St Andrews' trainer George Blacker was earlier pessimistic about the chances of his star stayer running in the AAMI Launceston Cup because he thought the handicapper might weight him out of the race after last Monday's win.

St Andrews was handicapped to carry 55.5kg in the AAMI Launceston Cup, which was 1kg less than he carried in the AAMI Hobart Cup, but with only a half-kilogram extra to carry at Mowbray, the trainer will press forward.

The seven-year-old gelding is raced by the trainer in partnership with his wife Marlene, who said the extra half-kilogram at Launceston was not enough to prevent him from running in the race.

"The horse has done really well since the Hobart Cup. He never left an oat in the feed bin and provided he stays healthy he will start in the AAMI Launceston Cup," Mrs Blacker said.

St Andrews almost doubled his stake earnings when he stormed home to win the AAMI $200,000 Hobart Cup (2400m) at Elwick on Monday.

The $136,000 first prize purse took the lightly raced seven-year-old gelding's stake earnings to $320,000, making St Andrews one of the cheapest buys in the history of Tasmanian racing.

St Andrews was purchased as a weanling by his trainer George Blacker for $200.

Blacker used St Andrews as a lead pony at his Longford stable before deciding to give the horse a chance to prove himself on the racetrack as a late four-year-old.

Only a year after the Aliocha-Flying Regent gelding began his racing career he won the 2000 Launceston Cup but this season he has truly blossomed.

It was an emotion filled scene last Monday after St Andrews stormed down the centre of the track to defeat Victorian four-year-old Imax, from the Michael Moroney stable and the Gary White-trained Lord Baracus.

Jockey Stephen Maskiell burst into tears as he prepared to face the media. The rider failed to boot home a winner on Derby Day and was still feeling the effects of losing the Strutt Stakes last Saturday aboard top class filly Abbadena, which was considered one of the best bets of the entire AAMI Tasmanian Summer Racing Carnival.

"People don't know just how much this win means to me," Maskiell said as he brushed away the tears.

St Andrews will now head to the AAMI Launceston Cup and if successful in that race he will be the first to win the state's feature cups double since Brallos in 1977.