"Here comes Efficient, he's mowing them down out wide!" There have been just six grey horses to claim the Gr.1 Melbourne Cup, and one of those was the Graeme Rogerson trained Efficient! Winning the Gr.1 Victoria Derby in 2006, his form fell significantly running unplaced until the infamous Melbourne Cup of 2007 where he caused an impressive upset. A feat which hadn't been achieved since fellow Kiwi legend Phar Lap!