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Horse profile

Diamond Brooch (IRE)

2yo filly (at last run, Oct 2010) · Last trainer A P O'Brien · Last owner Derrick Smith
by Danehill Dancer (IRE) out of Surval (IRE) (Sadler's Wells)
3 runs · 2 courses · from Sep 2010
As at 4 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 11 Oct 2010 — 5,868 days ago. Our archive can't say whether the horse is still in training.
Last run Oct 2010 · 3rd of 13
KTB Profile

Diamond Brooch (IRE) is yet to win from 3 starts, though has placed twice. Best effort: 2nd of 15 at Navan (Oct 2010).

Based on 3 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

Best recent KTB Rating 91A the best of the last 3 rated runs · Navan, 6 Oct 2010

What the horse achieved in each race, in pounds on the official-rating scale, from the weight carried, the lengths beaten and the race's own level solved across the archive — never the market, never the official rating as a starting point. The headline is the best of the horse's last three rated runs on that code — its best recent day. The KTB Rating on a racecard is a different reading of the same figures: the level the horse has been running to, an average of up to its last six runs with the latest counting most, so the two can differ. A, B or C on a run is how much known form was in that race. What this means →

Flat 3 figures · best 91A · median 88
GoingRunsBestMedianSince 4 Nov 2025
Soft391A88—
DistanceRunsBestMedianSince 4 Nov 2025
6f – 7f288A74.5—
1m – 1m1f1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 3 figures from 3 runs · as at 4 Oct 2026 · 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
Danehill Dancer (IRE)

Progeny in our archive have won 11.2% of 10,094 runs since Jan 2008 (783 horses).

Weakest over 2m5f – 3m (all codes): 6.2% from 130.

GoingRunsWinsSRvs sireThis horse
Firm911011%−0.2—
Good to Firm1,74022312.8%+1.6—
Good2,4992489.9%−1.3—
Good to Soft1,08912011%−0.2—
Soft1,73322412.9%+1.70 from 3
Heavy6567811.9%+0.7—
Standard (AW)2,2852249.8%−1.4—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f4035313.2%+2—
6f – 7f2,71033112.2%+10 from 2
1m – 1m1f2,71531211.5%+0.30 from 1
1m2f – 1m4f2,31123710.3%−0.9—
1m5f – 2m1,27013410.6%−0.6—
2m1f – 2m4f533519.6%−1.6—
2m5f – 3m13086.2%−5—
Over 3m2214.5%−6.7—

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
Surval (IRE) (Sadler's Wells)

4 siblings in the archive, 2 winners — best of them The Wallace Line (IRE) (2 wins).

The wins came over 1m1½f–3m3f; the highest grade won is Class 4 (The Wallace Line (IRE)).

ProduceRunsWinsWin tripsBest grade
The Wallace Line (IRE)2822m1½f–3m3fClass 4
Gumnd (IRE)2811m1½fClass 5
Lady Rose Anne (IRE)70——
Pensionnat (IRE)80——

Record by conditions

CourseRunsWinsSR£1
Curragh 2 0 0% −2.00
Navan 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 2 0 0% −2.00
1m – 1m1f 1 0 0% −1.00

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 KTB Jockey SP
2010 · 3 runs
11 Oct 10+5d Curragh Tri Equestrian European Breeders Fund Fillies Maiden 7f · Yielding · 13 ran 3/13 3½ 9-0 88A Johnny Murtagh 5/2
06 Oct 10+25d Navan Irish Stallion Farms E.B.F. Fillies Maiden 1m · Yielding · 15 ran 2/15 shd 9-0 91A Johnny Murtagh 5/1
11 Sep 10 Curragh Thorough Brew Village European Breeders Fund Maiden 7f · Soft · 19 ran 14/19 1¼ 8-12 61A Johnny Murtagh 7/1

Quick answers

How many races has Diamond Brooch won?
Diamond Brooch (IRE) has yet to win, from 3 archived starts in 2010. Placed 2 times in total (66.7% of starts).
Who trained Diamond Brooch?
Diamond Brooch (IRE) was trained by A P O'Brien on the most recent run on record, at Curragh on 11 October 2010.
Who is Diamond Brooch's sire?
Diamond Brooch (IRE) is by Danehill Dancer (IRE) out of Surval (IRE), whose sire is Sadler's Wells.
What is Diamond Brooch's sire's record?
Danehill Dancer (IRE)'s progeny in our archive have won 11.2% of 10,094 runs since Jan 2008 (783 horses), Flat and jumps together. Weakest over 2m5f – 3m (all codes): 6.2% from 130.
Who are Diamond Brooch's siblings?
Out of Surval (IRE), Diamond Brooch (IRE) has 4 other produce in our archive, 2 of them winners. Most wins: The Wallace Line (IRE) (2). Highest grade won: Class 4 (The Wallace Line (IRE)). The wins came over 1m1½f–3m3f. As at Nov 2026.

Record shown from September 2010. 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.