Hawkesbury trainer Blake Ryan is known for sourcing nice yearlings and turning them over at the two year-old breeze up sales, but a Written Tycoon colt purchased from Inglis Easter for $425,000 has remained in the stable and made a winning debut at Gosford on Thursday.

The Listed John Turkington Forestry Castletown Stakes (1200m) was one of the few age-group features in the lower North Island that was missing from Lisa Latta’s CV, but the fast-improving filly Platinum Diamond dealt to that unfinished business at Otaki on Friday.