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Horse profile

King's Siren (IRE)

3yo filly (at last run, May 2009) · Last trainer Andrew Balding · Last owner J C Smith
by King's Best (USA) out of Blue Siren (GB) (Bluebird)
5 runs · 4 courses · from Sep 2008
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 30 May 2009 — 6,367 days ago. Our archive can't say whether the horse is still in training.
Last run May 2009 · 9th of 12 Won at Lingfield (AW) Last raced off OR 68
KTB Profile

King's Siren (IRE) is 1 from 5, the win coming at Class 5 level. Hasn't won since Oct 2008. The win came on the all-weather — 0 from 4 on turf.

Based on 5 archived runs · updated 5 Nov 2026
KTB at a glance Won on AW, 0 on turf Win at Class 5 OR at career high

Progeny in our archive

Produce record

As a dam, King's Siren (IRE) has 6 produce in the archive, 3 winners — most wins The King's Steed (GB) (9 wins).

The wins came over 7f–2m4f; the highest grade won is Class 2 (Magic Dancer (GB)).

ProduceRunsWinsWin tripsBest grade
The King's Steed (GB)7997f–1m½fClass 5
Magic Dancer (GB)6171m–2m4fClass 2
Royal Dancer (GB)2011m4fClass 6
Ha'penny (GB)20——
Fox King (GB)30——
Sydney Siren (GB)30——
Official rating68At career-high mark
68 68–68

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 74A the best of the last 3 rated runs · Lingfield (AW), 30 Oct 2008 Official rating 68 at the last run, 30 May 2009

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 →

Flat 5 figures · best 74A · median 59
GoingRunsBestMedianSince 5 Nov 2025
Good to Firm256A51.5—
Standard (AW)1———
Good to Soft1———
Good1———
DistanceRunsBestMedianSince 5 Nov 2025
6f – 7f474A64—
1m – 1m1f1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 5 figures from 5 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
King's Best (USA)

Progeny in our archive have won 9.9% of 7,763 runs since Jan 2008 (574 horses).

Weakest over 2m5f – 3m (all codes): 6.8% from 249.

GoingRunsWinsSRvs sireThis horse
Firm701420%+10.1—
Good to Firm1,1541018.8%−1.10 from 2
Good1,8891678.8%−1.10 from 1
Good to Soft95211612.2%+2.30 from 1
Soft1,21612810.5%+0.6—
Heavy427399.1%−0.8—
Standard (AW)2,0532019.8%−0.11 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f156149%−0.9—
6f – 7f1,6051489.2%−0.71 from 4
1m – 1m1f1,70217910.5%+0.60 from 1
1m2f – 1m4f1,90119610.3%+0.4—
1m5f – 2m1,3781299.4%−0.5—
2m1f – 2m4f7187810.9%+1—
2m5f – 3m249176.8%−3.1—
Over 3m54611.1%+1.2—

Flat and jumps together (all codes) · since Jan 2008 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Blue Siren (GB) (Bluebird)

7 siblings in the archive, 1 winner — best of them Siren's Gift (GB) (3 wins).

The wins came over 5f; the highest grade won is Class 2 (Siren's Gift (GB)).

ProduceRunsWinsWin tripsBest grade
Siren's Gift (GB)2935fClass 2
Viking Dancer (GB)160——
Indiana Blues (GB)30——
Speed of Sound (GB)40——
Blue Twister (GB)50——
Bahama Blue (GB)20——
Inspector Blue (GB)10——

Record by conditions

GoingRunsWinsSR£1
Good to Firm 2 0 0% −2.00
Standard (AW) 1 1 100% +7.00
Good to Soft 1 0 0% −1.00
Good 1 0 0% −1.00

ClassRunsWinsSR£1
Class 5 3 1 33% +5.00
Class 4 2 0 0% −2.00

CourseRunsWinsSR£1
Newbury 2 0 0% −2.00
Goodwood 1 0 0% −1.00
Lingfield (AW) 1 1 100% +7.00
Warwick 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 4 1 25% +4.00
1m – 1m1f 1 0 0% −1.00

SeasonRunsWinsSR£1
2009 2 0 0% −2.00
2008 3 1 33% +5.00

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 ORKTB Jockey SP
2009 · 2 runs
30 May 09+23d Newbury Racing UK Sky432 Fillies' Handicap (Str) Class 5 · 7f · Good To Firm · 12 ran 9/12 4½ 8-10 6847A William Buick 7/1
07 May 09+189d Goodwood Dallas Churchill International Fillies' Handicap Class 4 · 1m · Good To Firm · 9 ran 7/9 2 8-4 6856A William Buick 5/1
2008 · 3 runs
30 Oct 08+21d Lingfield (AW) E.B.F. Bet At ladbrokes.com Maiden Fillies' Stakes (Div 1) Class 5 · 7f · Standard · 13 ran 1/13 9-0 6874A William Buick 7/1
09 Oct 08+9d Newbury Vodafone E.B.F. Maiden Stakes (Div 2) Class 4 · 6½f · Good To Soft · 8 ran 4/8 4 8-12 6869A William Buick 12/1
30 Sep 08 Warwick E.B.F. Maiden Fillies' Stakes (Div 1) Class 5 · 7f · Good · 11 ran 4/11 2¼ 9-0 6859A William Buick 11/1

Quick answers

How many races has King's Siren won?
King's Siren (IRE) won 1 of 5 archived starts between 2008 and 2009, a strike rate of 20%. Placed 1 time in total (20% of starts).
Who trained King's Siren?
King's Siren (IRE) was trained by Andrew Balding on the most recent run on record, at Newbury on 30 May 2009.
Who is King's Siren's sire?
King's Siren (IRE) is by King's Best (USA) out of Blue Siren (GB), whose sire is Bluebird.
What is King's Siren's official rating?
The most recent official rating on record is 68, from the run on 30 May 2009. That is also the highest on record.
What is King's Siren's sire's record?
King's Best (USA)'s progeny in our archive have won 9.9% of 7,763 runs since Jan 2008 (574 horses), Flat and jumps together. Weakest over 2m5f – 3m (all codes): 6.8% from 249.
Who are King's Siren's siblings?
Out of Blue Siren (GB), King's Siren (IRE) has 7 other produce in our archive, 1 of them a winner. Most wins: Siren's Gift (GB) (3). Highest grade won: Class 2 (Siren's Gift (GB)). The wins came over 5f. As at Nov 2026.
Has King's Siren produced winners?
As a dam, King's Siren (IRE) has 6 produce in our archive, 3 of them winners. Most wins: The King's Steed (GB) (9). Highest grade won: Class 2 (Magic Dancer (GB)). The wins came over 7f–2m4f. As at Nov 2026.

Record shown from September 2008. 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.