On a good day for British raiders at the Curragh Tim Pitt's Sir Maximilian (11-1) arrived fast and late to deny the front-running Epsom Dash winner Caspian Prince in the valuable Rockingham Handicap.
Caspian Prince, as is his wont, blasted out of the stalls and held a couple of lengths advantage for much of the race.
My Good Brother gave chase but the main danger was down the middle of the track as Sir Maximilian and Stevie Donohoe were making relentless progress.
In the end they ran out impressive one-length winners from Caspian Prince with My Good Brother third and Lady Mega fourth.
Pitt said: "He'd have won the Wokingham I had him in such good form but he missed the cut. I was silly to run him in a Group Three after that..
"I was worried about the ground, it's not that he needs cut he just lacks a bit of early pace and if something gets an early run on him he can struggle to get them back.
"He does get six furlongs but a fast-run five suits him as well, he's able to keep tabs on them and pick them up.
"My only other runner in Ireland finished stone last in the Goffs Million so this is great.
"He's in the Stewards' Cup (32Red) but won't go if it's rattling quick. His main aim is the Ayr Gold Cup."
RaceBets cut Sir Maximilian to 25-1 from 33-1 for Glorious Goodwood.