Despite stringing together possibly the best runs of her career in recent preparations, the five-year-old mare hasn’t won since May last year, 10 starts ago.

Instead, she has scored five placings and eight first-four finishes, including an eye-catching fourth in last year’s Wodonga Cup behind Syndrome and Berringama.

Thrillionaire ran fourth at Canberra last start and after getting scratched from Wednesday’s Sandown meeting will make an uncharacteristically sudden jump to the 1600m of today’s $15,000 Corowa Cup, in which she appears to be the class horse.

“I wouldn’t normally step her up this quickly but it’s got to that stage where we just had to put her in somewhere,” Aldridge said.

“She’s come close a lot of times lately and she deserves to win a nice race.

“She’s getting a little bit difficult to place because she’s probably two or three lengths away from being a handy metropolitan horse.”

Thrillionaire will be ridden by Canberra jockey Brendan Ward, who has ridden the mare in each of her four wins.

Ward will be gunning for his fourth Corowa Cup and second in a row after guiding Fixed Bayonets to victory last year.

“Brendan has stuck to her really well for us,” Aldridge said.

“I told him on Monday that I’d have a couple of rides for him and was pleasantly surprised when he said he’d come down for the day.

“He knows her very well so he’ll give her a good chance.”

Thrillionaire has raced on predominantly dead, slow and heavy tracks in the last year and Aldridge admitted the promise of a firm track today was a concern.

“The surface does worry me a little bit. I know Corowa’s a sandy track but we haven’t had any rain for three weeks now,” he said.

“She really prefers the sting out of the track which is why we’ve got her going again now, so we can get some wetter tracks, but it’s got to that stage where we have to put her in somewhere.”

Nonetheless, Aldridge is cautiously confident of claiming his first Corowa Cup at his first attempt.

“Forget about Canberra last start, that was probably about as disappointing as she gets, so put that aside and you’d have to think she’ll be right in the thick of it,” he said.

“I reckon the hardest to beat would be Eddy Diablo.”

Aldridge witnessed Eddy Diablo’s form first-hand on Monday when the consistent Kevin Hanley-trained gelding ran second to Lacryma Star, another Corowa Cup entrant, in the $9000 Benchmark 65 Hcp (1400m) at Albury.

This year’s Corowa Cup was postponed to May after the original $25,000 event was rained-out in March.