After tracking the pace, the Malibu Moon filly moved to the lead at the quarter pole and drew off through the long stretch to win by 3 1/4 lengths.
Wicked Lick and Vexatious filled the trifecta spots.
Read: Tony Gollan breaks his metropolitan record Read: Avdulla closer to first Sydney premiership Read: Jameka gallops between races at Sandown Read: Racing NSW increases prize money Read: Country horses get their own "Everest"The Ipswich Cup is a feature staying race conducted at Ipswich racecourse in suburban Bundamba by the Ipswich Turf Club as part of the Queensland winter racing carnival.
The Ipswich Cup has a long history with the first running recorded in 1866.
However early records are obscure with the race’s modern history dating from 1948 after being suspended from 1937.
Girvin continued his winning ways while Always Dreaming and Patch emerged as leading Kentucky Derby candidates in weekend prep races as trainer Todd Pletcher mounted a late-season assault on the first of the Triple Crown events.
"He puts a lot of confidence in you," Hernandez said of Girvin.
"Today my biggest thing was when I saw Local Hero settle as well as he did, I wanted to stay behind and give myself a target. Turning for home, he got to switching leads back and forth, but he was kind of just messing around." Jockey Tyler Gaffalione was very happy with Patch's effort -- his first time around two turns in only his third career start.
Girvin, a Tale of Ekati colt trained by Joe Sharp, ran 1 1/8 miles on a fast track in .77 -- good enough time but not eye-catching.
He now has three wins and a second from four starts, all in New Orleans.