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Horse profile

Sissy Slew (USA)

5yo mare (at last run, Mar 2005) · Last trainer M J Grassick · Last owner J Higgins
by Unbridled's Song (USA) out of Missy Slew (USA) (Seattle Slew)
1 run · 1 course · from Mar 2005
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 20 Mar 2005 — 7,900 days ago. Our archive can't say whether the horse is still in training.
Last run Mar 2005 · 7th of 8 Last raced off OR 90
KTB Profile

Lightly raced, with 1 archived start in Mar 2005 as a 5yo mare. Finished 7 of 8 at Curragh last time. By Unbridled's Song (USA), whose progeny in our archive have won 12.6% of 143 runs since Apr 2008.

Based on 1 archived run · updated 5 Nov 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

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 →

Of 1 run looked at, 1 has no figure: no runner of known ability in the race — the level cannot be solved (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
Unbridled's Song (USA)

Progeny in our archive have won 12.6% of 143 runs since Apr 2008 (14 horses).

GoingRunsWinsSRvs sireThis horse
Firm3133.3%+20.7—
Good to Firm22522.7%+10.1—
Good45511.1%−1.5—
Good to Soft1200%−12.6—
Soft1100%−12.60 from 1
Heavy400%−12.6—
Standard (AW)46715.2%+2.6—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f5120%+7.4—
6f – 7f23417.4%+4.8—
1m – 1m1f38513.2%+0.60 from 1
1m2f – 1m4f3139.7%−2.9—
1m5f – 2m3339.1%−3.5—
2m1f – 2m4f8112.5%−0.1—
2m5f – 3m5120%+7.4—

Flat and jumps together (all codes) · since Apr 2008 · as at 5 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Missy Slew (USA) (Seattle Slew)

No other produce in our archive. It holds racing in Great Britain, Ireland and France from 2005, so siblings racing elsewhere won’t appear here.

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

Form

DateCourseRace PosBtn Wgt ORKTB Jockey SP
2005 · 1 run
20 Mar 05 Curragh EBF Park Express Fillies Stakes (Listed) 1m · Soft · 8 ran 7/8 4 9-10 90— N G McCullagh 25/1

Quick answers

How many races has Sissy Slew won?
Sissy Slew (USA) has yet to win, from 1 archived start in 2005.
Who trained Sissy Slew?
Sissy Slew (USA) was trained by M J Grassick on the most recent run on record, at Curragh on 20 March 2005.
Who is Sissy Slew's sire?
Sissy Slew (USA) is by Unbridled's Song (USA) out of Missy Slew (USA), whose sire is Seattle Slew.
What is Sissy Slew's official rating?
The most recent official rating on record is 90, from the run on 20 March 2005.
What is Sissy Slew's sire's record?
Unbridled's Song (USA)'s progeny in our archive have won 12.6% of 143 runs since Apr 2008 (14 horses), Flat and jumps together.

Record shown from March 2005. 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.