Hey Doc is poised to claim his career best win in Saturday’s Australian Guineas at Caulfield.

The Tony McEvoy trained three-year-old has opened $4.50 favourite with online bookmaker sportsbet.com.au.

Comin’ Through is the $9.00 second favourite, but he is likely to start in the Randwick Guineas instead.

Comin’ Through heads betting for the Randwick Group 1, ahead of Inference ($5.50) and last start winner Man From Uncle ($6.00).

“Hey Doc is definitely the one to beat, especially with Chris Waller favouring a Sydney start for Comin’ Through. Hey Doc was super impressive last start, is a Group 2 winner and looks ready to make the step up,’’ said sportsbet.com.au’s Will Byrne.

Markets courtesy of  Sportsbet

Australian Guineas

$4.50   Hey Doc

$9.00   Comin’ Through

$11      Morton’s Fork

$13      Land Of Plenty

$13      Theanswermyfriend

$13      Divine Prophet

$13      Ellicazoo

$15      Harlow Gold

$15      Attention

Others Quoted

Randwick Guineas

$4.60   Comin’ Through

$5.50   Inference

$6.00   Man From Uncle

$6.00   Prized Icon

$8.00   Echo Effect

$9.00   Invincible Gem

$11      Divine Prophet

$12      Malaise

$12      Acatour

$13      Harlow Gold

Others Quoted