Hawksot arrived at Lindsay Park's Euroa stable earlier in the week, a transferee from disqualified trainer Darren Weir.
“Weiry and I spent four runs riding him quietly getting him to relax,” Zahra said.
“He's with Lindsay Park now and we took him straight to the front. He relaxed beautifully and was never going to lose.
“The mile won't be any issue.”
Sent off a $6.50 chance, Hawkshot kicked clear on straightening in recording a 3-3/4 length win from Deal Maker ($6.50) with another former Weir runner Ringerdingding ($4.60) a length away third.
Co-trainer Ben Hayes said the stable relied heavily on Zahra as they endeavour to learn more about the gelding.
“It was important the input from Mark as the horse has only been in our yard since Monday,” Hayes said.
“He came to us looking a million dollars and he ran very well and on that he looks a genuine chance in the Guineas.”
Hawkshot had his price slashed from $26 to $8 and will be joined on a Guineas path by Lindsay Park stablemates Good ‘N' Fast, eighth on Saturday, Mickey Blue Eyes and More Sundays.