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Horse profile

You'll Never Know (USA)

4yo filly (at last run, Nov 2011) · Last trainer Mme I Gallorini · Last owner Charles Poli
by Johannesburg (USA) out of Devil On The Run (USA) (Devil His Due)
4 runs · 3 courses · from Sep 2009
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 9 Nov 2011 — 5,467 days ago. Our archive can't say whether the horse is still in training.
Last run Nov 2011 · 6th of 14
KTB Profile

You'll Never Know (USA) is yet to win from 4 starts.

Based on 4 archived runs · updated 28 Oct 2026

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

KTB Rating

Best recent KTB Rating 65A the best of the last 2 rated runs · Fairyhouse, 22 Sep 2009

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 2 figures · best 65A · median 56
GoingRunsBestMedianSince 28 Oct 2025
Soft1———
Good1———
DistanceRunsBestMedianSince 28 Oct 2025
6f – 7f265A56—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 2 figures from 2 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 is derived from in-running commentary, which our data provider does not supply for this horse's races.

Pedigree intelligence

Sire
Johannesburg (USA)

Progeny in our archive have won 9.8% of 2,562 runs since Jan 2008 (191 horses).

Strongest at trips under 6f (all codes): 16% from 244. Weakest over 2m1f – 2m4f (all codes): 3.8% from 104.

GoingRunsWinsSRvs sireThis horse
Firm4124.9%−4.9—
Good to Firm557529.3%−0.5—
Good5607012.5%+2.70 from 1
Good to Soft248187.3%−2.5—
Soft295268.8%−10 from 2
Heavy8889.1%−0.70 from 1
Standard (AW)773769.8%0—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f2443916%+6.2—
6f – 7f8269511.5%+1.70 from 2
1m – 1m1f604416.8%−3—
1m2f – 1m4f452429.3%−0.5—
1m5f – 2m320319.7%−0.1—
2m1f – 2m4f10443.8%−60 from 2
2m5f – 3m1100%−9.8—
Over 3m100%−9.8—

Flat and jumps together (all codes) · since Jan 2008 · as at 28 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Devil On The Run (USA) (Devil His Due)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Ontherun Davis (FR)20——

Record by conditions

GoingRunsWinsSR£1
Soft 2 0 0% −2.00
Heavy 1 0 0% −1.00
Good 1 0 0% −1.00

CourseRunsWinsSR£1
Enghien (FR) 2 0 0% −2.00
Curragh 1 0 0% −1.00
Fairyhouse 1 0 0% −1.00

DistanceRunsWinsSR£1
2m1f – 2m4f 2 0 0% −2.00
6f – 7f 2 0 0% −2.00

JockeyRunsWinsSR£1
Dimitri Herard 2 0 0% −2.00
Ben Curtis 2 0 0% −2.00

HeadgearRunsWinsSR£1
Cheekpieces 2 0 0% −2.00
None 2 0 0% −2.00

SeasonRunsWinsSR£1
2011 2 0 0% −2.00
2009 2 0 0% −2.00

TypeRunsWinsSR£1
Hurdle 2 0 0% −2.00
Flat 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

DateCourseRace PosBtn Wgt KTB Jockey SP
2011 · 2 runs
09 Nov 11+33d Enghien (FR) Prix La Fregate (Hurdle) (Conditions) (4yo Fillies) (Turf) 17.5f · Heavy · 14 ran 6/14 8 9-13 — Dimitri Herard 40/1
07 Oct 11+725d Enghien (FR) Prix Bay Archer (Hurdle) (Conditions) (4-5yo Fillies & Mares) (Turf) 17.5f · Very Soft · 12 ran 5/12 15 9-12 — Dimitri Herard 28/1
2009 · 2 runs
12 Oct 09+20d Curragh TRM Fillies Maiden 7f · Soft · 28 ran 15/28 1½ 8-9 47C Ben Curtis 20/1
22 Sep 09 Fairyhouse Dunboyne Maiden 6f · Good · 18 ran 7/18 1 8-7 65A Ben Curtis 33/1

Quick answers

How many races has You'll Never Know won?
You'll Never Know (USA) has yet to win, from 4 archived starts between 2009 and 2011.
Who trained You'll Never Know?
You'll Never Know (USA) was trained by Mme I Gallorini on the most recent run on record, at Enghien (FR) on 9 November 2011.
Who is You'll Never Know's sire?
You'll Never Know (USA) is by Johannesburg (USA) out of Devil On The Run (USA), whose sire is Devil His Due.
What is You'll Never Know's sire's record?
Johannesburg (USA)'s progeny in our archive have won 9.8% of 2,562 runs since Jan 2008 (191 horses), Flat and jumps together. Strongest at trips under 6f (all codes): 16% from 244. Weakest over 2m1f – 2m4f (all codes): 3.8% from 104.
Who are You'll Never Know's siblings?
Out of Devil On The Run (USA), You'll Never Know (USA) has 1 other produce in our archive, 0 of them winners. As at Oct 2026.

Record shown from September 2009. 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.