Trainers Murray Baker and Andrew Forsman and jockey Matthew Cameron are a Group One trio not to be trifled with.

At Ellerslie last Thursday they struck gold with Lizzie L'Amour in the New Zealand Stakes and at Trentham on Saturday they successfully combined with Bonneval in the Wellfield New Zealand Oaks.

The Makfi filly continued her winning roll following lead-up victories in the Gr.2 Sir Tristram Fillies' Classic and the Gr.3 Lowland Stakes.

"She's a beautiful filly and she doesn't need to do any more this preparation," Forsman said.

"She's only going to get better as an older mare as well."

Bonneval, who was also crowned the New Zealand Bloodstock Filly of the Year at Trentham, settled toward the rear of the field before Cameron made a move 1000 metres from home.

"They went quickly enough early and Matt had to get rolling on her and ride her like the best stayer in the race," Forsman said.

Bonneval got to the front early in the run home and she proved too good for a game Devise in the closing 100 metres.

"I got a long way back and the speed was genuine before they buttoned it off 1200 metres out so I decided to get going," Cameron said.

"She's a class filly and when she got to the front she pricked her ears."

Raced by Alister Lawrence, Terry Jarvis and John Rattray, Bonneval is a sister to the Group Three winner Imposing Lass and a half-sister to the Group Three winners Full Of Spirit and Lady Cumquat.

Devise, whose half-sister Zurella finished runner-up in the Oaks five years ago, enjoyed a good run near the pace and she fought on grimly with Savvy Dreams taking third ahead of the winner's stablemate Nicoletta.