By Mathew Toogood

SYDNEY Aug 28 AAP - Chris Waller only had runners in one of the four feature races at Rosehill on Saturday but that was all he needed to claim another stakes victory.

A week after training the trifecta in the Group Two Warwick Stakes, Waller produced Snow Alert to win the Listed Premier's Cup (1800m) by a length over Scouting Wide in race record time.

The in-form Rosehill trainer is keen to test Snow Alert over more ground this preparation and believes if the dual Listed winner can stretch to 2400m he is capable of becoming a genuine Group One or Group Two contender.

"I think he can get further and if he can he could be a Group Two or even Group One horse, who knows," Waller said.

Damien Oliver was instructed to be positive on Snow Alert ($5) from his wide barrier, with Waller frightened favourite Scouting Wide ($3.50) would be able to dictate in front on his own terms.

Snow Alert went forward three wide in the early stages until Oliver was able to get the five-year-old one off the fence just behind Scouting Wide in the lead.

Tye Angland had his rivals chasing on Scouting Wide approaching the home turn but Snow Alert stayed in touch and hit the front shortly after straightening.

It was the first time Snow Alert had raced over further than 1600m and he was strong to the line in the 1800m contest.

"It was a good staying test today because the leader had them off the bridle turning for home," Waller said.

"We're a good miler and we were off the bridle too, just, but he managed to stay there and it was a very good win.

"He's come back really well this time in, and he went out that way too at the end of last preparation."

Snow Alert will be nominated for Friday's Listed Wyong Gold Cup (2100m) with the Group Three Newcastle Gold Cup (2300m) on September 16 also being targeted.

The Group One Metropolitan Handicap (2400m) later in the spring is also being considered if he continues to handle the rise in distance.

Trainer Tim Martin said Scouting Wide would have his next start in the Newcastle Cup.

"It was a good honest run from him today and as the races get further he'll get better," Martin said.

The Mike Moroney-trained Abitofado finished third, half a head behind Scouting Wide.