Horse profile
Jackie Boy (IRE)
by Lord Americo (IRE) out of Riverpauper (IRE) (Over The River)
27 runs · 13 courses · from Jan 2005
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 17 Mar 2010 — 6,068 days ago. Our archive can't say whether the horse is still in training.
Last run Mar 2010 · 5th of 9
4 wins · Huntingdon & Exeter
Last raced off OR 91
KTB Profile
Jackie Boy (IRE) is 4 from 27. Hasn't won since Feb 2008.
Based on 27 archived runs · updated 28 Oct 2026
- 4–27Wins / Runs
- 14.8%Strike rate
- 8 (29.6%)Placed
- −6.00£1 level staken=27 at SP
- 1.30Fair A/E n=27 · 1.11 incl. margin
- 97Highest OR
- 73dAvg 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.
Official rating91↓ 6lb off peak
91
81–97
KTB Speed and Rating
KTB Speed
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
Sire
Lord Americo (IRE)
Progeny in our archive have won 7.8% of 2,189 runs since Jan 2008 (237 horses).
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 15 | 0 | 0% | −7.8 | — |
| Good to Firm | 216 | 20 | 9.3% | +1.5 | 2 from 4 |
| Good | 601 | 51 | 8.5% | +0.7 | 1 from 13 |
| Good to Soft | 340 | 26 | 7.6% | −0.2 | 1 from 4 |
| Soft | 622 | 50 | 8% | +0.2 | 0 from 4 |
| Heavy | 383 | 23 | 6% | −1.8 | 0 from 2 |
| Standard (AW) | 12 | 1 | 8.3% | +0.5 | — |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 1 | 0 | 0% | −7.8 | — |
| 6f – 7f | 2 | 0 | 0% | −7.8 | — |
| 1m – 1m1f | 1 | 0 | 0% | −7.8 | — |
| 1m2f – 1m4f | 4 | 0 | 0% | −7.8 | — |
| 1m5f – 2m | 515 | 29 | 5.6% | −2.2 | — |
| 2m1f – 2m4f | 785 | 60 | 7.6% | −0.2 | 0 from 5 |
| 2m5f – 3m | 691 | 64 | 9.3% | +1.5 | 1 from 14 |
| Over 3m | 190 | 18 | 9.5% | +1.7 | 3 from 8 |
Flat and jumps together (all codes) · since Jan 2008 · as at 27 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
Dam
Riverpauper (IRE) (Over The River)
3 siblings in the archive, 1 winner — best of them Five Star Wilsham (IRE) (5 wins).
The wins came over 2m3½f–3m½f; the highest grade won is Class 2 (Five Star Wilsham (IRE)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Five Star Wilsham (IRE) | 40 | 5 | 2m3½f–3m½f | Class 2 |
| Lord Of The Walk (IRE) | 4 | 0 | — | — |
| Control The Flow (IRE) | 1 | 0 | — | — |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good | 13 | 1 | 8% | −8.00 |
| Soft | 4 | 0 | 0% | −4.00 |
| Good to Soft | 4 | 1 | 25% | +4.00 |
| Good to Firm | 4 | 2 | 50% | +4.00 |
| Heavy | 2 | 0 | 0% | −2.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 4 | 19 | 3 | 16% | −1.50 |
| Class 5 | 7 | 1 | 14% | −3.50 |
| Class 3 | 1 | 0 | 0% | −1.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Huntingdon | 8 | 3 | 38% | +8.50 |
| Warwick | 3 | 0 | 0% | −3.00 |
| Wincanton | 2 | 0 | 0% | −2.00 |
| Worcester | 2 | 0 | 0% | −2.00 |
| Stratford | 2 | 0 | 0% | −2.00 |
| Uttoxeter | 2 | 0 | 0% | −2.00 |
| Exeter | 2 | 1 | 50% | +2.50 |
| Doncaster | 1 | 0 | 0% | −1.00 |
| Southwell | 1 | 0 | 0% | −1.00 |
| Fontwell | 1 | 0 | 0% | −1.00 |
| Towcester | 1 | 0 | 0% | −1.00 |
| Folkestone | 1 | 0 | 0% | −1.00 |
| Hereford | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2m5f – 3m | 14 | 1 | 7% | −9.50 |
| Over 3m | 8 | 3 | 38% | +8.50 |
| 2m1f – 2m4f | 5 | 0 | 0% | −5.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Paddy Brennan | 8 | 1 | 13% | −3.00 |
| Tony Evans | 8 | 2 | 25% | +0.00 |
| Carl Llewellyn | 3 | 0 | 0% | −3.00 |
| David England | 2 | 1 | 50% | +6.00 |
| Marc Goldstein | 2 | 0 | 0% | −2.00 |
| Sam Twiston-Davies | 1 | 0 | 0% | −1.00 |
| Tom Molloy | 1 | 0 | 0% | −1.00 |
| Richard Killoran | 1 | 0 | 0% | −1.00 |
| Mr S Crawford | 1 | 0 | 0% | −1.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2010 | 2 | 0 | 0% | −2.00 |
| 2009 | 7 | 0 | 0% | −7.00 |
| 2008 | 1 | 1 | 100% | +7.00 |
| 2007 | 3 | 1 | 33% | +2.00 |
| 2006 | 8 | 2 | 25% | +0.00 |
| 2005 | 6 | 0 | 0% | −6.00 |
| Type | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Hurdle | 16 | 4 | 25% | +5.00 |
| Chase | 11 | 0 | 0% | −11.00 |
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 |
|---|---|---|---|---|---|---|---|---|---|
| 2010 · 2 runs | |||||||||
| 17 Mar 10+20d | Huntingdon | 32Red.com Handicap Chase | 5/9 | 2 | 11-3 | 91 | 99A | David England | 7/1 |
| 25 Feb 10+76d | Huntingdon | John Bigg Oxo Handicap Chase | 7/12 | 21 | 10-8 | 95 | 81C | Paddy Brennan | 14/1 |
| 2009 · 7 runs | |||||||||
| 11 Dec 09+30d | Doncaster | Get A Free Bet at Betdaq Handicap Chase | 8/11 | nk | 9-8 | 95 | 71C | Sam Twiston-Davies | 7/1 |
| 11 Nov 09+17d | Warwick | Turftv Handicap Chase | 2/10 | 4 | 11-12 | 95 | 115B | Paddy Brennan | 6/1 |
| 25 Oct 09+17d | Wincanton | Thales Naval Novices' Handicap Chase | UR/8 | — | 11-4 | 96 | — | Tom Molloy | 5/2F |
| 08 Oct 09+49d | Worcester | Ladbrokes Novices' Handicap Chase | 2/11 | 3¼ | 11-2 | 93 | 111A | Paddy Brennan | 4/1J |
| 20 Aug 09+21d | Stratford | Paddock Suite Handicap Chase | 3/7 | 8 | 11-3 | 94 | 97A | Paddy Brennan | 7/2 |
| 30 Jul 09+15d | Stratford | John Dunbar Memorial Novices' Handicap Chase | 2/8 | hd | 11-2 | 89 | 113A | Paddy Brennan | 7/1 |
| 15 Jul 09+524d | Uttoxeter | Aspall's Perronelle's Blush Cyder Novices' Handicap Chase | PU/13 | — | 11-9 | 92 | — | Paddy Brennan | 10/1 |
| 2008 · 1 run | |||||||||
| 07 Feb 08+75d | Huntingdon | Betfredcasino Handicap Hurdle | 1/15 | 10-10 | 97 | 109A | David England | 7/1 | |
| 2007 · 3 runs | |||||||||
| 24 Nov 07+24d | Huntingdon | Toteplacepot Handicap Hurdle | UR/11 | — | 10-11 | 97 | — | Richard Killoran | 7/2F |
| 31 Oct 07+15d | Huntingdon | Goings Good Speedy Hi-Lights 01284829895 Handicap Hurdle | 1/13 | 10-3 | 92 | 99C | Paddy Brennan | 4/1 | |
| 16 Oct 07+414d | Huntingdon | WBX.COM 25 Free Bet For New Accounts Handicap Hurdle | 5/13 | 1¼ | 10-12 | 92 | 102C | Paddy Brennan | 3/1F |
| 2006 · 8 runs | |||||||||
| 28 Aug 06+61d | Huntingdon | Supporting Saxongate Handicap Hurdle | 1/8 | 11-7 | 86 | 97C | Tony Evans | 5/2J | |
| 28 Jun 06+24d | Worcester | Wbx.com Novices' Handicap Hurdle | 4/15 | 14 | 11-4 | 87 | 82C | Tony Evans | 6/1 |
| 04 Jun 06+18d | Southwell | Book Hospitality At Southwell Conditionals' Handicap Hurdle | 2/14 | 21 | 10-7 | 87 | 86C | Marc Goldstein | 5/1F |
| 17 May 06+12d | Exeter | Marlborough Bookshop And Sporting Gallery Handicap Hurdle | 1/7 | 10-12 | 81 | 97C | Tony Evans | 7/2 | |
| 05 May 06+57d | Fontwell | BGC Handicap Hurdle | 4/15 | 2 | 11-8 | 81 | 111C | Tony Evans | 10/1 |
| 09 Mar 06+14d | Towcester | Conditionals' Handicap Hurdle | PU/17 | — | 10-8 | 83 | — | Marc Goldstein | 15/2 |
| 23 Feb 06+9d | Huntingdon | Villa-seabreeze.com Handicap Hurdle | 6/16 | 1¼ | 11-2 | 85 | 89C | Tony Evans | 20/1 |
| 14 Feb 06+75d | Folkestone | Dymchurch Handicap Hurdle | RO/13 | — | 11-2 | 85 | — | Tony Evans | 16/1 |
| 2005 · 6 runs | |||||||||
| 01 Dec 05+31d | Wincanton | John Meaden 'National Hunt' Novices' Handicap Hurdle | PU/14 | — | 10-8 | 89 | — | Mr S Crawford | 14/1 |
| 31 Oct 05+19d | Warwick | B&B's 'Handicap Chase | 7/13 | 1¾ | 11-4 | 89 | 82C | Tony Evans | 14/1 |
| 12 Oct 05+183d | Uttoxeter | Ace European Group Ltd Handicap Chase | UR/14 | — | 11-12 | 89 | — | Tony Evans | 18/1 |
| 12 Apr 05+46d | Exeter | NH Novices' Hurdle | 9/16 | 3½ | 11-1 | — | 81C | Carl Llewellyn | 25/1 |
| 25 Feb 05+51d | Warwick | NH Novices' Hurdle | 4/9 | 4 | 11-3 | — | 85C | Carl Llewellyn | 50/1 |
| 05 Jan 05 | Hereford | NH Novices' Hurdle (Div 2) | 6/9 | 21 | 11-4 | — | 91C | Carl Llewellyn | 16/1 |
Quick answers
- How many races has Jackie Boy won?
- Jackie Boy (IRE) won 4 of 27 archived starts between 2005 and 2010, a strike rate of 14.8%. Placed 8 times in total (29.6% of starts).
- Who trained Jackie Boy?
- Jackie Boy (IRE) was trained by Nigel Twiston-Davies on the most recent run on record, at Huntingdon on 17 March 2010.
- Who is Jackie Boy's sire?
- Jackie Boy (IRE) is by Lord Americo (IRE) out of Riverpauper (IRE), whose sire is Over The River.
- What going does Jackie Boy prefer?
- Jackie Boy (IRE) has the best record on good to firm going: 2 wins from 4 starts (50%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
- What is Jackie Boy's official rating?
- The most recent official rating on record is 91, from the run on 17 March 2010. The highest on record is 97.
- What is Jackie Boy's sire's record?
- Lord Americo (IRE)'s progeny in our archive have won 7.8% of 2,189 runs since Jan 2008 (237 horses), Flat and jumps together.
- Who are Jackie Boy's siblings?
- Out of Riverpauper (IRE), Jackie Boy (IRE) has 3 other produce in our archive, 1 of them a winner. Most wins: Five Star Wilsham (IRE) (5). Highest grade won: Class 2 (Five Star Wilsham (IRE)). The wins came over 2m3½f–3m½f. As at Oct 2026.