Australian sprinter Black Caviar stretched her unbeaten run to 21 with an effortless victory in the Group One Goodwood at Morphettville.

Having her final run before flying over to England for the Diamond Jubilee Stakes at Royal Ascot, Peter Moody's superstar never came off the bridle.

There was no pace on early which allowed Luke Nolen to hit the front at his leisure before turning into the straight.

With connections keen not to ask too much of her with her biggest assignment to date looming large, Nolen kept a tight hold of her head and while the winning distance of just over a length was not as far as her fans have become accustomed to, there was never a worry.

Nolen said: "We were never out of second gear."