Knight’s Choice has won the Melbourne Cup in a massive boilover, prevailing in a photo finish from Japanese raider Warp Speed.

Ridden by Irish expat jockey Robbie Dolan, Knight’s Choice surged past his rivals and hung on in a thrilling finish for trainers John Symons and Sheila Laxon.

Noboru Takagi’s Warp Speed was second by a nose, with in-form jockey Jamie Kah third on Okita Soushi.

It was Dolan’s first win in the race that stops a nation.