Skip to content
Horse profile

One Rule (IRE)

6yo mare (at last run, May 2023) · Last trainer John Groucott · Last owner Rushmoor Stud
by Rule of Law (USA) out of One Move (IRE) (Montelimar)
1 run · 1 course · from May 2023
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 14 May 2023 — 1,256 days ago. Our archive can't say whether the horse is still in training.
Last run May 2023
KTB Profile

Lightly raced, with 1 archived start in May 2023 as a 6yo mare. By Rule of Law (USA), whose progeny in our archive have won 5.8% of 310 runs since Jan 2008.

Based on 1 archived run · updated 21 Oct 2026

KTB Speed and Rating

KTB Speed

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 →

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

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 0 figures from 1 run · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

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 →

Of 1 run 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 · 0 figures from 1 run · 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
Rule of Law (USA)

Progeny in our archive have won 5.8% of 310 runs since Jan 2008 (35 horses).

GoingRunsWinsSRvs sireThis horse
Good to Firm4125%+19.2—
Good12575.6%−0.20 from 1
Good to Soft5635.4%−0.4—
Soft9366.5%+0.7—
Heavy2813.6%−2.2—
Standard (AW)400%−5.8—
Distance (all codes)RunsWinsSRvs sireThis horse
6f – 7f900%−5.8—
1m – 1m1f400%−5.8—
1m5f – 2m8344.8%−1—
2m1f – 2m4f12486.5%+0.7—
2m5f – 3m7556.7%+0.90 from 1
Over 3m1516.7%+0.9—

Flat and jumps together (all codes) · since Jan 2008 · as at 21 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
One Move (IRE) (Montelimar)

3 siblings in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Shadow Shopper (IRE)60——
The Kitchenmecanic (IRE)10——
Katie's Prince (IRE)10——

Too few runs for meaningful splits. The full record is below.

Form

DateCourseRace PosBtn Wgt SpdKTB Jockey SP
14 May 23 Ludlow Visit The Ludlow Farm Shop Today Novices' Hurdle (GBB Race) Class 4 · 21f · Good · 4 ran PU/4 — 10-10 —— Ben Poste 80/1

Quick answers

How many races has One Rule (IRE) won?
One Rule (IRE) has yet to win, from 1 archived start in 2023.
Who trained One Rule (IRE)?
One Rule (IRE) was trained by John Groucott on the most recent run on record, at Ludlow on 14 May 2023.
Who is One Rule (IRE)'s sire?
One Rule (IRE) is by Rule of Law (USA) out of One Move (IRE), whose sire is Montelimar.
What is One Rule (IRE)'s sire's record?
Rule of Law (USA)'s progeny in our archive have won 5.8% of 310 runs since Jan 2008 (35 horses), Flat and jumps together.
Who are One Rule (IRE)'s siblings?
Out of One Move (IRE), One Rule (IRE) has 3 other produce in our archive, 0 of them winners. As at Oct 2026.

Record shown from May 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.