O’Brien’s High Definition facing strong foreign opposition in Irish Derby

Mojo Star and Godolphin’s Hurricane Lane among 17 entries left in €1m classic

Ontario the latest Dee day contender for Aidan O’Brien

Trainer looking to win Derby trial for seventh time in the last nine runnings

Master Of The Seas sets sail to secure Craven Stakes at Newmarket

Godolphin dominate race as La Barrosa comes home in second place

Ghaiyyath retired to stand as a stallion at Kildangan Stud

World’s top-rated horse won prestigious Coronation Cup and the Eclipse this season

Ghaiyyath confirmed for Irish Champions Stakes at Leopardstown

The world’s top-rated racehorse will provide headline act to Irish Champions Weekend

Ghaiyyath set to add considerable sparkle to Irish Champions Weekend

World’s top-rated racehorse is one of 13 entries for Saturday’s Irish Champion Stakes at Leopardstown

Circus Maximus bidding for back-to-back wins in vintage Moulin

Saturday morning gallop will decide if Ghaiyyath goes to Irish Champion Stakes

Quarantine to be lifted for jockeys taking part in Irish Group One races

Change in Government protocols made ahead of Irish Champions Weekend

Aidan O’Brien hoping Magical can make seven the magic number in Juddmonte

Trainer looking for another York victory to break deadlock with Michael Stoute

Enable to have British swansong at Kempton

A third victory at the Prix de l’Arc de Triomphe remains the objective for the mare

Enable can’t reel in impressive Ghaiyyath at Sandown

Aidan O’Brien’s Japan third as William Buick delivers a fine ride in Coral-Eclipse

Aidan O’Brien favourite for leading trainer at Ascot

Five-day extravaganza radically revamped with six extra races and revised run order

Ghaiyyath blazes a trail to take Coronation Cup at Newmarket

Aidan O’Brien’s Anthony Van Dyck comes home second in Group One contest

Forever In Dreams leads big names for return of racing at Naas

Aidan Fogarty-trained horse among 236 entries for next Monday’s resumption

Iridessa gives Joseph O’Brien landmark win at the Breeders’ Cup

26-year-old the youngest trainer to saddle a Breeders’ Cup winner in Filly & Mare Turf

Stratum lands Cesarewitch at Newmarket for Willie Mullins

25-1 winner comes after another impressive performance from the unbeaten Pinatubo

Pinatubo set to finish unbeaten season on a high

Emphatic National Stakes winner now primed for Darley Dewhurst Stakes

Pinatubo puts in one of the great juvenile performances

Appleby-trained colt cut to 6-4 for the Guineas after thrilling nine-length rout

Vaughan targeting Sweet success with Ultra Violet

Trainer hoping for a ‘big run’ from filly in Sweet Solera Stakes at Newmarket

Stradivarius to strike the right note in Goodwood Cup

Stradivarius favourite to claim hat-trick in Tuesday’s race

Iridessa bounces back in style to take Pretty Polly Stakes at the Curragh

Joseph O’Brien-trained filly claims second Group One of her career

Blue Point and Masar make it a major Royal Ascot day for Godolphin

Jim Bolger saddles South American import in Wokingham Handicap

Circus Maximus crowns fine day for Aidan O’Brien at Royal Ascot

Trainer opens account for week with Arizona as number one Ryan Moore returns to form

Anapurna and fantastic Frankie deny Pink Dogwood in the Oaks

Aidan O’Brien denied double Grade One glory as Defoe swoops to pip Kew Gardens

Aidan O’Brien double-handed for Newmarket 2000 Guineas

Magna Grecia and Ten Sovereigns head a 19-strong field for Saturday’s Classic

Aidan O’Brien’s Magna Grecia confirmed for 2000 Guineas

Colt a 3-1 antepost favourite for Newmarket as trainer looks for a record 10th win in race

O’Brien: Cliffs of Moher death is sad but incident may have been worse

Trainer hoping for a better experience on Saturday with Latrobe at Flemington Park

Aidan O’Brien’s focus switches to potential first Melbourne Cup win

Yucatan set to lead Irishman’s three-pronged assault on ‘race that stops a nation’

Europeans come up short at Breeders Cup

First day not one to remember for Aidan O’Brien and European raiders

Princess Yaiza looks set for Breeders’ Cup after Paris triumph

Gavin Cromwell’s three-year-old claimed a French success in the hands of Andrea Atzeni

Flag Of Honour comes to O’Brien’s rescue in Irish Leger

Skitter Scatter provides Prendergast and Whelan with first Group One at the Curragh

Wild Illusion takes Nassau Stakes as Aidan O’Brien’s Rhododendron struggles

Goodwood: Trained by Charlie Appleby and ridden by William Buick, the 4-1 shot stepped up

Tim Brennan to face BHA disciplinary panel on Monday

Willie Mullins’s vet accused of passing on information to his brother on Faugheen injury

Epsom hero Masar set to miss Irish Derby

Saxon Warrior now odds-on chance to give O’Brien his 13th victory in Irish Classic

Hopes grow for protocol which permits comprehensive testing of thoroughbreds

Godolphin appears to backtrack on its initial impulse that Masar would run in Irish Derby

Study Of Man takes French Derby as Aidan O’Brien misses out

Pascal Bary’s colt takes Chantilly Classic with O’Brien’s four runners all failing to place

Masar gives Godolphin first Epsom Derby as Saxon Warrior falters

No excuses for Aidan O’Brien as Appleby and Buick combine for famous Classic victory

Breeders’ Cup: Gun Runner blasts from gate to seal Classic success

Front-running display secures big race win for Steve Asmussen’s charge at Del Mar

Winter is coming: Aidan O’Brien says ‘sky is the limit’ for filly

‘She might even get further but she’s a great filly and she’s progressed with every run’

Candy to make late call on running Limato in Lennox Stakes

Trainer says five-year-old is in tremendous form and will only run if ground is suitable

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