Lockwood's galloper Fiery Heights ($4.80) led all the way to beat Taillevent ($21) by a half head with another half head to Dunn's galloper and favourite Snitz ($2.15) in third place in the Simon George Sells Strawberries Handicap (1200m).
Fiery Heights has been in great form since joining Lockwood's Eagle Farm stables where he has now recorded two wins and two seconds.
“He did it very well at both ends today. They were there to run him down but he fought on too well for them,” Lockwood said.
“I suppose we could head south because he is getting plenty of weight here but the summer carnival is coming up so why take on the really big names when there is plenty of money here in the summer.”
“He is a speed horse and as you saw there he can do it at both ends so we can certainly look a bit higher.”
Fiery Heights previously had a reputation for not always performing to his best.
“I showed him my bank balance and that might have done the job,” Lockwood said.
Dunn is headed to the $1.3 million The Kosciuszko at Randwick on Saturday week with Snitz.
“He had his chance but he was first-up and he kept coming. They have run slick time and that should top him off nicely,” Dunn said.
Michael Cahill, who replaced ill rider Ryan Maloney on Snitz, said the gelding would be improved by the effort.
Trainer Robert Heathcote got a treble and denied Lockwood a double when Bold Chance ($3.90) beat I've Gotta Nell ($3.40) by a nose in the Canadian Club Handicap (1050m).
Heathcote had earlier won with Alpine Dancer ($5.50) and Stella Victoria ($1.28).