Trainer Michael Freedman's already strong arsenal of three-year-olds just got stronger with the Singapore debut win of Masthead in the $65,000 Graduation Stakes over 1000m on the Polytrack on Sunday.

Trainer Michael Freedman's already strong arsenal of three-year-olds just got stronger with the Singapore debut win of Masthead in the $65,000 Graduation Stakes over 1000m on the Polytrack on Sunday.

Leading jockey Joao Moreira added another four-timer to his unstoppable winning streak after he rode Special Encore, Masthead, Freezemaster and Michael to victory in quick succession on Sunday.