
The Pukekohe trainer had earlier produced Melt to claim the Group III Barneswood Farm Eclipse Stakes (1200m) and her older barn mate completed a stakes double when he triumphed under jockey Jason Waddell in the Group II Jamieson Park Great Northern Guineas (1600m).
"The further they go the better he'll be," Tiley said. "I'm looking forward to the autumn."
Demonetization has the Group I Vodafone New Zealand Derby (2400m) as his grand final, but Tiley has yet to lock in the All Too Hard three-year-old's path to the March feature.
"I have to choose whether we go to Wellington or not, that would give a nice break to the Avondale Guineas and then the Derby," Tiley said.
The Trentham option is the Gr.1 Levin Classic (1600m) on January 13.
Demonetization won his first two starts before finishing third in last month's Listed Trevor Eagle Memorial (1500m). He raced off the pace on that occasion and was unsuited when it developed into a sitand sprint contest.
"Jason and I had a talk and we decided to change our tactics today so he went forward," Tiley said.
In a race run in driving rain on a Slow 7 track, Demonetization was in front 400m from home and he held a strong gallop to have a length and a-quarter on Endowment at the line with On The Rocks taking third money.
"He has won on a wet track before, it's not ideal but he's pretty adaptable," Tiley said.

A veteran of the sale ring, Demonetization was first sold at the Inglis Australian Weanling Sale where he was snapped up from the Holbrook Thoroughbreds draft for $65,000 by Bruce Perry Bloodstock, before being re-offered at the NZB Premier Yearling Sale by Blandford Lodge where he made $160,000 when bought by 888 Bloodstock.
He finally went through the ring again for the NZB Ready to Run Sale where Mana Park sold him for $220,000 to the N & P Balia Family Trust
Bred by Bob and Sandra Peters, Demonetization is a half-brother to their stakes-winner Neverland and is the third winner from winning Zabeel mare Midnight Special, a full sister to Group III winner Rainbow Styling and half-sister to Group III winner Zingaling.
Demonetization is the fourth stakes-winner for All Too Hard, who has big representation at upcoming sales with 33 for Magic Millions, 17 for Inglis Classic and 15 for Inglis Premier.
