A star-studded field of 13 has been declared for the Group One TJ Smith Stakes at Randwick with Nature Strip drawing barrier one.

One of four Group One races on Saturday's opening day of The Championships at Randwick, the weight-for-age TJ Smith (1200m) features a number of star sprinters including Newmarket Handicap winning colt Bivouac (barrier 6) and outstanding filly Loving Gaby (13).

Defending champion Santa Ana Lane has drawn barrier two with dual Everest winner Redzel to jump from the next widest gate.

The Australian Derby has attracted a field of 12 with last-start Rosehill Guineas winner Castelvecchio drawing barrier nine.

Shadow Hero, winner of the Spring Champion Stakes and Randwick Guineas at Group One level at the course this season, has barrier seven.

Victoria Derby winner Warning has gate 10, New Zealand Derby winner Sherwood Forestr 12 while Tulloch Stakes winner Quick Thinker has drawn barrier six.

Golden Slipper third placegetter Mamaragan has been paid up as a late entry for Saturday's Group One Sires' Produce Stakes (1400m) for two-year-olds and has barrier two in a field of 15.

Prague has drawn the outside barrier while Aim has the inside.

The Doncaster Mile has attracted a capacity field of 20 plus four emergencies with six-time winning trainer Chris Waller having eight runners plus third emergency Reloaded.

Star New Zealand mare Melody Belle has drawn 14 in the Doncaster and is joint topweight on 57kg with the Waller-trained Kolding.

The meeting will be held behind closed doors under strict biosecurity conditions amid the coronavirus pandemic.