It's the biggest weekend in Australian sport, and a massive one in racing, with Group 1 action across three days.

And your bumper Best Bets (164 pages!) has got it all covered, kicking off with the Moir Stakes meeting that opens the Valley night season on Friday night.

The Moir itself sees the return of Golden Slipper winner She Will Reign, while a strong support card includes the Stutt Stakes, the Stocks Stakes and the JRA Cup.

Randwick takes centre stage on AFL Grand Final day for a three-pronged Group 1 card. The Epsom, the Metrop and the Flight are the headline acts.

On Sunday there's plenty of quality racing to keep you entertained in the lead-up to the NRL decider, led by the Underwood and the Rupert Clarke at Caulfield.

You'll find Australia's best form guide for Saturday's Mornington, Randwick, Sunshine Coast and Morphettville meetings PLUS the Valley on Friday night PLUS Caulfield on Sunday in this week's Best Bets.

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 ($6) is on sale Thursday morning in newsagents around Australia (Friday in SA, WA and some rural/regional areas).