Co-trainer Grant Williams said promising filly Bright Diamond emphasised her versatility with a storming victory at Belmont on Wednesday.

The I Am Invincible three-year-old won against a leader-bias when she descended from last position in the Penfolds Handicap (1200m).

Keeping her unbeaten record intact, Bright Diamond charged home for jockey William Pike to defeat Puckapunyal by a half-length with 1 ¼ lengths to Rewrite The Stars.

On debut last month Bright Diamond was ridden up on the pace before scoring a strong win over She’s Enchanted, a subsequent winner at her next start.

Williams, who prepares Bright Diamond with partner, Alana, said it was a top win.

“It was a super effort to see how she adapted to the two starts that she’s had,” Williams told The Races WA.

“I didn’t think she could win from there, but it was a super effort.

“The extra couple of hundred metres helped us travel a little bit more, although we had to do it the hard way.

“The first-up run over 1000m she was off the bridle a little bit and had to sort of do it a bit harder.”

Bright Diamond gave Pike his sole victory on the card, one he considered unlikely at the top of the straight.

“Willie was really happy and said it was a real good effort.

“She let down well and shouldn’t have been able to win from where she was.”

With two mid-week wins locked away, Bright Diamond will progress to Saturday grade.

“Obviously have to speak with Bob (Peters) and see how she pulls up, but hopefully we can go to a Saturday three-year-old race.

“She definitely has a lot of upside to her and someone we can get excited about down the track, but it’s still early days.”

Meanwhile Williams said highly-rated stable mate Windstorm was on track to go one better in the Crown Perth Handicap (1300m) at Belmont on Saturday.

Ultra impressive in winning his opening two races last year, the Redoute’s Choice gelding was runner-up to Indian Pacific when first-up on May 30.

“He has taken no harm from his first-up run and his sectionals in the race were super,” Williams said.

“Hopefully we can get a little bit of tempo early and he can come home and clock up a win.”

Regardless of Saturday’s result, Williams said Windstorm would not back up in Saturday week’s Belmont Guineas (1600m).

“I wouldn’t have thought so,” Williams said.

“With the rating points and all that if he happened to win he would blow too many.

“He needs a bit of race experience as well and Bob (Peters) is pretty keen to get that under his belt and make him a nice horse at the end of the year hopefully.”

Windstorm is the $1.50 favourite to return to the winner’s list.

The rising talent could set the tone for the Williams stable with Mississippi Delta the $3.60 market leader in the Group 3 Hyperion Stakes (1600m).

Julio Santarelli