Skip to content
Horse profile

One Number (USA)

2yo colt · Trainer Joseph Patrick O'Brien · Owner Munirsouedemaclennan Et Al
by Jack Christopher (USA) out of Ghostinhim (USA) (Ghostzapper)
6 runs · 6 courses · from Jun 2026
As at 18 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won at Lingfield (AW) Ran 15 days ago · 5th of 10 Last raced off OR 97
KTB Profile

One Number is a colt by Jack Christopher out of a Ghostzapper mare who has one win from six starts, the success coming in a Class 3 maiden at Lingfield over 1m to 1m1f on standard all-weather in Aug 2026. He is 0 from 4 on turf. His last run, at Dundalk in Oct 2026, was his first for Joseph Patrick O'Brien and saw him finish fifth of 10 in a Class 1 race off an official rating of 97, which was also his career-high mark.

Based on 6 archived runs · run-style from 3 commented runs · updated 18 Oct 2026
KTB at a glance Won on AW, 0 on turf Win at Class 3

KTB Speed and Rating

KTB Speed

Best recent Speed 105 the best of the last 3 graded (A or B) runs · Dundalk (AW) (IRE), 2 Oct 2026

How fast the horse ran, as points against the day-corrected standard time for its course and distance: 100 is the median GB Class 4 handicap winner on that code; one point is 0.1% of the standard time. A, B or C is how much the day's card could tell us, not how good the run was. What this means →

Flat 6 figures · best 105A · median 86.5
GoingRunsBestMedianSince 18 Oct 2025
Standard (AW)2105A100.52 · 105 / 100.5
Soft1——1 · —
Good1——1 · —
Good to Firm1——1 · —
Good to Soft1——1 · —
DistanceRunsBestMedianSince 18 Oct 2025
6f – 7f4105A774 · 105 / 77
1m – 1m1f2101A98.52 · 101 / 98.5

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 6 figures from 6 runs · as at 10 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 95A the best of the last 3 rated runs · Lingfield (AW), 20 Aug 2026 Official rating 97 at the last run, 2 Oct 2026

What the horse achieved in each race, in pounds on the official-rating scale, from the weight carried, the lengths beaten and the race's own level solved across the archive — never the market, never the official rating as a starting point. The headline is the best of the horse's last three rated runs on that code. A, B or C on a run is how much known form was in that race. What this means →

Flat 6 figures · best 95A · median 88.5
GoingRunsBestMedianSince 18 Oct 2025
Standard (AW)295A922 · 95 / 92
Soft1——1 · —
Good1——1 · —
Good to Firm1——1 · —
Good to Soft1——1 · —
DistanceRunsBestMedianSince 18 Oct 2025
6f – 7f495A83.54 · 95 / 83.5
1m – 1m1f295A91.52 · 95 / 91.5

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 6 figures from 6 runs · as at 4 Oct 2026 · 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 from 3 analysed runs

  • Led 1 (33%) · 1 win
  • Midfield 1 (33%) · 0 wins
  • Held up 1 (33%) · 0 wins

Pedigree intelligence

Sire
Jack Christopher (USA)

Progeny in our archive have won 14.3% of 7 runs since Jan 2008 (2 horses). A small sample.

GoingRunsWinsSRvs sireThis horse
Good to Firm200%−14.30 from 1
Good100%−14.30 from 1
Good to Soft100%−14.30 from 1
Soft100%−14.30 from 1
Standard (AW)2150%+35.71 from 2
Distance (all codes)RunsWinsSRvs sireThis horse
6f – 7f500%−14.30 from 4
1m – 1m1f2150%+35.71 from 2

Flat and jumps together (all codes) · since Jan 2008 · as at 18 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Ghostinhim (USA) (Ghostzapper)

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

GoingRunsWinsSR£1
Standard (AW) 2 1 50% −0.20
Soft 1 0 0% −1.00
Good 1 0 0% −1.00
Good to Firm 1 0 0% −1.00
Good to Soft 1 0 0% −1.00

ClassRunsWinsSR£1
Class 1 2 0 0% −2.00
Class 3 1 1 100% +0.80

CourseRunsWinsSR£1
Dundalk (AW) (IRE) 1 0 0% −1.00
Lingfield (AW) 1 1 100% +0.80
Galway (IRE) 1 0 0% −1.00
Naas 1 0 0% −1.00
Ascot 1 0 0% −1.00
Curragh 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 4 0 0% −4.00
1m – 1m1f 2 1 50% −0.20

JockeyRunsWinsSR£1
Dylan Browne McMonagle 4 0 0% −4.00
J M Sheridan 1 0 0% −1.00
David Probert 1 1 100% +0.80

HeadgearRunsWinsSR£1
None 4 0 0% −4.00
Cheekpieces 2 1 50% −0.20

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

DateCourseRace PosBtn Wgt ORSpdKTB Jockey SP
02 Oct 26+43d Dundalk (AW) (IRE) Irish Stallion Farms EBF Star Appeal Stakes (Listed) Class 1 · 7f · Standard · 10 ran 5/10 ¾ 9-5 97105A89A J M Sheridan 14/1
20 Aug 26+24d Lingfield (AW) Free Tips On Attheraces.com Ebf Maiden Stakes (gbb/gbbplus Race) Class 3 · 8f · Standard · 8 ran Set the pace from the off - held clear advantage throughout - ran out easy winner 1/8 9-7 —96B95A David Probert 4/5F
27 Jul 26+23d Galway (IRE) Eventus Irish EBF (C & G) Maiden 7f · Yielding · 8 ran Settled just off the pace - driven in 4th over 2f out and still there 1f out - made no impact 5/8 1¾ 9-5 9777C78A Dylan Browne McMonagle 5/2F
04 Jul 26+17d Naas Irish EBF Pat Smullen Stakes (Listed) 8f · Good · 7 ran Travelled keenly in a forward spot early - 4th at halfway - urged into contention 2f out and driven with a furlong left - stayed on at one gear into 3rd close home 3/7 1½ 9-6 —101A88A Dylan Browne McMonagle 11/2
17 Jun 26+14d Ascot Windsor Castle Stakes (Listed) Class 1 · 6f · Good To Firm · 25 ran Settled towards the far flank early - held a midfield spot without threatening the front end - could find no extra late and beaten well into 18th 18/25 2¼ 9-2 —68C75A Dylan Browne McMonagle 8/1
03 Jun 26 Curragh Pension Structures Irish European Breeders Fund Maiden 6f · Good To Yielding · 13 ran Held up towards the back on the far flank early - still down in 10th at halfway - angled right and made progress inside the final two furlongs - kept on strongly to snatch second close home 2/13 2 9-7 —77C95A Dylan Browne McMonagle 11/1

Quick answers

How many races has One Number (USA) won?
One Number (USA) won 1 of 6 archived starts in 2026, a strike rate of 16.7%. Placed 2 times in total (33.3% of starts).
Who trains One Number (USA)?
One Number (USA) is trained by Joseph Patrick O'Brien, who saddled the horse on its most recent run on 2 October 2026.
Who is One Number (USA)'s sire?
One Number (USA) is by Jack Christopher (USA) out of Ghostinhim (USA), whose sire is Ghostzapper.
What is One Number (USA)'s official rating?
The most recent official rating on record is 97, from the run on 2 October 2026. That is also the highest on record.
What is One Number (USA)'s sire's record?
Jack Christopher (USA)'s progeny in our archive have won 14.3% of 7 runs since Jan 2008 (2 horses), Flat and jumps together. A small sample.

Record shown from June 2026. Our archive holds racing in Great Britain, Ireland and France from January 2005. Runs in other countries are not in it, and earlier runs are not available from our data provider. In-running comments are available from 2024 onward.