Early market moves for racing on March 3 with TAB SPortsbet.

The Australian Guineas is the highlight at Flemington and Helmet is an easing favourite ($2.50 - $3.00). Instinction originally opened up at $41 but is now an $8 chance.

In the Mittys Handicap, Kallogg has had early support and has firmed from an opening quote of $12 to be at $8.50, with the race favourite Under The Hat remaining solid at this point despite drifting slightly from $2.30 to $2.40.

Saturday's Rosehill meeting sees the Hobartville and Silver Slipper Stakes as two of the main races.

Manawanui has shortened in Hobartville betting from his opening quote of $2.10 to be a $2.00 favourite, while Hot Snitzel, who defeated him last time out, drifted out to $8 before being crunched into $5.

Silver Slipper betting sees Pierro remain a hot favourite but there arenibbles for Assassinate ($11 - $9.50) and Nediyms Quest ($11 - $9.50).