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Horse profile

Jimmy's Sister (GB)

6yo mare (at last run, Dec 2019) · Last trainer Tom Gretton · Last owner Ownaracehorse Ltd T R Gretton
by Denounce (GB) out of Sementina (USA) (Silver Charm)
3 runs · 3 courses · from Jun 2018
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 28 Dec 2019 — 2,503 days ago. Our archive can't say whether the horse is still in training.
Last run Dec 2019
KTB Profile

Jimmy's Sister (GB) is yet to win from 3 starts.

Based on 3 archived runs · updated 5 Nov 2026

KTB Speed and Rating

KTB Speed

Best recent Speed — no A or B graded figure in the last 3 runs; the figures below carry grade C

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 →

Jumps 2 figures · best 113C · median 25
GoingRunsBestMedianSince 5 Nov 2025
Heavy1———
Good1———
DistanceRunsBestMedianSince 5 Nov 2025
1m5f – 2m2113C25—

Of 3 runs looked at, 1 has no figure: did not complete (1).

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 2 figures from 3 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 89C the best of the last 2 rated runs · Uttoxeter, 24 Nov 2019

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 — its best recent day. The KTB Rating on a racecard is a different reading of the same figures: the level the horse has been running to, an average of up to its last six runs with the latest counting most, so the two can differ. A, B or C on a run is how much known form was in that race. What this means →

Jumps 2 figures · best 89C · median 85.5
GoingRunsBestMedianSince 5 Nov 2025
Heavy1———
Good1———
DistanceRunsBestMedianSince 5 Nov 2025
1m5f – 2m289C85.5—

Of 3 runs looked at, 1 has no figure: did not complete (or a non-runner row) (1).

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 2 figures from 3 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

Progeny in our archive have won 7.2% of 405 runs since Sep 2010 (34 horses).

Strongest on good going: 11.1% from 108.

GoingRunsWinsSRvs sireThis horse
Firm100%−7.2—
Good to Firm5547.3%+0.1—
Good1081211.1%+3.90 from 1
Good to Soft5523.6%−3.6—
Soft6234.8%−2.40 from 1
Heavy1000%−7.20 from 1
Standard (AW)11487%−0.2—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f31516.1%+8.9—
6f – 7f11198.1%+0.9—
1m – 1m1f7756.5%−0.7—
1m2f – 1m4f4536.7%−0.5—
1m5f – 2m6111.6%−5.60 from 3
2m1f – 2m4f5747%−0.2—
2m5f – 3m1700%−7.2—
Over 3m6233.3%+26.1—

Flat and jumps together (all codes) · since Sep 2010 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Sementina (USA) (Silver Charm)

1 sibling in the archive, 1 winner — best of them Little Jimmy (GB) (8 wins).

The wins came over 1m7½f–2m3½f; the highest grade won is Class 4 (Little Jimmy (GB)).

ProduceRunsWinsWin tripsBest grade
Little Jimmy (GB)4981m7½f–2m3½fClass 4

Record by conditions

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

ClassRunsWinsSR£1
Class 4 2 0 0% −2.00
Class 5 1 0 0% −1.00

CourseRunsWinsSR£1
Catterick 1 0 0% −1.00
Uttoxeter 1 0 0% −1.00
Southwell 1 0 0% −1.00

JockeyRunsWinsSR£1
Robert Dunne 2 0 0% −2.00
Craig Nichol 1 0 0% −1.00

SeasonRunsWinsSR£1
2019 2 0 0% −2.00
2018 1 0 0% −1.00

TypeRunsWinsSR£1
Hurdle 2 0 0% −2.00
NH Flat 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
2019 · 2 runs
28 Dec 19+34d Catterick jumpingforjoy On Racing TV Mares' Novices' Hurdle Class 4 · 1m7½f · Soft · 14 ran PU/14 — 10-12 —— Craig Nichol 150/1
24 Nov 19+537d Uttoxeter Stanley And Matthew Walker Birthday Celebration Mares' 'national Hunt' Novices' Hurdle Class 4 · 2m · Heavy · 14 ran 14/14 69 10-10 -63C89C Robert Dunne 100/1
2018 · 1 run
05 Jun 18 Southwell MS And TJ Haylage Mares' Standard Open NH Flat Race Class 5 · 1m7½f · Good · 13 ran 13/13 25 11-0 113C82C Robert Dunne 80/1

Quick answers

How many races has Jimmy's Sister won?
Jimmy's Sister (GB) has yet to win, from 3 archived starts between 2018 and 2019.
Who trained Jimmy's Sister?
Jimmy's Sister (GB) was trained by Tom Gretton on the most recent run on record, at Catterick on 28 December 2019.
Who is Jimmy's Sister's sire?
Jimmy's Sister (GB) is by Denounce (GB) out of Sementina (USA), whose sire is Silver Charm.
What is Jimmy's Sister's sire's record?
Denounce (GB)'s progeny in our archive have won 7.2% of 405 runs since Sep 2010 (34 horses), Flat and jumps together. Strongest on good going: 11.1% from 108.
Who are Jimmy's Sister's siblings?
Out of Sementina (USA), Jimmy's Sister (GB) has 1 other produce in our archive, 1 of them a winner. Most wins: Little Jimmy (GB) (8). Highest grade won: Class 4 (Little Jimmy (GB)). The wins came over 1m7½f–2m3½f. As at Nov 2026.

Record shown from June 2018. Our archive holds racing in Great Britain, Ireland and France from January 2005. Any runs before that, or in other countries, are not in it. In-running comments are available from 2024 onward.