Diamond Necklace (USA)
Diamond Necklace (USA) is yet to win from 10 starts, though has placed twice. Best effort: 2nd of 7 at Naas (Aug 2007). Last raced off a career-high mark of 100.
Progeny in our archive
As a dam, Diamond Necklace (USA) has 1 produce in the archive, 1 winner — most wins Raskova (USA) (2 wins).
The wins came over 1m2f; the highest grade won is Class 4 (Raskova (USA)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Raskova (USA) | 19 | 2 | 1m2f | Class 4 |
- 0–10Wins / Runs
- 0%Strike rate
- 2 (20%)Placed
- −10.00£1 level staken=10 at SP
- 0.00Fair A/E n=10 · 0.00 incl. margin
- 100Highest OR
- 19dBetween runs (median)longest 223 d
A/E compares actual wins with what starting prices implied. "Fair" strips the bookmaker margin from the expectation, so favourites and longshots are judged on the same footing — figures near 1.00 mean the market priced this horse about right.
KTB Speed and Rating
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
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
Progeny in our archive have won 12.6% of 143 runs since Apr 2008 (14 horses).
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 3 | 1 | 33.3% | +20.7 | — |
| Good to Firm | 22 | 5 | 22.7% | +10.1 | 0 from 4 |
| Good | 45 | 5 | 11.1% | −1.5 | 0 from 3 |
| Good to Soft | 12 | 0 | 0% | −12.6 | — |
| Soft | 11 | 0 | 0% | −12.6 | 0 from 3 |
| Heavy | 4 | 0 | 0% | −12.6 | — |
| Standard (AW) | 46 | 7 | 15.2% | +2.6 | — |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 5 | 1 | 20% | +7.4 | — |
| 6f – 7f | 23 | 4 | 17.4% | +4.8 | 0 from 1 |
| 1m – 1m1f | 38 | 5 | 13.2% | +0.6 | 0 from 6 |
| 1m2f – 1m4f | 31 | 3 | 9.7% | −2.9 | 0 from 3 |
| 1m5f – 2m | 33 | 3 | 9.1% | −3.5 | — |
| 2m1f – 2m4f | 8 | 1 | 12.5% | −0.1 | — |
| 2m5f – 3m | 5 | 1 | 20% | +7.4 | — |
Flat and jumps together (all codes) · since Apr 2008 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
7 siblings in the archive, 3 winners — best of them Yorgunnabelucky (USA) (5 wins).
The wins came over 1m–1m6f; the highest grade won is Group 1 (Shamardal (USA)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Yorgunnabelucky (USA) | 24 | 5 | 1m2f–1m6f | Class 2 |
| Shamardal (USA) | 3 | 3 | 1m–1m2½f | Group 1 |
| Geoffrey Chaucer (USA) | 7 | 2 | 1m | Group 2 |
| Velikiy Zevs (USA) | 1 | 0 | — | — |
| Jerry Hamilton (USA) | 8 | 0 | — | — |
| Hourglass (IRE) | 2 | 0 | — | — |
| Shamarbelle (IRE) | 4 | 0 | — | — |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good to Firm | 4 | 0 | 0% | −4.00 |
| Soft | 3 | 0 | 0% | −3.00 |
| Good | 3 | 0 | 0% | −3.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Curragh | 3 | 0 | 0% | −3.00 |
| Naas | 2 | 0 | 0% | −2.00 |
| Leopardstown | 2 | 0 | 0% | −2.00 |
| Gowran Park | 1 | 0 | 0% | −1.00 |
| Gowran Park (IRE) | 1 | 0 | 0% | −1.00 |
| Curragh (IRE) | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 1m – 1m1f | 6 | 0 | 0% | −6.00 |
| 1m2f – 1m4f | 3 | 0 | 0% | −3.00 |
| 6f – 7f | 1 | 0 | 0% | −1.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Colm O'Donoghue | 4 | 0 | 0% | −4.00 |
| Seamie Heffernan | 3 | 0 | 0% | −3.00 |
| Kieren Fallon | 2 | 0 | 0% | −2.00 |
| Sean Levey | 1 | 0 | 0% | −1.00 |
| Headgear | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| None | 8 | 0 | 0% | −8.00 |
| Blinkers | 2 | 0 | 0% | −2.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2007 | 8 | 0 | 0% | −8.00 |
| 2006 | 2 | 0 | 0% | −2.00 |
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
Quick answers
- How many races has Diamond Necklace won?
- Diamond Necklace (USA) has yet to win, from 10 archived starts between 2006 and 2007. Placed 2 times in total (20% of starts).
- Who trained Diamond Necklace?
- Diamond Necklace (USA) was trained by A P O'Brien on the most recent run on record, at Curragh on 25 August 2007.
- Who is Diamond Necklace's sire?
- Diamond Necklace (USA) is by Unbridled's Song (USA) out of Helsinki (GB), whose sire is Machiavellian.
- What is Diamond Necklace's official rating?
- The most recent official rating on record is 100, from the run on 25 August 2007. That is also the highest on record.
- What is Diamond Necklace's sire's record?
- Unbridled's Song (USA)'s progeny in our archive have won 12.6% of 143 runs since Apr 2008 (14 horses), Flat and jumps together.
- Who are Diamond Necklace's siblings?
- Out of Helsinki (GB), Diamond Necklace (USA) has 7 other produce in our archive, 3 of them winners. Most wins: Yorgunnabelucky (USA) (5). Highest grade won: Group 1 (Shamardal (USA)). The wins came over 1m–1m6f. As at Nov 2026.
- Has Diamond Necklace produced winners?
- As a dam, Diamond Necklace (USA) has 1 produce in our archive, 1 of them a winner. Most wins: Raskova (USA) (2). Highest grade won: Class 4 (Raskova (USA)). The wins came over 1m2f. As at Nov 2026.