Champion mare Winx will run her final race this weekend at Royal Randwick.

The race is expected to be watched on by 40,000 people at Randwick Racecourse as Winx tries to win her 33rd consecutive race.

Wynx’s trainer Chris Waller tells Ray Hadley her retirement is bittersweet.

“We’ve seen the pressures involved and the expectations from everybody… the relief to have her retired going off to be a mum will be something special.

“She could easily race on… but we respect what she has done.

“She’s certainly touched a lot of hearts.”

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Racing NSW Chief Executive Peter V’Landys tells Alan Jones Chris has done an “unbelievable job”.

“I don’t know of any athlete, any horse, anyone for that matter, that could have done what he’s done with Wynx.

“He’s kept her on the top of her game for four years.”

Click PLAY below to hear the full interview