Horse Racing stats man, Andy has contributed to OLBG for 18 years - An Ipswich fan and F1 fanatic, he also contributes EFL football and Motor Sport opinion.
2026 Prix de Diane Preview
Scheduled to take place in June of each year at the Chantilly racecourse is the Prix de Diane, which is known as the French Oaks.
The race, just like the Epsom Oaks, is restricted to three-year-old fillies and is run over a distance of one mile, two and a half furlongs (2,100m).
The race was established in 1843 and currently holds a Group 1 status. It was originally restricted to only French-born and bred horses; however, it is now open to all, and numerous European raiders have come and won the race.
Prix de Diane Information:
Our dedicated Chantilly tips page will not only bring you predictions from the OLBG racing tipsters for the upcoming card that includes the Prix de Diane, but will also have predictions for each meeting at Chantilly throughout the season, so be sure to head over there. You may also be interested in other preview blogs that we have packed full of information. Head down to the Other Principal Races in France section for links to these.
Best Horse Racing Betting Sites 2025
How competitive is the Prix de Diane market? When looking at the over-rounds for the last 20 renewals, the most competitive market was in 2010 when the race had an over-round of 117%. The race in 2006 was a race that was most in the bookie's favour with an over-round of 129%, whilst on average over the last 20 renewals of the Prix de Diane, the over-round has been 121%, which means the bookie expects to pay out £100 for every £121 which is bet.
Below you will find the 2026 Prix de Diane Trends. See which patterns have occurred over the recent renewals that you may be able to use for the next renewal. We also have a section that looks at the Prix de Diane Trend Analysis.
These are the top three quickest-run Prix de Diane races over the last 20 renewals:
- Treve (2:03.77) in 2013
- Blue Rose Cen (2:05.09) in 2023
- Avenir Certain (2:05.37) in 2014
Looking at the future form, is the winner worth following next time out? Over the past 20 renewals, if you had followed the winner of the Prix de Diane next time out, then you would have backed a total of 7 winners. Backing all 18 runners who have been out since their win at SP next time out would have returned an LSP of -3.80. Remember to use the racing predictions along with the information on this page to find a bet on the 2026 Prix de Diane.
When looking over the past 20 renewals, a time of 2:03.77 was set by Treve in 2013, which is the quickest time over that period. The runner was trained by Mme Christiane Head and ridden by Thierry Jarnet. The slowest winning time was set in 2012 when Valyra won in a time of 2:10.11, booked to ride was Johnny Murtagh by trainer J-C Rouget.
Prix de Diane Past Winners
Here are the Prix de Diane past winners for the last 10 renewals. Each row details the year of the race, the horse which won, along with the age & weight of the horse. Also detailed is the stall where the horse came from and the total number of runners in the race. The horse's trainer and the jockey at the time of winning the Prix de Diane are also displayed, along with the starting price at which the horse was sent off.
| Year | Horse (Drawn) | Info |
|---|---|---|
| 2025 2:06.57 | Gezora (FR) 3yo 9-0 (1 of 12) 11/2 | Christophe Soumillon F-H Graffard (FR) |
| 2024 2:07.64 | Sparkling Plenty (FR) 3yo 9-0 (11 of 14) 147/10 | Tony Piccone P Cottier (FR) |
| 2023 2:05.09 | Blue Rose Cen (IRE) 3yo 9-1 (1 of 15) 16/5F | Aurelien Lemaitre Christopher Head (FR) |
| 2022 2:06.63 | Nashwa (GB) 3yo 9-0 (2 of 17) 3/1F | Hollie Doyle John & Thady Gosden (GB) |
| 2021 2:09.05 | Joan Of Arc (IRE) 3yo 9-0 (5 of 17) 53/10 | Ioritz Mendizabal A P O'Brien (IRE) |
| 2020 2:05.46 | Fancy Blue (IRE) 3yo 9-0 (7 of 11) 81/10 | Pierre-Charles Boudot Donnacha Aidan O'Brien (IRE) |
| 2019 2:08.70 | Channel (IRE) 3yo 9-0 (7 of 16) 91/10 | Pierre-Charles Boudot F-H Graffard (FR) |
| 2018 2:06.11 | Laurens (FR) 3yo 9-0 (12 of 13) 76/10 | P J McDonald K R Burke (GB) |
| 2017 2:05.97 | Senga (USA) 3yo 9-1 (8 of 16) 218/10 | Stephane Pasquier P Bary (FR) |
| 2016 2:09.45 | La Cressonniere (FR) 3yo 9-0 (9 of 16) 11/4F | Cristian Demuro J-C Rouget (FR) |
Where have the winning runners come from?
Here are the countries where the winning trainers of the Prix de Diane have been based:
- FR: 14 winners with an additional 34 placings from 225 runners
- GB: 4 winners with an additional 1 placing from 18 runners
- IRE: 2 winners with an additional 5 placings from 18 runners
- GER: 0 winners with an additional 0 placings from 7 runners
- SPA: 0 winners with an additional 0 placings from 1 runner
- QA: 0 winners with an additional 0 placings from 1 runner
- ITY: 0 winners with an additional 0 placings from 1 runner
- HK: 0 winners with an additional 0 placings from 1 runner
2025 Prix de Diane Replay
Prix de Diane Trainer Statistics
The leading trainer in the Prix de Diane over the last 20 renewals is J-C Rouget, who has won the race four times, with those four winners coming from Stacelita (2009), Valyra (2012), Avenir Certain (2014) and La Cressonniere (2016). Other trainers who have recorded multiple wins in the Prix de Diane are A De Royer-Dupre (2 wins) and F-H Graffard (2 wins). Two trainers have not had the best of times over the last 20 renewals in the Prix de Diane. C Laffon-Parias has sent a total of 12 runners to the race without recording any wins, whilst F Chappet has sent out 10 without a winner.
Here are some of the top Prix de Diane trainer statistics over the last 20 renewals (R = Runners, W = Winners, P = Places including winners, Win LSP is based on 1pt Win and EW LSP is based on 0.5pt Win & 0.5pt Place):
| Trainer | R-W-P | Win | EW |
|---|---|---|---|
| J-C Rouget | 27-4-7 | +10.35 | -1.16 |
| A De Royer-Dupre | 20-2-4 | -16.42 | -13.15 |
| F-H Graffard | 12-2-6 | +4.60 | +6.85 |
| A Fabre | 29-1-6 | -26.00 | -18.95 |
| A P O'Brien | 14-1-5 | -7.70 | -5.96 |
| P Bary | 5-1-1 | +17.80 | +6.90 |
| John Gosden | 4-1-1 | +13.00 | +5.00 |
| Christopher Head | 4-1-1 | +0.20 | -1.08 |
| Mme Christiane Head | 3-1-1 | +9.00 | +4.60 |
| John & Thady Gosden | 3-1-1 | +1.00 | -0.50 |
Prix de Diane Jockey Statistics
There are multiple leading jockeys in the Prix de Diane over the last 20 renewals, with Christophe Soumillon, Christophe-Patrice Lemaire, Pierre-Charles Boudot, and Frankie Dettori having all won the race two times. Christophe Soumillon winners have been with Zarkava (2008) and Gezora (2025). Christophe-Patrice Lemaire winners have been with Stacelita (2009) and Sarafina (2010). Pierre-Charles Boudot winners have been with Channel (2019) and Fancy Blue (2020). Frankie Dettori winners have been with West Wind (2007) and Star Of Seville (2015). Multiple jockeys have not had the best of times over the last 20 renewals in the Prix de Diane; Olivier Peslier (0-16), Mickael Barzalona (0-14) and Gerald Mosse (0-10) have all failed to produce a single winner despite sending multiple rides to the race.
Here are some of the top Prix de Diane jockey statistics over the last 20 renewals (R = Runners, W = Winners, P = Places including winners, Win LSP is based on 1pt Win and EW LSP is based on 0.5pt Win & 0.5pt Place):
| Jockey | R-W-P | Win | EW |
|---|---|---|---|
| Christophe Soumillon | 19-2-5 | -11.17 | -11.92 |
| Christophe-Patrice Lemaire | 10-2-2 | -5.65 | -6.59 |
| Pierre-Charles Boudot | 8-2-5 | +11.20 | +9.41 |
| Frankie Dettori | 7-2-2 | +15.50 | +5.70 |
| Stephane Pasquier | 16-1-3 | +6.80 | -0.29 |
| Maxime Guyon | 14-1-4 | -11.00 | -10.30 |
| Ioritz Mendizabal | 10-1-3 | -3.70 | -4.75 |
| Cristian Demuro | 9-1-2 | -5.25 | -6.12 |
| Gregory Benoist | 8-1-1 | -2.50 | -4.30 |
| Thierry Jarnet | 6-1-2 | +6.00 | +5.40 |
2026 Prix de Diane Trends
Favourites finishing positions (oldest to latest): 2, (8, 14), 1, 1, 1, 2, 2, 8, 4, 11, 1, 4, 7, 6, 2, 2, 1, 1, 4, 4
The percentage shown is the percentage of the total number of runners who fell under that factor. High percentages are less appealing than lower ones, as you would expect them to do well. The trend information is based on the available information on the Racing Oost in terms of previous runs, etc.
- 20 / 20 (60%) - Within the first 8 of the market
- 20 / 20 (61%) - Not in a G3/LST/Cl3-4 (LTO)
- 20 / 20 (64%) - Highest Run is not G3/LST/Cl3
- 20 / 20 (66%) - No bigger than 25/1
- 20 / 20 (66%) - Achieved an RPR of 94+ (Last Win)
- 20 / 20 (78%) - Off a break of 9 - 35 days
- 20 / 20 (79%) - Break of 14 - 63 days (Last Place)
- 20 / 20 (79%) - No bigger than 14/1 (Last Win)
- 20 / 20 (81%) - Highest Placed is not LST/Cl3-4
- 20 / 20 (83%) - Highest Won is not Cl3-5
- 20 / 20 (84%) - No bigger than 14/1 (Career Win)
- 20 / 20 (85%) - Not on HY/GF/STD-SLW (Debut)
- 20 / 20 (85%) - No bigger than 18/1 (Career Place)
- 20 / 20 (88%) - No bigger than 26/1 (Career)
- 20 / 20 (89%) - Not on GF/STD-SLW/STD (Last Win)
Remember to use the trends listed above, along with the Chantilly racing predictions, to see if you can find the winner of the Prix de Diane. Did you know that we have an OLBG Betting School section on OLBG? It is a place to help you improve your betting experience with articles covering numerous topics.
Are you already a member? If not, then why not? With over £6,000 given away each month in the tipster competition, why not get involved? Remember, it is completely FREE! So, head over to the registration page to sign up today! If you are already a member, then share your thoughts on the Prix de Diane by adding a tip on the race here.
101 Ways to find Winners in Horse Racing
Prix de Diane Trend Analysis
✅ The trend factor, which has produced 10+ winners and shows the best LSP, an LSP of +35.13, is when runners had 2 season wins.
❌ The worst performing factor that has failed to produce a single winner is when runners had a highest class run of Class 1 (G3), when backing these, the trend shows a record of 0-65.
Here are the most recent winning draws, along with the further placings in brackets:
- 2025: Winner in 1 (12,11) [12 Runners]
- 2024: Winner in 11 (8,4) [14 Runners]
- 2023: Winner in 1 (3,10) [15 Runners]
- 2022: Winner in 2 (6,17) [17 Runners]
- 2021: Winner in 5 (8,14) [17 Runners]
The course which has produced the most winners of the Prix de Diane is Longchamp; there have been a total of 8 winners of this race who ran at Longchamp last time out. The next best course, which has produced the second most winners, is Chantilly; there have been a total of 5 winners of this race who ran at Chantilly last time out.
Looking over the past renewals, these are the stallions whose offspring have produced multiple winners of the Prix de Diane:
- Galileo (2 Wins)
- Le Havre (2 Wins)
These are the stallions whose offspring have not produced a winner of the Prix de Diane despite multiple attempts:
- Dubawi (0 Wins from 8 runners)
- Lope De Vega (0 Wins from 8 runners)
- Sea The Stars (0 Wins from 8 runners)
- Anabaa (0 Wins from 6 runners)
- Dansili (0 Wins from 6 runners)
Looking at the winning odds over the last 20 renewals, the biggest-priced winner was Valyra in 2012, winning for J-C Rouget at odds of 25/1 under the guidance of Johnny Murtagh. Looking at the runners at the head of the market over the last 20 renewals, there have been 6 winning favourites in the race. Remember to bookmark the best racing tipsters page so you can get easy access to the best OLBG racing tipsters. All figures and trends above, such as the horse's previous runs, are based on the information that is available on the Racing Post.
Route to the Prix de Diane
Many trainers will target races to use as prep races before coming to the Prix de Diane; these are the races which the recent winners ran in before coming here:
| Info | Last Race |
|---|---|
| 2025 - Gezora Longchamp - 1st of 4 (6/1) | Auguste Rodin Coolmore Prix Saint-Alary |
| 2024 - Sparkling Plenty Chantilly - 1st of 6 (31/10) | Prix de Sandringham |
| 2023 - Blue Rose Cen Longchamp - 1st of 10 (8/5) | Poule dEssai des Pouliches |
| 2022 - Nashwa Epsom - 3rd of 11 (4/1) | Epsom Oaks |
| 2021 - Joan Of Arc Curragh - 2nd of 14 (9/2) | Irish 1000 Guineas |
| 2020 - Fancy Blue Curragh - 2nd of 11 (12/1) | Irish 1000 Guineas |
| 2019 - Channel Chantilly - 1st of 8 (63/10) | Prix de la Chapelle-En-Serval |
| 2018 - Laurens Longchamp - 1st of 5 (17/10) | The Gurkha Coolmore Prix Saint-Alary |
| 2017 - Senga Chantilly - 3rd of 5 (9/4) | Prix de Sandringham |
| 2016 - La Cressonniere Deauville - 1st of 14 (15/2) | Poule dEssai des Pouliches |
Article Contributor Information
We are blessed with an excellent team of specialists and experts at OLBG. Contributing to creating and maintaining this Prix de Diane Preview are at hand, Andy and James. They both work on the Horse racing tips team team looking after the tipsters and managing the tips settlement, whilst also creating and managing all of the horse racing event previews for International racing.
James Banting
Tipster Competition Assistant
Andy Powell
Content Editor
Other Principal Races in France
Here are some other notable races throughout France which take place during the racing season that we also have blogs for.
Races at Auteuil Racecourse
Races at Chantilly Racecourse
Races at Deauville Racecourse
Races at Longchamp Racecourse
- Grand Prix de Paris
- Poule d'Essai des Poulains
- Poule d'Essai des Pouliches
- Prix de la Foret
- Prix de l'Abbaye de Longchamp
- Prix de l'Arc de Triomphe
- Prix de l'Opera
- Prix du Moulin de Longchamp
- Prix Ganay
- Prix Jean-Luc Lagardere
- Prix Marcel Boussac
- Prix Royal-Oak
- Prix Vermeille
