Although the latest edition of the Thoroughbred Calendar lists only five Tasmanian-based apprentices who have reached the stage of riding in races, there are another six waiting in the wings.

Two of them will make their debuts at Spreyton on Sunday.

Erica Byrne Burke, 22, and Chloe Wells, 20, have been approved to ride in races - at this stage, just for their masters and restricted to two rides per meeting.

Quill said that Byrne Burk was from Ireland and Spreyton trainer Adam Trinder had sponsored her visa.

"She started riding in trials in November and has completed about 50," he said.

"Chloe is the daughter of trainer Dean Wells and is with the Wells team at Spreyton. She started riding in trials in January and also has completed about 50.

"They are both quite competent and show good potential.

"They have been switched on at apprentice school and seem to have the right mindset.

"At the moment they are restricted to two rides a meeting but that's not set in concrete - it could be relaxed if there is a shortage of riders and we need someone."

Quill said Tasmania was now building a solid apprentice base.

"We certainly have a good group of girls at the moment - with Codi Jordan doing especially well - and they all seem to be progressing nicely and have a grasp on it," he said.

"There are three other girls who are not far away from race riding and we've also got Tommy Doyle, who has outridden his claim, Peter Lui and Ianish Luximon.

"We should soon have a good crop of claiming apprentices."

Talented apprentice Brandon Louis, from Mauritius, is still in the state but has to get his visa sorted after splitting with trainer Cameron Thompson.

Codi Jordan, who didn't ride her first winner until October, currently has 25 wins for the season.

Erica Byrne Burke's rides on Sunday include Black Magic Woman who will be trying to complete a winning hat-trick in the Vale Jim Daw Handicap.

The three-year-old filly followed a Hobart class 1 win in mid-March with a benchmark 60 win at Spreyton a month ago and, as a result, rises to 61.5kg before the claim.

After leading when she won at Elwick, Black Magic Woman took a sit behind the speedy Rhyme Writer last start before working home strongly to score by a head.

She's drawn to get a similar run this week from barrier 3.

Black Magic Woman's stablemate Hero Of Romani is also chasing a hat-trick at the meeting, as are Videmanette for Scott Brunton and Rising Hsiang for Glenn Stevenson.

Jim Daw was a life-member of the Devonport Racing Club who passed away last month aged 91.

The Tasmanian Racing Appeal Board has ruled that it has no jurisdiction to hear an appeal against the relegation of Bullys Delight from first to last in the Tasmania Cup run in Hobart in March.

After a directions hearing on Wednesday, the board issued a statement that an appeal, lodged by part-owner Jim Kefalas, had been dismissed on the basis of "no jurisdiction."

"As the horse was relegated and not suspended or disqualified, the decision does not fall within the description of matters ... that are capable of being heard and determined by the board," it said.

"If the decision had been to disqualify the horse pursuant to AHRR 174 it would appear the appellants would have had a right of appeal."

It's understood that the only way the connections of Bullys Delight can now overturn his relegation is through the legal system, possibly the Supreme Court.

Independent steward Ray Murrihy used his powers under AHRR 174 to relegate Bullys Delight because driver Rhys Nicholson had deliberately and seriously breached the rules.