It was extended to 2,200 metres and given Group 3 status in 1988.

The runway was extended to 1200 metres and completed on 2 March 1987.

In 1950 the main runway was extended to 2475 metres.

The distance of the race was extended to 2,100 metres in 1925.

The race's distance was extended to 2,700 metres in 1973.

It was extended to 1,400 metres and given Group 3 status in 1977.

It was extended to 2,000 metres and promoted to Group 1 status in 2000.

The race was extended to 1,450 metres in 1998.

In early 2009 the circular walk was extended to 1,100 metres with around 120 exhibits.

The distance of the race was extended to 1,800 metres in 1961.