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Horse profile

Deadly Nightshade (USA)

3yo filly (at last run, Sep 2023) · Last trainer Joseph Patrick O'Brien · Last owner Mrs John Magniermichael Taborderrick Smithwesterberg
by Justify (USA) out of Fabulous (IRE) (Galileo)
4 runs · 4 courses · from Jun 2023
As at 27 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 30 Sep 2023 — 1,123 days ago. Our archive can't say whether the horse is still in training.
Last run Sep 2023 · 3rd of 9
KTB Profile

Deadly Nightshade is a filly by Justify out of a Galileo mare who was placed on three of her four starts over 1m2f to 1m4f on turf. She finished second of eight at Galway in Sep 2023 and third of nine at Killarney later that month in the Irish Stallion Farms Ebf Fillies Maiden. All four runs came on different courses between Jun 2023 and Sep 2023. Her last run at Killarney in Sep 2023 was on good to soft ground.

Based on 4 archived runs · updated 27 Oct 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 120 the best of the last 3 graded (A or B) runs · Bellewstown, 29 Aug 2023

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 4 figures · best 120A · median 104.5
GoingRunsBestMedianSince 27 Oct 2025
Good to Soft2120A106—
Heavy1———
Soft1———
DistanceRunsBestMedianSince 27 Oct 2025
1m2f – 1m4f4120A104.5—

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 4 figures from 4 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 79A the best of the last 3 rated runs · Galway, 12 Sep 2023

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 4 figures · best 79A · median 78
GoingRunsBestMedianSince 27 Oct 2025
Good to Soft278A71.5—
Heavy1———
Soft1———
DistanceRunsBestMedianSince 27 Oct 2025
1m2f – 1m4f479A78—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 4 figures from 4 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
Justify (USA)

Progeny in our archive have won 17.9% of 525 runs since Jan 2008 (98 horses).

Strongest over 6f – 7f (all codes): 23.5% from 149. Weakest over 1m – 1m1f (all codes): 13.7% from 161.

GoingRunsWinsSRvs sireThis horse
Firm100%−17.9—
Good to Firm751520%+2.1—
Good1673018%+0.1—
Good to Soft57915.8%−2.10 from 2
Soft731723.3%+5.40 from 1
Heavy26311.5%−6.40 from 1
Standard (AW)1262015.9%−2—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f3266.7%+48.8—
6f – 7f1493523.5%+5.6—
1m – 1m1f1612213.7%−4.2—
1m2f – 1m4f1742614.9%−30 from 4
1m5f – 2m34823.5%+5.6—
2m1f – 2m4f4125%+7.1—

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
Fabulous (IRE) (Galileo)

4 siblings in the archive, 3 winners — best of them Scandinavia (USA) (9 wins).

The wins came over 6½f–2m4f; the highest grade won is Group 1 (Scandinavia (USA)).

Family form: Scandinavia (USA) finished 2nd of 10 at Longchamp (FR), 3 Oct 2026.

ProduceRunsWinsWin tripsBest grade
Scandinavia (USA)1491m2f–2m4fGroup 1
Above The Curve (USA)1341m2f–1m2½fGroup 1
Thinking Of You (USA)1116½f—
Brandtmann (USA)20——

Record by conditions

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

CourseRunsWinsSR£1
Killarney 1 0 0% −1.00
Galway 1 0 0% −1.00
Bellewstown 1 0 0% −1.00
Leopardstown 1 0 0% −1.00

JockeyRunsWinsSR£1
Dylan Browne McMonagle 2 0 0% −2.00
Declan McDonogh 1 0 0% −1.00
Mikey Sheehy 1 0 0% −1.00

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 SpdKTB Jockey SP
2023 · 4 runs
30 Sep 23+18d Killarney Irish Stallion Farms Ebf Fillies Maiden 11f · Heavy · 9 ran 3/9 1 9-3 117A78A Declan McDonogh 5/2J
12 Sep 23+14d Galway Sean Cleary Memorial Fillies Maiden 12f · Soft · 8 ran 2/8 nse 9-3 87A79A Dylan Browne McMonagle 2/5F
29 Aug 23+68d Bellewstown Gibneys Gormanston Fillies Maiden 12f · Good To Yielding · 12 ran 3/12 2½ 9-3 120A78A Dylan Browne McMonagle 7/2
22 Jun 23 Leopardstown Bulmers Live At Leopardstown Fillies Maiden 12f · Good To Yielding · 12 ran 6/12 3¾ 9-0 92A65A Mikey Sheehy 11/2

Quick answers

How many races has Deadly Nightshade won?
Deadly Nightshade (USA) has yet to win, from 4 archived starts in 2023. Placed 3 times in total (75% of starts).
Who trained Deadly Nightshade?
Deadly Nightshade (USA) was trained by Joseph Patrick O'Brien on the most recent run on record, at Killarney on 30 September 2023.
Who is Deadly Nightshade's sire?
Deadly Nightshade (USA) is by Justify (USA) out of Fabulous (IRE), whose sire is Galileo.
What is Deadly Nightshade's sire's record?
Justify (USA)'s progeny in our archive have won 17.9% of 525 runs since Jan 2008 (98 horses), Flat and jumps together. Strongest over 6f – 7f (all codes): 23.5% from 149. Weakest over 1m – 1m1f (all codes): 13.7% from 161.
Who are Deadly Nightshade's siblings?
Out of Fabulous (IRE), Deadly Nightshade (USA) has 4 other produce in our archive, 3 of them winners. Most wins: Scandinavia (USA) (9). Highest grade won: Group 1 (Scandinavia (USA)). The wins came over 6½f–2m4f. As at Oct 2026.

Record shown from June 2023. 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.