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Horse profile

Belle Du Jour (FR)

5yo mare (at last run, May 2017) · Last trainer H Billot · Last owner Jean Pierre Vanden Heede
by Dyhim Diamond (IRE) out of Decatur (GB) (Deploy)
16 runs · 4 courses · from Apr 2014
As at 4 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 10 May 2017 — 3,464 days ago. Our archive can't say whether the horse is still in training.
Last run May 2017 · 16th of 18 2 wins · Maisons-Laffitte (FR)
KTB Profile

Belle Du Jour (FR) is 2 from 16. Hasn't won since May 2014.

Based on 16 archived runs · updated 4 Nov 2026

KTB Speed and Rating

KTB Speed

No KTB Speed figures for this horse. The engine scores GB and Irish racing from Oct 2016; runs elsewhere, or earlier, have no figure.

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 0 figures from 0 runs · a record, not a forecast

KTB Rating

No KTB Rating figures for this horse. The engine scores GB and Irish racing; runs elsewhere, or earlier, have no figure.

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 0 figures from 0 runs · a record, not a forecast

Both figures are KTB's own, computed from the archive; no vendor rating enters either. Every run's figure is on its form line below with its grade. Grades measure how much the archive could see, never the merit of the run.

Run style is derived from in-running commentary, which our data provider does not supply for this horse's races.

Pedigree intelligence

Sire
Dyhim Diamond (IRE)

Progeny in our archive have won 10.2% of 372 runs since Jan 2008 (48 horses).

Weakest on standard (aw) going: 7% from 115.

GoingRunsWinsSRvs sireThis horse
Firm100%−10.2—
Good to Firm6116.7%+6.5—
Good911516.5%+6.31 from 7
Good to Soft6046.7%−3.50 from 3
Soft7368.2%−21 from 5
Heavy26415.4%+5.2—
Standard (AW)11587%−3.20 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f2328.7%−1.51 from 5
6f – 7f1091211%+0.81 from 9
1m – 1m1f991111.1%+0.90 from 1
1m2f – 1m4f9488.5%−1.70 from 1
1m5f – 2m28310.7%+0.5—
2m1f – 2m4f18211.1%+0.9—
2m5f – 3m100%−10.2—

Flat and jumps together (all codes) · since Jan 2008 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Decatur (GB) (Deploy)

7 siblings in the archive, 4 winners — best of them Emlach Star (IRE) (2 wins).

The wins came over 7f–1m4f; the highest grade won is Class 5 (Gramada (IRE)).

ProduceRunsWinsWin tripsBest grade
Emlach Star (IRE)1421m4f—
Gramada (IRE)1621m2f–1m4fClass 5
Scuzme (IRE)4011m½fClass 5
Civeles (FR)917f—
Cloudesley (IRE)130——
Spirit Of Dixie (GB)160——
Henry Bond (GB)50——

Record by conditions

GoingRunsWinsSR£1
Good 7 1 14% −1.40
Soft 5 1 20% −2.20
Good to Soft 3 0 0% −3.00
Standard (AW) 1 0 0% −1.00

CourseRunsWinsSR£1
Chantilly (FR) 6 0 0% −6.00
Maisons-Laffitte (FR) 6 2 33% +2.40
Deauville (FR) 3 0 0% −3.00
Longchamp (FR) 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 9 1 11% −6.20
Under 6f 5 1 20% +0.60
1m2f – 1m4f 1 0 0% −1.00
1m – 1m1f 1 0 0% −1.00

JockeyRunsWinsSR£1
Korentin Naimi 3 1 33% −0.20
Antoine Hamelin 3 1 33% +2.60
Christophe-Patrice Lemaire 2 0 0% −2.00
Sebastien Maillot 1 0 0% −1.00
Mme Alison Massin 1 0 0% −1.00
Jerome Claudic 1 0 0% −1.00
Tony Piccone 1 0 0% −1.00
Eddy Hardouin 1 0 0% −1.00
Roberto-Carlos Montenegro 1 0 0% −1.00
Valentin Gambart 1 0 0% −1.00
Cristian Demuro 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 9 2 22% −0.60
Cheekpieces 4 0 0% −4.00
Blinkers 3 0 0% −3.00

SeasonRunsWinsSR£1
2017 2 0 0% −2.00
2015 4 0 0% −4.00
2014 10 2 20% −1.60

Splits include every sample, however small — muted rows are under 3 runs. A one-from-one record is a fact, not a trend: read the Runs column before the strike rate.

Form

DateCourseRace PosBtn Wgt Jockey SP
2017 · 2 runs
10 May 17+70d Chantilly (FR) Prix de Villacoublay (Handicap) (4yo+) (Turf) 5½f · Good To Soft · 18 ran 16/18 ¾ 8-6 Sebastien Maillot 60/1
01 Mar 17+613d Deauville (FR) Prix de Branville (Claimer) (5yo+) (Polytrack) 1m4½f · Standard · 6 ran 5/6 6½ 7-12 Mme Alison Massin 29/1
2015 · 4 runs
27 Jun 15+47d Deauville (FR) Prix d'Auteuil (Handicap) (3yo Fillies) (Round) (Turf) 7f · Good · 17 ran 7/17 ¾ 8-5 Jerome Claudic 37/1
11 May 15+9d Maisons-Laffitte (FR) Prix du Vesinet (Claimer) (3yo) (Turf) 6f · Good · 18 ran 7/18 ½ 8-11 Tony Piccone 247/10
02 May 15+17d Chantilly (FR) Prix de Gouvieux (Handicap) (3yo) (Turf) 6f · Very Soft · 14 ran 11/14 2½ 8-0 Eddy Hardouin 43/1
15 Apr 15+176d Chantilly (FR) Prix du Sagittaire (Handicap) (3yo) (Turf) 6f · Good To Soft · 19 ran 16/19 hd 8-2 Roberto-Carlos Montenegro 27/1
2014 · 10 runs
21 Oct 14+26d Deauville (FR) Prix de la Banche (Claimer) (2yo) (Turf) 6f · Very Soft · 13 ran 8/13 nk 8-9 Valentin Gambart 28/1
25 Sep 14+77d Maisons-Laffitte (FR) Prix de Bures sur Yvette (Claimer) (2yo Fillies) (Round) (Turf) 1m · Good To Soft · 11 ran 10/11 20 9-4 Cristian Demuro 99/10
10 Jul 14+20d Maisons-Laffitte (FR) Prix de Saint-Germain-en-Laye (Claimer) (2yo Fillies) (Round) (Turf) 7f · Very Soft · 9 ran 5/9 1 9-0 Korentin Naimi 51/10
20 Jun 14+13d Chantilly (FR) Prix du Viaduc de Commelles (Claimer) (French-bred 2yo) (Turf) 6f · Good · 5 ran 4/5 nk 9-2 Korentin Naimi 11/5
07 Jun 14+8d Chantilly (FR) Prix du Bois Bourdon (Prix Groupe CPN) (Claimer) (2yo) (Turf) 6f · Good · 9 ran 5/9 2 8-11 Christophe-Patrice Lemaire 5/2F
30 May 14+10d Maisons-Laffitte (FR) Prix de Vaureal (Claimer) (French-bred 2yo) (Turf) 6f · Very Soft · 8 ran 1/8 9-2 Korentin Naimi 9/5F
20 May 14+24d Longchamp (FR) Prix de Saint-Germain (Claimer) (2yo) (Turf) 5f · Good · 6 ran 2/6 3 8-11 Christophe-Patrice Lemaire 27/10
26 Apr 14+12d Chantilly (FR) Prix du Cedre (Claimer) (2yo) (Turf) 5f · Soft · 11 ran 3/11 ¾ 8-11 Antoine Hamelin 7/2
14 Apr 14+11d Maisons-Laffitte (FR) Prix de Chanteloup (Claimer) (2yo French-breds) (Turf) 5f · Good · 9 ran 2/9 1½ 9-5 Antoine Hamelin 21/10F
03 Apr 14 Maisons-Laffitte (FR) Prix d'Orgeval (Claimer) (2yo) (Turf) 5f · Good · 12 ran 1/12 9-1 Antoine Hamelin 23/5

Quick answers

How many races has Belle Du Jour won?
Belle Du Jour (FR) won 2 of 16 archived starts between 2014 and 2017, a strike rate of 12.5%. Placed 5 times in total (31.3% of starts).
Who trained Belle Du Jour?
Belle Du Jour (FR) was trained by H Billot on the most recent run on record, at Chantilly (FR) on 10 May 2017.
Who is Belle Du Jour's sire?
Belle Du Jour (FR) is by Dyhim Diamond (IRE) out of Decatur (GB), whose sire is Deploy.
What going does Belle Du Jour prefer?
Belle Du Jour (FR) has the best record on soft going: 1 win from 5 starts (20%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Belle Du Jour's sire's record?
Dyhim Diamond (IRE)'s progeny in our archive have won 10.2% of 372 runs since Jan 2008 (48 horses), Flat and jumps together. Weakest on standard (aw) going: 7% from 115.
Who are Belle Du Jour's siblings?
Out of Decatur (GB), Belle Du Jour (FR) has 7 other produce in our archive, 4 of them winners. Most wins: Emlach Star (IRE) (2). Highest grade won: Class 5 (Gramada (IRE)). The wins came over 7f–1m4f. As at Nov 2026.

Record shown from April 2014. Our archive holds racing in Great Britain, Ireland and France from January 2005. Any runs before that, or in other countries, are not in it. In-running comments are available from 2024 onward.