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Horse profile

Diamond Boy (FR)

5yo horse (at last run, Aug 2011) · Last trainer F Doumen · Last owner Mme Bernard Destremau
by Mansonnien (FR) out of Gold Or Silver (FR) (Glint Of Gold)
13 runs · 7 courses · from Mar 2009
As at 13 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 2 Aug 2011 — 5,551 days ago. Our archive can't say whether the horse is still in training.
Last run Aug 2011 · 2nd of 6 5 wins · Saint-Cloud (FR), Maisons-Laffitte (FR) & Longchamp (FR)
KTB Profile

Diamond Boy (FR) is 5 from 13, including a Listed win. The biggest win we hold: the Prix Scaramouche at Saint-Cloud (FR) (Oct 2010). Hasn't won since Oct 2010. 3 of 4 starts at Saint-Cloud (FR) have ended in wins.

Based on 13 archived runs · updated 13 Oct 2026

Progeny in our archive

Progeny record

As a sire, Diamond Boy (FR)’s progeny in our archive have won 12% of 2,265 runs since Jan 2008 (284 horses).

GoingRunsWinsSRvs sire
Good to Firm26830.8%+18.8
Good6608012.1%+0.1
Good to Soft4765411.3%−0.7
Soft7397910.7%−1.3
Heavy3475014.4%+2.4
Standard (AW)1715.9%−6.1
Distance (all codes)RunsWinsSRvs sire
6f – 7f700%−12
1m – 1m1f1600%−12
1m2f – 1m4f18211.1%−0.9
1m5f – 2m84111213.3%+1.3
2m1f – 2m4f97410510.8%−1.2
2m5f – 3m3544512.7%+0.7
Over 3m55814.5%+2.5

Flat and jumps together (all codes) · since Jan 2008 · as at 13 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

KTB Speed and Rating

KTB Speed

No KTB Speed figures for this horse. The engine scores GB and Irish racing from Sep 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
Mansonnien (FR)

Progeny in our archive have won 14.1% of 765 runs since Jan 2008 (80 horses).

Strongest on heavy going: 20.8% from 168. Weakest over 2m5f – 3m (all codes): 10.4% from 212.

GoingRunsWinsSRvs sireThis horse
Good to Firm33515.2%+1.1—
Good1842212%−2.11 from 4
Good to Soft9266.5%−7.62 from 4
Soft2723814%−0.11 from 4
Heavy1683520.8%+6.71 from 1
Standard (AW)1516.7%−7.4—
Distance (all codes)RunsWinsSRvs sireThis horse
1m2f – 1m4f2627.7%−6.42 from 7
1m5f – 2m1071715.9%+1.83 from 6
2m1f – 2m4f3665916.1%+2—
2m5f – 3m2122210.4%−3.7—
Over 3m54814.8%+0.7—

Flat and jumps together (all codes) · since Jan 2008 · as at 13 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Gold Or Silver (FR) (Glint Of Gold)

7 siblings in the archive, 3 winners — best of them Golden Silver (FR) (12 wins).

The wins came over 1m4f–2m6½f; the highest grade won is Grade 1 (Golden Silver (FR)).

ProduceRunsWinsWin tripsBest grade
Golden Silver (FR)33122m–2m2fGrade 1
Golden Birthday (FR)29101m4f–2m6½fClass 2
Argent Ou Or (FR)812m1½fClass 6
Argent Et Or (FR)90——
Or Ou Argent (FR)10——
Silver Or Gold (FR)20——
Blue Silver (FR)50——

Record by conditions

GoingRunsWinsSR£1
Good 4 1 25% −1.10
Good to Soft 4 2 50% +10.20
Soft 4 1 25% −1.00
Heavy 1 1 100% +8.60

CourseRunsWinsSR£1
Saint-Cloud (FR) 4 3 75% +16.00
Longchamp (FR) 3 1 33% −1.00
Deauville (FR) 2 0 0% −2.00
Chantilly (FR) 1 0 0% −1.00
Lyon Parilly (FR) 1 0 0% −1.00
Maisons-Laffitte (FR) 1 1 100% +5.70
Fontainebleau (FR) 1 0 0% —

DistanceRunsWinsSR£1
1m2f – 1m4f 7 2 29% +4.50
1m5f – 2m 6 3 50% +12.20

JockeyRunsWinsSR£1
Thierry Thulliez 9 5 56% +19.70
Christophe Soumillon 1 0 0% −1.00
Gerald Mosse 1 0 0% −1.00
Franck Blondel 1 0 0% −1.00
Jean-Bernard Eyquem 1 0 0% —

SeasonRunsWinsSR£1
2011 3 0 0% −3.00
2010 7 4 57% +19.70
2009 3 1 33% —

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
02 Aug 11+19d Deauville (FR) Prix De Reux () (3yo+) (Turf) 12.5f · Good · 6 ran 2/6 1 9-5 Christophe Soumillon 17/2
14 Jul 11+29d Longchamp (FR) Prix Maurice De Nieuil (4yo+) (Turf) 14f · Good To Soft · 12 ran 9/12 shd 8-11 Gerald Mosse 16/1
15 Jun 11+251d Chantilly (FR) Prix La Moskowa () (4yo+) (Turf) 15f · Good To Soft · 8 ran 3/8 ¾ 9-1 Thierry Thulliez 11/1
07 Oct 10+69d Saint-Cloud (FR) Prix Scaramouche () (3yo+) (Turf) 14f · Heavy · 8 ran 1/8 9-2 Thierry Thulliez 43/5
30 Jul 10+40d Deauville (FR) Prix Du Carrousel (4yo+) (Turf) 15f · Good · 11 ran 9/11 nk 8-11 Franck Blondel 17/2
20 Jun 10+27d Lyon Parilly (FR) Grand Prix de Lyon Merial (4Eme Etap du Defi Galop) () 12f · Soft · 8 ran 4/8 1 8-11 Thierry Thulliez 2/1F
24 May 10+20d Saint-Cloud (FR) Prix Marsyas (Conditions) (4yo+) (Turf) 15.5f · Good · 7 ran 1/7 8-13 Thierry Thulliez 9/10F
04 May 10+21d Maisons-Laffitte (FR) Prix Des Ecuries Du Chateau (Handicap) (4yo) (Turf) 13f · Good To Soft · 14 ran 1/14 9-6 Thierry Thulliez 57/10F
13 Apr 10+24d Saint-Cloud (FR) Prix De Provence (Handicap) (4yo) (Turf) 12f · Good To Soft · 18 ran 1/18 8-11 Thierry Thulliez 13/2
20 Mar 10+146d Saint-Cloud (FR) Handicap de Saint-Cloud (Handicap) 12f · Very Soft · 3 ran 3/3 ½ 9-0 Thierry Thulliez —
25 Oct 09+21d Longchamp (FR) Handicap d'Octobre (Handicap) 12f · Soft · 3 ran 1/3 9-4 Thierry Thulliez —
04 Oct 09+188d Longchamp (FR) Prix Barzan (Handicap) 12f · Good · 16 ran 5/16 ¾ 9-5 Jean-Bernard Eyquem —
30 Mar 09 Fontainebleau (FR) Prix des Barnolets 10f · Very Soft · 11 ran 6/11 3 8-9 Thierry Thulliez —

Quick answers

How many races has Diamond Boy (FR) won?
Diamond Boy (FR) won 5 of 13 archived starts between 2009 and 2011, a strike rate of 38.5%. Placed 7 times in total (53.8% of starts).
Who trained Diamond Boy (FR)?
Diamond Boy (FR) was trained by F Doumen on the most recent run on record, at Deauville (FR) on 2 August 2011.
Who is Diamond Boy (FR)'s sire?
Diamond Boy (FR) is by Mansonnien (FR) out of Gold Or Silver (FR), whose sire is Glint Of Gold.
What going does Diamond Boy (FR) prefer?
Diamond Boy (FR) has the best record on good to soft going: 2 wins from 4 starts (50%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Diamond Boy (FR)'s sire's record?
Mansonnien (FR)'s progeny in our archive have won 14.1% of 765 runs since Jan 2008 (80 horses), Flat and jumps together. Strongest on heavy going: 20.8% from 168. Weakest over 2m5f – 3m (all codes): 10.4% from 212.
Who are Diamond Boy (FR)'s siblings?
Out of Gold Or Silver (FR), Diamond Boy (FR) has 7 other produce in our archive, 3 of them winners. Most wins: Golden Silver (FR) (12). Highest grade won: Grade 1 (Golden Silver (FR)). The wins came over 1m4f–2m6½f. As at Oct 2026.
Has Diamond Boy (FR) sired winners?
As a sire, Diamond Boy (FR)'s progeny in our archive have won 12% of 2,265 runs since Jan 2008 (284 horses), Flat and jumps together.

Record shown from March 2009. Our archive holds racing in Great Britain, Ireland and France from January 2005. Runs in other countries are not in it, and earlier runs are not available from our data provider. In-running comments are available from 2024 onward.