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Home / Free Data / Aidan O'Brien / at Chester

trainer at course

Aidan O'Brien at Chester

Updated 14 October 2026

The answer

  • What is Aidan O'Brien's record at Chester? Aidan O'Brien has trained 32 winners from 70 runners at Chester since January 2016 (46%). The latest winner there was Lambourn (IRE) on 8 May 2026.
  • How does Aidan O'Brien's record at Chester compare with other courses? At Chester, Aidan O'Brien has a 45.7% strike rate against 19.9% at all other British and Irish courses since 2016.
  • Which jockey has ridden the most winners for Aidan O'Brien at Chester? Ryan Moore, with 31 wins from 46 rides (67%) together at Chester since 2016.
  • Which horse has won most often at Chester for Aidan O'Brien? Lambourn (IRE), with 2 wins from 2 runs (100%) there since 2016.
Record at Chester since 2016
32 wins from 70 runs (46%)
Prize money at Chester
£2,198,112 GB
Last winner here
8 May 2026: Lambourn (IRE)
Runs here since last winner
None: the latest runner here won

Chester v everywhere else

RacesAt ChesterOther courses
All races32 wins from 70 runs (46%)1,474 wins from 7,395 runs (20%)

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By season

SeasonRunsWinsWin %PlacedPlace %Prize money
Flat 20269555.6%666.7%£444,901 GB
Flat 20256466.7%466.7%£285,440 GB
Flat 20248337.5%675.0%£230,625 GB
Flat 20235360.0%480.0%£217,723 GB
Flat 202255100.0%5100.0%£251,819 GB
Flat 20215240.0%360.0%£122,494 GB
Flat 20197228.6%571.4%£161,058 GB
Flat 201811327.3%654.5%£198,447 GB
Flat 20178337.5%787.5%£180,818 GB
Flat 20166233.3%350.0%£104,789 GB

By race type

Race typeRunsWinsWin %PlacedPlace %Prize money
Flat Turf · non-handicap673044.8%4770.1%£2,107,695 GB
Flat Turf · handicap3266.7%266.7%£90,417 GB

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By distance

DistanceRunsWinsWin %PlacedPlace %
9f to 11f221359.1%1568.2%
12f to 13f471838.3%3370.2%
14f and over11100.0%1100.0%

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By going

GoingRunsWinsWin %PlacedPlace %
Good to Firm / Firm3133.3%266.7%
Good462043.5%3167.4%
Good to Soft / Yielding12650.0%975.0%
Soft9555.6%777.8%

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By month

MonthRunsWinsWin %PlacedPlace %
May703245.7%4970.0%

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By class

ClassRunsWinsWin %PlacedPlace %Prize money
Group 25360.0%480.0%£250,687 GB
Group 3321237.5%2371.9%£1,020,511 GB
Listed281450.0%1864.3%£814,201 GB
Class 22150.0%2100.0%£86,866 GB
Class 33266.7%266.7%£25,847 GB

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Horses with the most wins at Chester

HorseRunsWinsPlacedLast win hereLast run here
Lambourn (IRE) silksLambourn (IRE)2228 May 268 May 26
Point Lonsdale (IRE) silksPoint Lonsdale (IRE)2229 May 249 May 24
Jan Brueghel (IRE) silksJan Brueghel (IRE)1117 May 267 May 26
Constitution River (FR) silksConstitution River (FR)1117 May 267 May 26
Amelia Earhart (IRE) silksAmelia Earhart (IRE)1116 May 266 May 26
Benvenuto Cellini (IRE) silksBenvenuto Cellini (IRE)1116 May 266 May 26
Mount Kilimanjaro (FR) silksMount Kilimanjaro (FR)1118 May 258 May 25
Minnie Hauk (IRE) silksMinnie Hauk (IRE)1117 May 257 May 25
Romantic Thor (USA) silksRomantic Thor (USA)1119 May 249 May 24
Gallantly (GB) silksGallantly (GB)1118 May 248 May 24
San Antonio (IRE) silksSan Antonio (IRE)11111 May 2311 May 23
Savethelastdance (IRE) silksSavethelastdance (IRE)11110 May 2310 May 23
Cleveland (IRE) silksCleveland (IRE)1116 May 226 May 22
Star Of India (IRE) silksStar Of India (IRE)1115 May 225 May 22
Temple Of Artemis (IRE) silksTemple Of Artemis (IRE)1115 May 225 May 22
Thoughts Of June (IRE) silksThoughts Of June (IRE)1114 May 224 May 22
Armory (IRE) silksArmory (IRE)1117 May 217 May 21
Japan (GB) silksJapan (GB)1116 May 216 May 21
Circus Maximus (IRE) silksCircus Maximus (IRE)1119 May 199 May 19
Sir Dragonet (IRE)1118 May 198 May 19

Jockeys at Chester

JockeyRidesWinsWin %PlacedLatest
Ryan Moore463167.4%408 May 26
Donnacha O'Brien7114.3%49 May 19
Seamie Heffernan600.0%29 May 18
Wayne Lordan500.0%17 May 26
William Buick400.0%18 May 25

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Biggest wins at Chester

DateHorseRaceClassDistJockeySPPrize
8 May 26Lambourn (IRE) silksLambourn (IRE)Deepbridge Huxley StakesGroup 21m2½fRyan Moore6/4F£96,407
12 May 23Point Lonsdale (IRE) silksPoint Lonsdale (IRE)IRE-Incentive It Pays To Buy Irish Huxley StakesGroup 21m2½fRyan Moore5/6F£67,224
7 May 21Armory (IRE) silksArmory (IRE)Melodi Media Huxley StakesGroup 21m2½fRyan Moore6/5F£56,710
7 May 26Jan Brueghel (IRE) silksJan Brueghel (IRE)Ladbrokes Ormonde StakesGroup 31m5½fRyan Moore4/7F£85,065
6 May 26Benvenuto Cellini (IRE) silksBenvenuto Cellini (IRE)Boodles Chester Vase Stakes (Colts & Geldings)Group 31m4½fRyan Moore2/9F£82,230
8 May 25Illinois (IRE) silksIllinois (IRE)Ladbrokes Big-Value You Can Bet On Ormonde StakesGroup 31m5½fRyan Moore6/5F£79,394
7 May 25Lambourn (IRE) silksLambourn (IRE)Boodles Chester Vase Stakes (Colts & Geldings)Group 31m4½fRyan Moore11/8F£79,394
9 May 24Point Lonsdale (IRE) silksPoint Lonsdale (IRE)tote.co.uk Supporting Racing Ormonde StakesGroup 31m5½fRyan Moore13/8F£78,428
4 May 22Changingoftheguard (IRE) silksChangingoftheguard (IRE)Boodles Chester Vase Stakes (Colts & Geldings)Group 31m4½fRyan Moore100/30£62,381
8 May 19Sir Dragonet (IRE)MBNA Chester Vase Stakes (Colts & Geldings)Group 31m4½fDonnacha O'Brien13/2£56,710
10 May 18Idaho (IRE)Boodles Diamond Ormonde StakesGroup 31m5½fRyan Moore8/11F£56,710
6 May 21Japan (GB) silksJapan (GB)tote+ Pays You More At tote.co.uk Ormonde StakesGroup 31m5½fRyan Moore13/8F£45,368
11 May 17Venice Beach (IRE) silksVenice Beach (IRE)MBNA Chester Vase Stakes (Colts & Geldings)Group 31m4½fRyan Moore5/2F£42,533
11 May 17Deauville (IRE) silksDeauville (IRE)sportingbet.com Huxley StakesGroup 31m2½fRyan Moore6/4F£42,533
5 May 16US Army Ranger (IRE)MBNA Chester Vase (Colts & Geldings)Group 31m4½fRyan Moore4/11F£42,533

Related links

CourseProfileAndrew BaldingRichard FaheyTom DascombeHugo PalmerTim EasterbyRalph BeckettIan WilliamsWilliam HaggasRichard HannonDavid EvansRoger VarianJennie Candlish

Data as of 14 October 2026

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