The Diomed Stakes is a Group 3 flat horse race in Great Britain open to horses aged three years or older. It is run at Epsom Downs over a distance of 1 mile and 113 yards (1,713 metres), and it is scheduled to take place each year in late May or early June.
The event is named after Diomed, the inaugural winner of Epsom's most famous race, the Epsom Derby. It was established in 1971, although it could be regarded as a continuation of a previous event, the St James Stakes.
The Diomed Stakes is now held on the first day of Epsom's two-day Derby Festival meeting, the same day as the Epsom Oaks.
Records Most successful horse (2 wins): All Friends – 1975, 1976 Nayyir – 2002, 2006 Blythe Knight – 2007, 2008 Century Deam - 2018, 2020
Leading jockey (4 wins): Lester Piggott – Sparkler (1971), Averof (1974), Hardgreen (1980), Adonijah (1984)
Leading trainer (3 wins): Clive Brittain – Averof (1974), Sylva Honda (1991), Mr Martini (1995) Sir Henry Cecil – Ovac (1978), Adonijah (1984), Shining Steel (1989) Andrew Balding - Passing Glance (2004), Side Glance (2012), Tullius (2016) Sir Michael Stoute - Scottish Reel (1985), Zaaki (2019), Regal Reality (2023)
Winners Year Winner Age Jockey Trainer Time 1971 Sparkler 3 Lester Piggott Sam Armstrong 1:45.76 1972 Sallust 3 Joe Mercer Dick Hern 1:42.25 1973 Owen Dudley 3 Geoff Lewis Noel Murless 1:44.25 1974 Averof 3 Lester Piggott Clive Brittain 1:41.48 1975 All Friends 3 Paul Cook Nick Vigors 1:44.50 1976 All Friends 4 Paul Cook Nick Vigors 1:41.89 1977 Gunner B 4 Joe Mercer Geoff Toft 1:44.52 1978 Ovac 5 Joe Mercer Henry Cecil 1:43.49 1979 Spring in Deepsea 4 Greville Starkey Luca Cumani 1:44.40 1980 Hardgreen 4 Lester Piggott Michael Stoute 1:41.31 1981 Saher 5 Ray Cochrane Ron Sheather 1:48.24 1982 Prima Voce 3 Bruce Raymond Robert Armstrong 1:43.32 1983 Lofty 3 Paul Cook Harry Thomson Jones 1:49.09 1984 Adonijah 4 Lester Piggott Henry Cecil 1:43.94 1985 Scottish Reel 3 Walter Swinburn Michael Stoute 1:47.97 1986 Pennine Walk 4 Pat Eddery Jeremy Tree 1:43.28 1987 Lauries Warrior 3 Michael Roberts Ron Boss 1:41.00 1988 Waajib 5 Michael Roberts Alec Stewart 1:42.38 1989 Shining Steel 3 Steve Cauthen Henry Cecil 1:42.99 1990 Eton Lad 3 Cash Asmussen Neville Callaghan 1:43.37 1991 Sylva Honda 3 Alan Munro Clive Brittain 1:40.75 1992 Zaahi 3 Richard Hills Harry Thomson Jones 1:43.50 1993 Enharmonic 6 Frankie Dettori Lord Huntingdon 1:44.04 1994 Bluegrass Prince 3 Brent Thomson Richard Hannon Sr. 1:41.51 1995 Mr Martini 5 Michael Roberts Clive Brittain 1:42.51 1996 Blomberg 4 David Harrison James Fanshawe 1:43.59 1997 Polar Prince 4 Ray Cochrane Michael Jarvis 1:42.26 1998 Intikhab 4 Frankie Dettori Saeed bin Suroor 1:41.42 1999 Lear Spear 4 Richard Quinn David Elsworth 1:43.73 2000 Trans Island 5 Kieren Fallon Ian Balding 1:44.15 2001 Pulau Tioman 5 Philip Robinson Michael Jarvis 1:42.70 2002 Nayyir 4 Eddie Ahern Gerard Butler 1:45.78 2003 Gateman 6 Keith Dalgleish Mark Johnston 1:41.37 2004 Passing Glance 5 Martin Dwyer Andrew Balding 1:42.40 2005 Hazyview 4 Darryll Holland Neville Callaghan 1:44.73 2006 Nayyir 8 Frankie Dettori Gerard Butler 1:43.48 2007 Blythe Knight 7 Graham Gibbons John Quinn 1:43.36 2008 Blythe Knight 8 Graham Gibbons John Quinn 1:45.50 2009 Mac Love 8 Micky Fenton Stef Liddiard 1:43.61 2010 Bushman 6 William Buick David Simcock 1:43.03 2011 Fanunalter 5 Adam Kirby Marco Botti 1:45.12 2012 Side Glance 5 Jimmy Fortune Andrew Balding 1:43.37 2013 Gregorian 4 William Buick John Gosden 1:48.68 2014 French Navy 6 Adam Kirby Charlie Appleby 1:41.71 2015 Arod 4 Andrea Atzeni Peter Chapple-Hyam 1:43.09 2016 Tullius 8 Jimmy Fortune Andrew Balding 1:47.90 2017 Sovereign Debt 8 James Sullivan Ruth Carr 1:42.61 2018 Century Dream 4 William Buick Simon Crisford 1:43.57 2019 Zaaki 4 Ryan Moore Sir Michael Stoute 1:40.46 2020 Century Dream 6 James Doyle Simon & Ed Crisford 1:37.25 2021 Oh This Is Us 8 Tom Marquand Richard Hannon Jr. 1:47.31 2022 Megallan 4 Frankie Dettori John and Thady Gosden 1:43.41 2023 Regal Reality 8 Ryan Moore Sir Michael Stoute 1:43.56 2024 Royal Scotsman 4 Jamie Spencer Paul & Oliver Cole 1:45.31 2025 Persica 4 Ryan Moore Richard Hannon Jr. 1:44.57 2026 Seagulls Eleven 4 Oisin Murphy Hugo Palmer 1:46.74
See also Horse racing in Great Britain List of British flat horse races
References Paris-Turf: , , , , ,
Racing Post: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
galopp-sieger.de – Diomed Stakes (ex St. James Stakes). ifhaonline.org – International Federation of Horseracing Authorities – Diomed Stakes (2019). pedigreequery.com – Diomed Stakes – Epsom.