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Horse profile

Mirren (IRE)

2yo filly (at last run, Sep 2006) · Last trainer Liam McAteer · Last owner Mrs B Cosgrove
by Soviet Star (USA) out of Island Ruler (GB) (Ile De Bourbon)
1 run · 1 course · from Sep 2006
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 1 Sep 2006 — 7,361 days ago. Our archive can't say whether the horse is still in training.
Last run Sep 2006 · 14th of 15
KTB Profile

Lightly raced, with 1 archived start in Sep 2006 as a 2yo filly. Finished 14 of 15 at Down Royal last time. By Soviet Star (USA), whose progeny in our archive have won 8.7% of 2,621 runs since Jan 2008.

Based on 1 archived run · 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 26C the best of the last 1 rated run · Down Royal, 1 Sep 2006

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 1 figure · too few for a breakdown

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 1 figure 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
Soviet Star (USA)

Progeny in our archive have won 8.7% of 2,621 runs since Jan 2008 (171 horses).

Weakest on heavy going: 5% from 160. Weakest over 2m1f – 2m4f (all codes): 5.6% from 320.

GoingRunsWinsSRvs sireThis horse
Firm36411.1%+2.4—
Good to Firm425378.7%0—
Good594488.1%−0.6—
Good to Soft235177.2%−1.5—
Soft378287.4%−1.30 from 1
Heavy16085%−3.7—
Standard (AW)7938711%+2.3—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f134118.2%−0.5—
6f – 7f5475510.1%+1.40 from 1
1m – 1m1f5125310.4%+1.7—
1m2f – 1m4f502469.2%+0.5—
1m5f – 2m497387.6%−1.1—
2m1f – 2m4f320185.6%−3.1—
2m5f – 3m10387.8%−0.9—
Over 3m600%−8.7—

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
Island Ruler (GB) (Ile De Bourbon)

3 siblings in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Weet An Haul (GB)130——
Laiedo (GB)10——
Island Rule (IRE)60——

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

Form

DateCourseRace PosBtn Wgt KTB Jockey SP
2006 · 1 run
01 Sep 06 Down Royal Hillsborough Auction Maiden 7f · Soft · 15 ran 14/15 18 8-5 26C D J Moran 20/1

Quick answers

How many races has Mirren won?
Mirren (IRE) has yet to win, from 1 archived start in 2006.
Who trained Mirren?
Mirren (IRE) was trained by Liam McAteer on the most recent run on record, at Down Royal on 1 September 2006.
Who is Mirren's sire?
Mirren (IRE) is by Soviet Star (USA) out of Island Ruler (GB), whose sire is Ile De Bourbon.
What is Mirren's sire's record?
Soviet Star (USA)'s progeny in our archive have won 8.7% of 2,621 runs since Jan 2008 (171 horses), Flat and jumps together. Weakest on heavy going: 5% from 160. Weakest over 2m1f – 2m4f (all codes): 5.6% from 320.
Who are Mirren's siblings?
Out of Island Ruler (GB), Mirren (IRE) has 3 other produce in our archive, 0 of them winners. As at Oct 2026.

Record shown from September 2006. 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.