Brett Prebble's season had been battling to gain real traction again after a suspension late in December, but he was back to joint-third on the jockeys' ladder after a double for David Hall and Caspar Fownes.
Hall himself had a double, winning with Berlinski (Prebble) and later Alpha Grand (Umberto Rispoli), while the Australian rider landed a determined Best Win for Fownes in the ninth to get his own pair.
Berlinski had raced well in two outings, up the straight course on debut and then running on from a wide barrier at 1,200m second-up, and punters sent him out a hot favourite from gate one this time.
He got the job done but in just tradesmanlike style and Prebble said the best of the three-year-old is some way away.
"Nice horse, but still very scared and worried about everything ," he said. "He needs more time but it's good that after putting the writing on the wall the last time he followed through and put it together today. He'll be okay, he just needs some time and David's very patient, he'll give him every chance."
Berlinski won in the colours of well-known owner Sidney Chiu, who has had a happy association with Hall and Prebble through horses like Tchaikovsky, Taverner, Berio, Beethoven and more recently Tarrega.
"Berio's probably close to retirement so it's nice to see Sidney get another one come along who can win races - he always seems to have a handy horse," Hall said. "This guy was a tragedy beaten last start, nothing went right. He's not the finished article, still green and I'm looking forward more to his four-year-old season than anything he does now."
Prebble's second win was also for a good long-time supporter, owner Leung Chung-shan, for whom he and Fownes had won Group races with top-liner Thumbs Up.
"It's great to win for people who support you and he's been terrific for Cas and myself, and this horse really wanted it," Prebble said. "I sat on the back of Sea Diamond and the favourite went very quick when he let down and I thought I was racing for third. But he kept coming and when he was in range and it was going to be a fight, he tried his heart out. You can feel in his action that he's had issues, but the ground was quite forgiving today and that helped him and I said to Caspar that 1,650m Happy Valley might suit. He's normally revvy but was off the bit chasing today."