Multiple Group One-winning Irish rider Pat Smullen has announced his retirement from the saddle on medical advice.

Despite drawing in the second half of the field, the Phillip Stokes-trained Mr Quickie remains favourite for the Group One South Australian Derby.

Racing authorities have denied an appeal by Maximum Security’s owner against the colt’s Derby disqualification saying stewards are not subject to such action.

Owner Gary West has confirmed he will appeal Maximum Security’s disqualification as the Kentucky Derby winner for causing interference.

The Listed Redoute’s Choice Stakes for two-year-olds at Caulfield has attracted 23 nominations including the filly Moldova who is unbeaten from two starts.

Crowd favourites Tom Melbourne and Destiny’s Kiss head the entries for the Listed Scone Cup.

Outsider Country House has been declared the winner of the Kentucky Derby after the disqualification of Maximum Security.

Nobu’s Queensland Derby mission is back on track after his comprehensive win at Randwick over stablemates Duchess Of Lennox and Ombudsman.

Sydney mare Spright has come with her trademark whirlwind finish to claim the Sangster Stakes and complete a Group One Adelaide double for jockey Damien Oliver.

Apprentice Lachlan King has been taken to hospital after a fall in a race at Flemington.

The David Brideoake-trained Princess Jenni has responded to Damien Oliver’s riding to win the Group One Australasian Oaks in Adelaide.

Apprentice Chris Williams has ridden his first Saturday winner at Randwick, steering Zonk for his boss Les Bridge.

Coldstone’s has won the Australian Turf Club Cup for Tony Gollan on a day the trainer had scratch star three-year-old Zoustyle.

Fastnet Tempest has had to survive a protest from the rider of runner-up Addictive Nature to claim his first win in more than a year at Flemington.

Fidelia has finished strongly to come from last to win a 1410m race for three-year-old fillies at Flemington, impressing apprentice Ethan Brown.

The Mark Newnham-trained Splintex has backed up a solid third on debut with victory in the two-year-old maiden at Randwick.

Gary Newham has continued his success with Winning Ways who is Oaks bound after winning the Gold Coast Bracelet.

Stronger has lived up to his name when he overhauled the odds-on favourite Accession to win the Group Three Ken Russell Memorial Classic at the Gold Coast.

Serengeti Empress has bounced back from a bleeding attack at her previous start to lead all the way in the Kentucky Oaks at Churchill Downs.

Champion trainer Chris Waller has continued his domination of Queensland staying races with The Lord Mayor winning the Gold Coast Cup.

Hugh Bowman has confirmed he will not ride again until the new season after an exhausting few months including the farewell campaign of champion Winx.

Aquis Farm has announced Pierata’s stud career has been deferred and the All Aged Stakes winner will be aimed at The Everest.

Trainer Liam BIrchley wants a genuine pace to give Fit For Purpose his best chance in the Hollindale Stakes at the Gold Coast.

Trainer Bob Baffert now has the first three in the market for the Kentucky Derby after the scratching of Omaha Beach as he chases a record-equalling sixth win.

Jockey Ben Allen has been suspended for using the whip 11 times before the 100m mark in his winning ride on Akamon at Warrnambool.

Trainer Matt Dunn believes filly Rocknavar is not getting the chance to show her best because of a series of bad barrier draws.

Kentucky Derby favourite Omaha Beach has been scratched after being found to have an entrapped epiglottis, a condition which hampers breathing.

Melbourne Cup winner Dunaden has died aged 13 following complications after a paddock accident at stud in England.

Menari is closer to a return to racing after he was put through his paces in a special gallop at Warwick Farm.

Its Kentucky Derby time, and all eyes will be on the 4/1 favourite Omaha Beach in emulating that ‘equihero’ Smarty Jones, having also won the Arkansas Derby and the Rebel Stakes en-route to this 145th Run For The Roses.