Jesinta Franklin has turned heads as she arrived at Randwick Racecourse ahead of champion mare Winx's final race.

The Longines Queen Elizabeth Stakes ambassador has been pictured wearing a shimmering strapless silver Toni Maticevski dress with pointed black strappy heels.

She's slicked her blonde locks back, holding the look in place with a dainty Nerida Winter headband.

Her makeup artist Michael Brown told news.com.au he then finished the look with a "granite smoky eye."

"It's something different for her," he said.

She's one of many Aussie star's who will be at the iconic race day to watch history happen, as Winx takes to the tracks for the final time.

The horse has been on an incredible four year winning streak, taking the crown for all of the 32 races she's taken part in.

More than 40,000 spectators are gathering at the sold-out event today to witness her last ever race before she retires and see if she's able to hold onto her amazing track record.

Jesinta - who posed with Winx at the same even in 2018 - was joined by singer Samantha Jade and fellow ambassador Kate Waterhouse at a special three-course luncheon held by sponsor, Longines, before the race.

"I mean, Winx is the star of the show and I am really looking forward to being trackside with Longines over the weekend, to be able to see her win hopefully her final race," she told Vogue Australia ahead of today's event.

On Thursday, Jesinta rocked another stunning race day ensemble as she performed duties as part of her Longines ambassador role.

Wearing a nude coloured gown with a floral lace detail on Thursday, she posed alongside Happy Clapper who will be running against Winx.

She's teamed the classic look with a funky burgundy hat, a structured belt and some head-turning heels.

She kept her makeup in line with the natural tones too and accessorised with a few glistening pieces of jewellery, including chunky diamond studs.

This year marks six years for the Swiss watch makers have been a Title Partner, Official Timekeeper and Official Watch of the Longines Queen Elizabeth Stakes Carnival.

Continue the conversation @RebekahScanlan | rebekah.scanlan@news.com.au