The Darren Weir trained filly scored an impressive maiden win at Sale on September 9 at her first run back from a spell following an initial campaign that produced two seconds and a fourth.
A stronger filly this time around, she won at Flemington at her next start and was sent to the post favourite for this 1600 metre contest to make it three wins in a row.
She accelerated smartly from midfield for Craig Williams to win by a length and three-quarter from her stablemates Krone and Verry Elleegant to give champion trainer Darren Weir the trifecta.
"She's been going along really well and she's just taken the right progression after each start," Weir said of Amphitrite.
'She got a lovely run today and it was a terrific win.
"All three ran well."
Weir said it had been the plan for Eurozone filly Krone to back-up in next Saturday's Group I Thousand Guineas at Caulfield while immediately after the race he said he was unsure whether Amphitrite would also head that way.
"I'm not sure about the winner but Krone definitely heads that way, that was the plan all along," Weir said.
"She (Amphitrite) has probably got to go there, I suppose.
"It might just all come too quick and she's got to back-up in seven days.
"I thought she looked great today in the yard, so she might be able to back up."
A $50,000 Magic Millions Adelaide Yearling Sale purchase from the Goldin Farms draft for Flying Start Syndicate/Darren Weir Racing, Amphitrite is the third winner from three to race from Ocean Dream, a Redoute's Choice half-sister to Group I winner Marble Halls. The family has also produced Group I MRC Blue Diamond Stakes winner Sleek Chassis.
The 49th stakes-winner for Sebring, Amphitrite was bred by Goldin Farms and her dam Ocean Dream has been to their stallion Akeed Mofeed (GB) in subsequent seasons.
Sebring has made a fast start to the season with five stakes-winners already on the board with Sesar and Amphitrite joining Miss Admiration, Violate and Master Ash.