Simon Miller’s Ascot carnival stocks has been rocked following a horror 48 hours for the stable.

Star mare Lady Cosmology has been retired, Rio Del Mar’s future is in grave doubt and Dance Music’s Winterbottom hopes have been dashed.

Sadly, Lady Cosmology ran her final at Ascot last Saturday when she finished a slashing fourth to The Velvet King in the Group 3 Northerly Stakes (1400m).

“She has been immediately retired,” Miller told The Races WA.

“She tore a tendon and it must have been during the run.

“It’s the best tear of a tendon that I have seen.

“It was that bad there was no other option but to retire her.”

Lady Cosmology won three races and placed on seven occasions from 14 starts for prizemoney of $558.950.

Her signature win came in Adelaide when she won the Group 3 Proud Miss Stakes (1200m) at Morphettville in April.

In Perth the daughter of Universal Ruler took out dual Listed events: the Supremacy Stakes (1000m) and Burgess Queen Stakes (1400m).

The four-year-old also placed second in the Karrakatta Plate (1200m), the WA Sires’ (1400m), the Champion Fillies (1600m) and WA Guineas (1600m).

Dance Music’s bid for the Winterbottom Stakes (1200m) hit a major hurdle after she ran a career-low eighth to Minus Looks at Ascot on the weekend.

“She pulled up very, very sore in the back,” Miller said.

“She will have a few easy weeks now.

“Her fate will be decided later in the week.”

Last season’s Gimcrack Stakes (1100m) winner Rio De Mar commenced a disastrous two days for Miller after a freak track accident at Ascot on Saturday.

“She tore ligaments near her hind leg,” Miller said.

“She is out for six months if not worse.”

Miller admitted the injuries to his stable stars was a blow on the eve of the Ascot carnival.

“It’s left everyone a bit flat, but racing is a great leveller,” Miller said.

“You spend months planning and preparing, it’s very disappointing for all concerned.”

Despite the setback, Miller’s team still maintains quality horseflesh that will play major roles in Perth and Melbourne in the forthcoming weeks.

Niccovi and Amelia’s On Fire race across Friday and Saturday at Moonee Valley this weekend.

Valour Road will launch is racing return in the Prince Of Wales Stakes (1000m) on November 2.

He will be joined by Flirtini, third to Fabergino in Saturday’s Crawford Stakes (1000m).

Boomtastic is on a Burgess Queen (1400m) path after posting back to back wins at Bunbury and Ascot.

Platinum Bullet will nominate for Saturday’s Belgravia Stakes (1200m).

Julio Santarelli