They have both trained and worked together for the giants of the bloodstock world and on Saturday they shared the spoils of stakes racing at Hawkesbury.

But Peter Snowden and John Hawkes will have even more in common on Sunday.

Snowden will join his ex-Crown Lodge boss in the ranks of Sydney's public trainers after completing six years at the helm of Sheikh Mohammed's Darley operation.

And like Hawkes who teamed up with family after leaving Bob Ingham's Woodlands which was later sold to the sheikh, Snowden will link with his son Paul in a training partnership out of Randwick.

"There are no regrets because I'm looking forward to the challenge of setting up a new stable," Snowden said.

If Snowden needs any inspiration, Hawkes might have provided some on Saturday, training Leebaz to win the Hawkesbury Gold Cup and Chautauqua to win the Hawkesbury Guineas.

Snowden trained three winners, landed one quinella and had his trio of runners fill the first three placings in the opening race and it was fitting he shared the Hawkesbury spotlight with Hawkes.

Hawkesbury chief executive Brian Fletcher said his club was indebted to Snowden and Hawkes for their support when he first came up with the idea to run a Saturday race meeting.

"I remember going to Peter when he was with the Inghams and asked him if he could help because it was important for the club to attract quality horses," Fletcher said.

"He made sure we got the horses and that has continued through with his time at Darley. We owe him a lot."

Hawkes followed up his Cup win with Chautauqua's victory in the Guineas in circumstances similar to how the stable won last month's Golden Slipper with Mossfun.

Backed from $6.50 to start favourite at $4, Chautauqua responded to a rails-hugging ride from the same jockey, James McDonald.

Chautauqua was among the tail-enders early but McDonald saved many lengths in a ride that drew rare praise from Hawkes.

"He's very patient and he knows what our horses can do but he's a super young rider," Hawkes said.

Tipped to be a better four-year-old, Chautauqua beat New Zealand filly Katie's Cove by 1-1/2 lengths with the Snowden-trained Barbed ($11) another 1-1/4 lengths away third.

Appropriately, Snowden won the Darley Crown with Aerobatics to follow up wins in the maroon and white colours with Generalife and Meursault.

But he was denied the perfect send off when Limes, his last runner for Darley, just missed a place in the final race.