Star Cluster (GB)
Star Cluster (GB) is 2 from 5, including a Listed win. The biggest win we hold: the Weatherbys Stakes at Sandown (Jul 2006). Hasn't won since Jul 2006. Each win came on a first visit to the course.
Progeny in our archive
As a dam, Star Cluster (GB) has 7 produce in the archive, 4 winners — most wins Encapsulated (GB) (5 wins).
The wins came over 5½f–1m4f; the highest grade won is Class 4 (Asterism (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Encapsulated (GB) | 65 | 5 | 5½f–6f | Class 6 |
| Asterism (GB) | 5 | 1 | 1m4f | Class 4 |
| Cartavio (IRE) | 7 | 1 | 1m2f | Class 5 |
| Executor (GB) | 9 | 1 | 1m | Class 4 |
| Galactic (IRE) | 9 | 0 | — | — |
| Galactic Halo (GB) | 5 | 0 | — | — |
| Quantative (GB) | 2 | 0 | — | — |
- 2–5Wins / Runs
- 40%Strike rate
- 2 (40%)Placed
- +11.00£1 level staken=5 at SP
- 2.05Fair A/E n=5 · 1.81 incl. margin
- 102Highest OR
- 95dAvg between runs
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 8.4% of 2,276 runs since Jan 2008 (162 horses).
Strongest on soft going: 11.5% from 330.
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 26 | 0 | 0% | −8.4 | — |
| Good to Firm | 417 | 32 | 7.7% | −0.7 | 2 from 3 |
| Good | 562 | 58 | 10.3% | +1.9 | 0 from 1 |
| Good to Soft | 281 | 20 | 7.1% | −1.3 | 0 from 1 |
| Soft | 330 | 38 | 11.5% | +3.1 | — |
| Heavy | 116 | 9 | 7.8% | −0.6 | — |
| Standard (AW) | 544 | 35 | 6.4% | −2 | — |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 54 | 2 | 3.7% | −4.7 | — |
| 6f – 7f | 464 | 40 | 8.6% | +0.2 | 1 from 2 |
| 1m – 1m1f | 421 | 41 | 9.7% | +1.3 | 1 from 2 |
| 1m2f – 1m4f | 530 | 48 | 9.1% | +0.7 | 0 from 1 |
| 1m5f – 2m | 418 | 31 | 7.4% | −1 | — |
| 2m1f – 2m4f | 273 | 24 | 8.8% | +0.4 | — |
| 2m5f – 3m | 106 | 6 | 5.7% | −2.7 | — |
| Over 3m | 10 | 0 | 0% | −8.4 | — |
Flat and jumps together (all codes) · since Jan 2008 · as at 21 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
5 siblings in the archive, 0 winners.
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Explode (GB) | 26 | 0 | — | — |
| Denounce (GB) | 1 | 0 | — | — |
| Fen Gypsy (GB) | 5 | 0 | — | — |
| Kilmun (GB) | 5 | 0 | — | — |
| Didifon (GB) | 4 | 0 | — | — |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good to Firm | 3 | 2 | 67% | +13.00 |
| Good | 1 | 0 | 0% | −1.00 |
| Good to Soft | 1 | 0 | 0% | −1.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 1 | 3 | 1 | 33% | +3.00 |
| Class 2 | 1 | 0 | 0% | −1.00 |
| Class 5 | 1 | 1 | 100% | +9.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Ascot | 1 | 0 | 0% | −1.00 |
| Sandown | 1 | 1 | 100% | +5.00 |
| Newbury | 1 | 0 | 0% | −1.00 |
| Leicester | 1 | 0 | 0% | −1.00 |
| Newmarket | 1 | 1 | 100% | +9.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 1m – 1m1f | 2 | 1 | 50% | +4.00 |
| 6f – 7f | 2 | 1 | 50% | +8.00 |
| 1m2f – 1m4f | 1 | 0 | 0% | −1.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Richard Hughes | 4 | 1 | 25% | +2.00 |
| Jimmy Quinn | 1 | 1 | 100% | +9.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2006 | 4 | 1 | 25% | +2.00 |
| 2005 | 1 | 1 | 100% | +9.00 |
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
| Date | Course | Race | Pos | Btn | Wgt | OR | KTB | Jockey | SP |
|---|---|---|---|---|---|---|---|---|---|
| 28 Jul 06+20d | Ascot | Independent Newspaper E.B.F. Valiant Stakes (Fillies Listed) | 5/9 | 3 | 8-11 | 100 | — | Richard Hughes | 9/4F |
| 08 Jul 06+23d | Sandown | Weatherbys Stakes (Fillies' Listed) | 1/10 | 8-12 | 102 | 74C | Richard Hughes | 5/1 | |
| 15 Jun 06+16d | Newbury | Lord Weinstock Memorial Stakes (Fillies Listed) | 4/9 | 1¼ | 8-9 | 94 | 90C | Richard Hughes | 7/2 |
| 30 May 06+319d | Leicester | ladbrokes.Com Fillies' Conditions Stakes | 2/4 | 1½ | 8-9 | 93 | — | Richard Hughes | 9/4 |
| 15 Jul 05 | Newmarket | Brackett Green Maiden Fillies' Stakes | 1/18 | 8-11 | — | 109C | Jimmy Quinn | 9/1 |
Quick answers
- How many races has Star Cluster (GB) won?
- Star Cluster (GB) won 2 of 5 archived starts between 2005 and 2006, a strike rate of 40%. Placed 2 times in total (40% of starts).
- Who trained Star Cluster (GB)?
- Star Cluster (GB) was trained by Sir Henry Cecil on the most recent run on record, at Ascot on 28 July 2006.
- Who is Star Cluster (GB)'s sire?
- Star Cluster (GB) is by Observatory (USA) out of Didicoy (USA), whose sire is Danzig.
- What going does Star Cluster (GB) prefer?
- Star Cluster (GB) has the best record on good to firm going: 2 wins from 3 starts (66.7%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
- What is Star Cluster (GB)'s official rating?
- The most recent official rating on record is 100, from the run on 28 July 2006. The highest on record is 102.
- What is Star Cluster (GB)'s sire's record?
- Observatory (USA)'s progeny in our archive have won 8.4% of 2,276 runs since Jan 2008 (162 horses), Flat and jumps together. Strongest on soft going: 11.5% from 330.
- Who are Star Cluster (GB)'s siblings?
- Out of Didicoy (USA), Star Cluster (GB) has 5 other produce in our archive, 0 of them winners. As at Oct 2026.
- Has Star Cluster (GB) produced winners?
- As a dam, Star Cluster (GB) has 7 produce in our archive, 4 of them winners. Most wins: Encapsulated (GB) (5). Highest grade won: Class 4 (Asterism (GB)). The wins came over 5½f–1m4f. As at Oct 2026.