Prime Factor (GB)
Prime Factor (GB) is 1 from 10, the win coming at Class 5 level. Hasn't won since Feb 2008.
- 1–10Wins / Runs
- 10%Strike rate
- 3 (30%)Placed
- −6.00£1 level staken=10 at SP
- 0.89Fair A/E n=10 · 0.74 incl. margin
- 76Highest OR
- 29dAvg 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% of 7,851 runs since Jan 2008 (518 horses).
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 106 | 9 | 8.5% | +0.5 | — |
| Good to Firm | 1,579 | 107 | 6.8% | −1.2 | — |
| Good | 1,506 | 107 | 7.1% | −0.9 | 0 from 1 |
| Good to Soft | 692 | 55 | 7.9% | −0.1 | — |
| Soft | 789 | 61 | 7.7% | −0.3 | 0 from 1 |
| Heavy | 233 | 19 | 8.2% | +0.2 | — |
| Standard (AW) | 2,945 | 267 | 9.1% | +1.1 | 1 from 8 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 1,516 | 123 | 8.1% | +0.1 | 0 from 1 |
| 6f – 7f | 3,498 | 263 | 7.5% | −0.5 | 1 from 9 |
| 1m – 1m1f | 1,067 | 86 | 8.1% | +0.1 | — |
| 1m2f – 1m4f | 917 | 78 | 8.5% | +0.5 | — |
| 1m5f – 2m | 531 | 44 | 8.3% | +0.3 | — |
| 2m1f – 2m4f | 270 | 28 | 10.4% | +2.4 | — |
| 2m5f – 3m | 49 | 3 | 6.1% | −1.9 | — |
| Over 3m | 3 | 0 | 0% | −8 | — |
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, 3 winners — best of them Prince of Medina (GB) (2 wins).
The wins came over 6f–1m6f; the highest grade won is Class 5 (We'll Confer (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Prince of Medina (GB) | 39 | 2 | 1m4f–1m6f | Class 6 |
| We'll Confer (GB) | 8 | 1 | 6f | Class 5 |
| Crown of Medina (GB) | 9 | 1 | 6f | Class 5 |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Standard (AW) | 8 | 1 | 13% | −4.00 |
| Soft | 1 | 0 | 0% | −1.00 |
| Good | 1 | 0 | 0% | −1.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 4 | 5 | 0 | 0% | −5.00 |
| Class 5 | 4 | 1 | 25% | +0.00 |
| Class 3 | 1 | 0 | 0% | −1.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Kempton (AW) | 4 | 1 | 25% | +0.00 |
| Southwell (AW) | 1 | 0 | 0% | −1.00 |
| Lingfield | 1 | 0 | 0% | −1.00 |
| Haydock | 1 | 0 | 0% | −1.00 |
| Chelmsford (AW) | 1 | 0 | 0% | −1.00 |
| Wolverhampton (AW) | 1 | 0 | 0% | −1.00 |
| Lingfield (AW) | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 6f – 7f | 9 | 1 | 11% | −5.00 |
| Under 6f | 1 | 0 | 0% | −1.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Chris Catlin | 2 | 0 | 0% | −2.00 |
| Michael Hills | 2 | 1 | 50% | +2.00 |
| Eddie Ahern | 1 | 0 | 0% | −1.00 |
| Ted Durcan | 1 | 0 | 0% | −1.00 |
| Alan Munro | 1 | 0 | 0% | −1.00 |
| Neil Callan | 1 | 0 | 0% | −1.00 |
| William Buick | 1 | 0 | 0% | −1.00 |
| Ashton Byles | 1 | 0 | 0% | −1.00 |
| Headgear | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| None | 8 | 1 | 13% | −4.00 |
| Blinkers | 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
| Date | Course | Race | Pos | Btn | Wgt | OR | KTB | Jockey | SP |
|---|---|---|---|---|---|---|---|---|---|
| 30 Sep 08+24d | Southwell (AW) | Dave Morgan Memorial Handicap | 7/14 | 3 | 9-3 | 71 | 55A | Chris Catlin | 6/1 |
| 06 Sep 08+12d | Kempton (AW) | Bet totepool In UK And Ireland Handicap | 10/16 | ½ | 8-6 | 73 | 66A | Eddie Ahern | 25/1 |
| 25 Aug 08+16d | Kempton (AW) | Happy Birthday topnaps.com Handicap | 5/11 | 2½ | 9-7 | 75 | 66A | Ted Durcan | 9/2C |
| 09 Aug 08+37d | Lingfield | Specialist Liability Services Handicap | 7/9 | ¾ | 8-10 | 73 | 52A | Alan Munro | 5/1 |
| 03 Jul 08+22d | Haydock | Bohle Handicap | 16/17 | 5 | 9-7 | 76 | 34C | Chris Catlin | 12/1 |
| 11 Jun 08+13d | Kempton (AW) | Digibet Handicap | 2/11 | ¾ | 9-2 | 75 | 79A | Neil Callan | 11/2 |
| 29 May 08+90d | Chelmsford (AW) | Barclay West Handicap | 3/8 | 1 | 8-2 | 76 | 60A | William Buick | 28/1 |
| 29 Feb 08+19d | Wolverhampton (AW) | Time To Book Your Pontin's Break Handicap | 4/10 | ½ | 8-12 | 74 | 75A | Michael Hills | 7/2 |
| 10 Feb 08+25d | Kempton (AW) | Panoramic Bar & Restaurant Median Auction Maiden Stakes | 1/7 | 8-11 | 74 | 70A | Michael Hills | 3/1 | |
| 16 Jan 08 | Lingfield (AW) | Come See Us Soon At Pontin's Median Maiden Auction Stakes | 4/7 | 1¾ | 8-3 | 69 | 42A | Ashton Byles | 10/1 |
Quick answers
- How many races has Prime Factor (GB) won?
- Prime Factor (GB) won 1 of 10 archived starts in 2008, a strike rate of 10%. Placed 3 times in total (30% of starts).
- Who trained Prime Factor (GB)?
- Prime Factor (GB) was trained by B W Hills on the most recent run on record, at Southwell (AW) on 30 September 2008.
- Who is Prime Factor (GB)'s sire?
- Prime Factor (GB) is by Bertolini (USA) out of Medina de Rioseco (GB), whose sire is Puissance.
- What going does Prime Factor (GB) prefer?
- Prime Factor (GB) has the best record on standard (aw) going: 1 win from 8 starts (12.5%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
- What is Prime Factor (GB)'s official rating?
- The most recent official rating on record is 71, from the run on 30 September 2008. The highest on record is 76.
- What is Prime Factor (GB)'s sire's record?
- Bertolini (USA)'s progeny in our archive have won 8% of 7,851 runs since Jan 2008 (518 horses), Flat and jumps together.
- Who are Prime Factor (GB)'s siblings?
- Out of Medina de Rioseco (GB), Prime Factor (GB) has 3 other produce in our archive, 3 of them winners. Most wins: Prince of Medina (GB) (2). Highest grade won: Class 5 (We'll Confer (GB)). The wins came over 6f–1m6f. As at Oct 2026.