“It has been a reasonable long-term plan.
“Hopefully he can win it, I would be very happy if he could.”
The son of Zoustar previously did his racing in Victoria for the Mick Price and Michael Kent (Jnr) yard.
He has won up to 1410 metres but despite several chances, Sunfall is yet to win at a mile or beyond.
“We bought him off Mick Price and I spoke to Mick through the process and he said he had struggled at a mile,” Lockwood said.
“But, he said that he would be ideally placed in Queensland, which he has been.”
The four-year-old chestnut has won twice in mid-week metropolitan grade as well as finishing in the money twice in a Saturday city race since landing with Lockwood.
Hay also races Petronius – who recently won the Listed Lightning Handicap in Brisbane – with Lockwood.
While Hay has always raced a small team of gallopers himself, he has recently expanded his ownership of more horses who are prepared by other trainers.
Lockwood has a few for Hay, so does leading provincial horseman Clinton Taylor, Battle of the Bush-winning trainer Craig Smith and the dual-licensed David Rewald.
Hay estimates he has picked up 45 winners from the most recent season, eight he has trained himself, with the remainder coming from other trainers.
He has around 30 in work across the state with a number of trainers.
Hay has been a regular in the city in recent years, having a Country Cups Challenge Final runner in 2020 before a memorable effort to finish eighth in the BOTB decider of 2021 with Galapagos.