Hold It Harvey won by six lengths over 1200m in 1.14.38.
He was one of four winners yesterday for trainer Terri Rae and rider Jamie Bullard.
Hold It Harvey has been freshened since failing in the Zabeel Classic at Ellerslie on December 26.
"Everything went wrong for him at Ellerslie," Rae said.
"He was wiped out early and then forced to race wide before ending up outside the pacemaker, which is not his go.
"He has only got 55kg in the Thorndon and that is the lightest weight he has carried for some two years.
"He is only a little horse and has been carrying 59kg in weight-for-age races," Rae said.
Rae is looking to engage Sam Spratt for the 6yr-old, as Jonathan Riddell, who rode him at Ellerslie, cannot make the weight.
Spratt last rode the horse in the Kit Ormond Memorial Spring Classic at Hastings five starts back on October 2 when he finished fourth to Wall Street.
Hold It Harvey, the winner of 10 races from 46 starts for $404,025, raced at Trentham on December 4 when he was unplaced in the Captain Cook Stakes (wfa, 1600m) in the hands of Bullard.
Rae said the gelding would travel to Wingatui after the Thorndon to contest the $70,000 White Robe Lodge Stakes (open, 1600m) on February 5.
"He is a good traveller and a professional, so he takes all the travelling in his stride," Rae said.
• Paul Taylor, the Pukekohe jockey, suffered severe bruising when he was crushed in the starting gates at the Waipa trials yesterday.
Taylor said he would definitely be back riding at Trentham on Saturday where he has the mount on Ego in the $1 million Telegraph Handicap.
He is also on Zabene in the Trentham Stakes.
"Ego had no chance last start in the Railway at Ellerslie after drawing wide.
"He drops from 57.5kg to 52.5kg at Trentham," Taylor said.
The horse at the trials yesterday tried to climb over the front of the gate, according to Taylor, and he was thrown to the rear.
He was being lifted out of the gates by the starter's assistant when the horse came back and crushed him.
"It could have been a lot worse if I had been down in the gates instead of near the top being held by the assistant."
