across his 60 career starts the Dubbo trainer thinks he'll find himself "well out of his depth".

"But anything can happen in racing," she added.

"He's not without a chance and he's in what I think is the weaker of the two heats."

It's still not without its class though, as the Ray Smith-trained Golden Easter Egg finalist Irinka Lizzy will go from box two while Nangar Gift will jump from box one.

Forbes-based Smith already has two dogs through to the semi-finals, with one of those being cult hero Feral Franky.

"We've got two strong heats," Roberts said.

"Brett Bravo is coming from Melbourne and Michael Hardman is bringing Inversion from Sydney [for first heat] and there's plenty of talent.

"David Pringle has got Midnight Dare back from Victoria to have a crack as well."

Duncan Ferguson will be providing the live entertainment at the track on Sunday before country music great Adam Harvey performs at the regional final night.

Racing starts at 5.29pm on Sunday with the heats of the Million Dollar Chase races five and seven.