Sierra Alpha (GB)
Sierra Alpha (GB) is 1 from 7, the win coming at Class 5 level. Hasn't won since Aug 2009. Last raced off a career-high mark of 82.
- 1–7Wins / Runs
- 14.3%Strike rate
- 3 (42.9%)Placed
- +22.00£1 level staken=7 at SP
- 0.89Fair A/E n=7 · 0.76 incl. margin
- 82Highest OR
- 68dAvg 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 13.7% of 11,842 runs since Jan 2008 (983 horses).
Strongest on firm going: 16.8% from 101. Weakest on heavy going: 7.9% from 428. Weakest over 2m5f – 3m (all codes): 9.1% from 209.
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 101 | 17 | 16.8% | +3.1 | — |
| Good to Firm | 2,107 | 286 | 13.6% | −0.1 | 0 from 3 |
| Good | 2,966 | 424 | 14.3% | +0.6 | 1 from 1 |
| Good to Soft | 1,324 | 165 | 12.5% | −1.2 | 0 from 1 |
| Soft | 1,413 | 160 | 11.3% | −2.4 | — |
| Heavy | 428 | 34 | 7.9% | −5.8 | — |
| Standard (AW) | 3,501 | 538 | 15.4% | +1.7 | 0 from 2 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 253 | 32 | 12.6% | −1.1 | — |
| 6f – 7f | 2,309 | 291 | 12.6% | −1.1 | 1 from 1 |
| 1m – 1m1f | 2,882 | 427 | 14.8% | +1.1 | — |
| 1m2f – 1m4f | 3,796 | 558 | 14.7% | +1 | 0 from 5 |
| 1m5f – 2m | 1,682 | 218 | 13% | −0.7 | 0 from 1 |
| 2m1f – 2m4f | 683 | 76 | 11.1% | −2.6 | — |
| 2m5f – 3m | 209 | 19 | 9.1% | −4.6 | — |
| Over 3m | 28 | 3 | 10.7% | −3 | — |
Flat and jumps together (all codes) · since Jan 2008 · as at 22 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
3 siblings in the archive, 2 winners — best of them Slumber (GB) (2 wins).
The wins came over 1m2f–1m4f; the highest grade won is Listed (Slumber (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Slumber (GB) | 7 | 2 | 1m2f | Listed |
| Warming Up (IRE) | 8 | 1 | 1m4f | Class 6 |
| Thornylee (GB) | 1 | 0 | — | — |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good to Firm | 3 | 0 | 0% | −3.00 |
| Standard (AW) | 2 | 0 | 0% | −2.00 |
| Good to Soft | 1 | 0 | 0% | −1.00 |
| Good | 1 | 1 | 100% | +28.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 4 | 4 | 0 | 0% | −4.00 |
| Class 3 | 2 | 0 | 0% | −2.00 |
| Class 5 | 1 | 1 | 100% | +28.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Kempton (AW) | 2 | 0 | 0% | −2.00 |
| Nottingham | 1 | 0 | 0% | −1.00 |
| Newmarket | 1 | 0 | 0% | −1.00 |
| Leicester | 1 | 0 | 0% | −1.00 |
| Salisbury | 1 | 0 | 0% | −1.00 |
| Warwick | 1 | 1 | 100% | +28.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 1m2f – 1m4f | 5 | 0 | 0% | −5.00 |
| 1m5f – 2m | 1 | 0 | 0% | −1.00 |
| 6f – 7f | 1 | 1 | 100% | +28.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Ted Durcan | 3 | 0 | 0% | −3.00 |
| Philip Robinson | 2 | 0 | 0% | −2.00 |
| Pat Dobbs | 1 | 0 | 0% | −1.00 |
| Jim Crowley | 1 | 1 | 100% | +28.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2010 | 6 | 0 | 0% | −6.00 |
| 2009 | 1 | 1 | 100% | +28.00 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| 14 Oct 10+65d | Kempton (AW) | betdaq.com Handicap | 6/6 | 20 | 9-7 | 82 | 66C | Pat Dobbs | 2/1J |
| 10 Aug 10+18d | Nottingham | J2o White Blend Summer Series Handicap | 4/7 | 9 | 8-10 | 82 | 61C | Philip Robinson | 7/4F |
| 23 Jul 10+44d | Newmarket | Sportingbet Handicap | 2/9 | 1 | 8-7 | 80 | 74A | Philip Robinson | 9/4F |
| 09 Jun 10+16d | Kempton (AW) | Digibet.com Handicap | 2/12 | 4½ | 9-5 | 79 | 87A | Ted Durcan | 16/1 |
| 24 May 10+22d | Leicester | Ladbrokes.com Belvoir Castle Handicap | 3/7 | 2¾ | 9-6 | 79 | 79A | Ted Durcan | 10/1 |
| 02 May 10+244d | Salisbury | toteswinger Handicap | 5/11 | 2½ | 9-3 | 79 | 80A | Ted Durcan | 7/1 |
| 31 Aug 09 | Warwick | E.B.F. Maiden Stakes (Div 2) | 1/11 | 9-3 | 79 | 82A | Jim Crowley | 28/1 |
Quick answers
- How many races has Sierra Alpha (GB) won?
- Sierra Alpha (GB) won 1 of 7 archived starts between 2009 and 2010, a strike rate of 14.3%. Placed 3 times in total (42.9% of starts).
- Who trained Sierra Alpha (GB)?
- Sierra Alpha (GB) was trained by Amanda Perrett on the most recent run on record, at Kempton (AW) on 14 October 2010.
- Who is Sierra Alpha (GB)'s sire?
- Sierra Alpha (GB) is by Dansili (GB) out of Sound Asleep (USA), whose sire is Woodman.
- What is Sierra Alpha (GB)'s official rating?
- The most recent official rating on record is 82, from the run on 14 October 2010. That is also the highest on record.
- What is Sierra Alpha (GB)'s sire's record?
- Dansili (GB)'s progeny in our archive have won 13.7% of 11,842 runs since Jan 2008 (983 horses), Flat and jumps together. Strongest on firm going: 16.8% from 101. Weakest on heavy going: 7.9% from 428. Weakest over 2m5f – 3m (all codes): 9.1% from 209.
- Who are Sierra Alpha (GB)'s siblings?
- Out of Sound Asleep (USA), Sierra Alpha (GB) has 3 other produce in our archive, 2 of them winners. Most wins: Slumber (GB) (2). Highest grade won: Listed (Slumber (GB)). The wins came over 1m2f–1m4f. As at Oct 2026.