Australasia's weight-for-age championship is here, with a new, one-off venue (Flemington) as Sir Delius looks to become the first winner of the great race for training legend Gai Waterhouse.

The Drummond Golf Vase for the derby hopefuls, the Fillies Classic, the Crystal Mile and the Moonee Valley Gold Cup are on the undercard, while at Randwick the features are the Group 1 $2 million Spring Champion, the $2 million Invitation for fillies and mares and the $1 million Callander-Presnell for the three-year-old milers.

The weekend kicks off with The Valley's Cox Plate eve card at Cranbourne on Friday night.

You'll find Australia's best form guide for Saturday's The Valley @ Flemington, Randwick, Doomben and Morphettville meetings in this week's Best Bets, plus coverage of The Valley @ Cranbourne Friday night.

On pages 4 and 5 you'll find four-state selections from some of the nation's leading form analysts as well as our popular Black Bookers, Sectional Stars and Video Stars features.

Best Bets ($7) is on sale Thursday morning in NSW newsagents, Friday elsewhere.