Best Guess (USA)
Best Guess (USA) is 3 from 7. Hasn't won since Sep 2006. Each win came on a first visit to the course. Last raced off a career-high mark of 79.
- 3–7Wins / Runs
- 42.9%Strike rate
- 4 (57.1%)Placed
- +18.00£1 level staken=7 at SP
- 3.66Fair A/E n=7 · 3.15 incl. margin
- 79Highest OR
- 38dBetween runs (median)longest 226 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 10.6% of 141 runs since Mar 2008 (10 horses).
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Good to Firm | 26 | 1 | 3.8% | −6.8 | — |
| Good | 46 | 8 | 17.4% | +6.8 | 1 from 3 |
| Good to Soft | 24 | 1 | 4.2% | −6.4 | — |
| Soft | 13 | 2 | 15.4% | +4.8 | 1 from 2 |
| Heavy | 9 | 1 | 11.1% | +0.5 | 1 from 1 |
| Standard (AW) | 23 | 2 | 8.7% | −1.9 | 0 from 1 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 1 | 1 | 100% | +89.4 | — |
| 6f – 7f | 23 | 3 | 13% | +2.4 | 2 from 4 |
| 1m – 1m1f | 29 | 2 | 6.9% | −3.7 | 1 from 2 |
| 1m2f – 1m4f | 18 | 0 | 0% | −10.6 | 0 from 1 |
| 1m5f – 2m | 23 | 1 | 4.3% | −6.3 | — |
| 2m1f – 2m4f | 32 | 8 | 25% | +14.4 | — |
| 2m5f – 3m | 15 | 0 | 0% | −10.6 | — |
Flat and jumps together (all codes) · since Mar 2008 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
No other produce in our archive. It holds racing in Great Britain, Ireland and France from 2005, so siblings racing elsewhere won’t appear here.
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good | 3 | 1 | 33% | +2.00 |
| Soft | 2 | 1 | 50% | +9.00 |
| Heavy | 1 | 1 | 100% | +8.00 |
| Standard (AW) | 1 | 0 | 0% | −1.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 4 | 5 | 2 | 40% | +15.00 |
| Class 5 | 2 | 1 | 50% | +3.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Newbury | 1 | 0 | 0% | −1.00 |
| Thirsk | 1 | 1 | 100% | +8.00 |
| Kempton (AW) | 1 | 0 | 0% | −1.00 |
| Sandown | 1 | 1 | 100% | +10.00 |
| Catterick | 1 | 0 | 0% | −1.00 |
| Newmarket | 1 | 1 | 100% | +4.00 |
| Redcar | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 6f – 7f | 4 | 2 | 50% | +12.00 |
| 1m – 1m1f | 2 | 1 | 50% | +7.00 |
| 1m2f – 1m4f | 1 | 0 | 0% | −1.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Adrian McCarthy | 4 | 1 | 25% | +5.00 |
| Jamie Spencer | 2 | 1 | 50% | +3.00 |
| Ryan Moore | 1 | 1 | 100% | +10.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2006 | 4 | 2 | 50% | +16.00 |
| 2005 | 3 | 1 | 33% | +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
| Date | Course | Race | Pos | Btn | Wgt | OR | KTB | Jockey | SP |
|---|---|---|---|---|---|---|---|---|---|
| 2006 · 4 runs | |||||||||
| 10 Oct 06+38d | Newbury | betdaq.co.Uk Fillies' Handicap | 4/12 | ½ | 8-11 | 79 | 58C | Adrian McCarthy | 11/2 |
| 02 Sep 06+45d | Thirsk | Rectangle Fillies' Handicap | 1/11 | 9-2 | 76 | 92C | Adrian McCarthy | 8/1 | |
| 19 Jul 06+51d | Kempton (AW) | Book Now For Irish Night Fillies' Handicap | 4/6 | 1¾ | 8-13 | 76 | 67C | Adrian McCarthy | 7/1 |
| 29 May 06+226d | Sandown | Range Rover Handicap | 1/6 | 8-11 | 73 | 85C | Ryan Moore | 10/1 | |
| 2005 · 3 runs | |||||||||
| 15 Oct 05+25d | Catterick | totescoop6 Nursery Handicap | 8/17 | 1¾ | 8-13 | 77 | 51C | Adrian McCarthy | 10/1 |
| 20 Sep 05+31d | Newmarket | NGK Spark Plugs Anniversary Median Auction Maiden Stakes | 1/10 | 8-9 | — | — | Jamie Spencer | 4/1 | |
| 20 Aug 05 | Redcar | Flower Box Guisborough & Stokesley Median Auction Maiden Stk | 2/18 | 3 | 8-9 | — | 78C | Jamie Spencer | 9/2 |
Quick answers
- How many races has Best Guess won?
- Best Guess (USA) won 3 of 7 archived starts between 2005 and 2006, a strike rate of 42.9%. Placed 4 times in total (57.1% of starts).
- Who trained Best Guess?
- Best Guess (USA) was trained by Peter Chapple-Hyam on the most recent run on record, at Newbury on 10 October 2006.
- Who is Best Guess's sire?
- Best Guess (USA) is by Stormin Fever (USA) out of Probing (USA), whose sire is Brocco.
- What going does Best Guess prefer?
- Best Guess (USA) has the best record on good going: 1 win from 3 starts (33.3%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
- What is Best Guess's official rating?
- The most recent official rating on record is 79, from the run on 10 October 2006. That is also the highest on record.
- What is Best Guess's sire's record?
- Stormin Fever (USA)'s progeny in our archive have won 10.6% of 141 runs since Mar 2008 (10 horses), Flat and jumps together.