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Horse profile

Under Siege (IRE)

5yo gelding (at last run, Apr 2017) · Last trainer Stuart Williams · Last owner Happy Valley Racing Breeding Limited
by Invincible Spirit (IRE) out of Interpose (GB) (Indian Ridge)
18 runs · 9 courses · from May 2015
As at 22 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 24 Apr 2017 — 3,468 days ago. Our archive can't say whether the horse is still in training.
Last run Apr 2017 · 7th of 12 4 wins · Newmarket, Chelmsford City (AW) & Hamilton Last raced off OR 83
KTB Profile

Under Siege (IRE) is 4 from 18. Hasn't won since Sep 2016. All 4 wins have come over 6f – 7f. Last raced off a career-high mark of 83.

Based on 18 archived runs · updated 22 Oct 2026
KTB at a glance OR at career high
Official rating83At career-high mark
83 68–83

KTB Speed and Rating

KTB Speed

Best recent Speed 111 the best of the last 3 graded (A or B) runs · Kempton (AW), 22 Mar 2017

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 →

Flat 5 figures · best 121B · median 111
GoingRunsBestMedianSince 22 Oct 2025
Standard (AW)3121B111—
Good to Firm1———
Good1———
DistanceRunsBestMedianSince 22 Oct 2025
6f – 7f5121B111—

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 5 figures from 5 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 86A the best of the last 3 rated runs · Kempton (AW), 22 Feb 2017 Official rating 83 at the last run, 24 Apr 2017

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 18 figures · best 99A · median 81
GoingRunsBestMedianSince 22 Oct 2025
Standard (AW)989A82—
Good399A87—
Good to Firm276A68—
Soft260A53—
Heavy1———
Good to Soft1———
DistanceRunsBestMedianSince 22 Oct 2025
6f – 7f1899A81—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 18 figures from 18 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
Invincible Spirit (IRE)

Progeny in our archive have won 11.9% of 20,818 runs since Jan 2008 (1,573 horses).

Strongest on firm going: 16.1% from 161. Weakest over 1m5f – 2m (all codes): 7.8% from 843.

GoingRunsWinsSRvs sireThis horse
Firm1612616.1%+4.2—
Good to Firm3,58146312.9%+10 from 2
Good4,52948710.8%−1.11 from 3
Good to Soft2,13225411.9%01 from 1
Soft2,75830311%−0.90 from 2
Heavy790769.6%−2.30 from 1
Standard (AW)6,86686612.6%+0.72 from 9
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f3,04939913.1%+1.2—
6f – 7f9,8291,17812%+0.14 from 18
1m – 1m1f4,50254212%+0.1—
1m2f – 1m4f2,13924911.6%−0.3—
1m5f – 2m843667.8%−4.1—
2m1f – 2m4f360339.2%−2.7—
2m5f – 3m8989%−2.9—
Over 3m7114.3%+2.4—

Flat and jumps together (all codes) · since Jan 2008 · as at 22 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Interpose (GB) (Indian Ridge)

7 siblings in the archive, 3 winners — best of them Go Figure (IRE) (3 wins).

The wins came over 6f–2m½f; the highest grade won is Class 4 (Go Figure (IRE)).

ProduceRunsWinsWin tripsBest grade
Go Figure (IRE)2137f–2m½fClass 4
Rinterval (IRE)916fClass 4
Interdiamonds (GB)1411m2fClass 4
Silk Slippers (GB)110——
Sunrise Song (IRE)120——
Perfect Pose (IRE)40——
Betwixt (IRE)10——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 9 2 22% +12.00
Good 3 1 33% +7.00
Good to Firm 2 0 0% −2.00
Soft 2 0 0% −2.00
Heavy 1 0 0% −1.00
Good to Soft 1 1 100% +11.00

ClassRunsWinsSR£1
Class 4 9 2 22% +14.00
Class 5 5 1 20% +7.00
Class 3 4 1 25% +4.00

CourseRunsWinsSR£1
Kempton (AW) 5 0 0% −5.00
Chelmsford City (AW) 4 2 50% +17.00
Epsom Downs 2 0 0% −2.00
Brighton 2 0 0% −2.00
Windsor 1 0 0% −1.00
Newmarket 1 1 100% +9.00
Hamilton 1 1 100% +11.00
Pontefract 1 0 0% −1.00
Ripon 1 0 0% −1.00

JockeyRunsWinsSR£1
Aaron Jones 4 0 0% −4.00
Pat Cosgrave 3 1 33% +7.00
Sophie Killoran 3 1 33% +10.00
Oisin Murphy 2 0 0% −2.00
Graham Lee 2 0 0% −2.00
Pat Dobbs 1 1 100% +7.00
Frederik Tylicki 1 0 0% −1.00
Martin Harley 1 0 0% −1.00
Shane Gray 1 1 100% +11.00

HeadgearRunsWinsSR£1
None 9 2 22% +16.00
Tongue tie 8 2 25% +10.00
Cheekpieces 1 0 0% −1.00

SeasonRunsWinsSR£1
2017 4 0 0% −4.00
2016 8 2 25% +10.00
2015 6 2 33% +19.00

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 ORSpdKTB Jockey SP
24 Apr 17+33d Windsor Sky Bet Windsor Sprint Series Handicap (Qualifier) Class 3 · 6f · Good To Firm · 12 ran 7/12 nk 8-13 8398A76A Aaron Jones 8/1
22 Mar 17+28d Kempton (AW) 32Red.com Handicap Class 4 · 6f · Standard · 9 ran 3/9 nk 9-3 83111A82A Aaron Jones 7/2
22 Feb 17+19d Kempton (AW) 32red.com Handicap Class 4 · 6f · Standard · 10 ran 2/10 ¾ 9-5 82111B86A Oisin Murphy 7/1
03 Feb 17+139d Kempton (AW) 32red.com Handicap Class 4 · 6f · Standard · 11 ran 7/11 1¾ 9-5 82121B79A Oisin Murphy 7/2J
17 Sep 16+18d Newmarket Aspall Handicap Class 4 · 6f · Good · 12 ran 1/12 9-2 7994A99A Pat Cosgrave 9/1
30 Aug 16+25d Epsom Downs Terry Mills & John Akehurst Handicap Class 3 · 6f · Good · 11 ran 4/11 2 8-13 80—77A Aaron Jones 10/1
05 Aug 16+17d Brighton Harry Bloom Memorial 'Brighton Bullet' Handicap Class 4 · 6f · Good · 8 ran 4/8 ½ 9-9 80—87A Aaron Jones 7/1
19 Jul 16+13d Chelmsford City (AW) Totequadpot Handicap Class 3 · 6f · Standard · 8 ran 1/8 8-13 76—87A Pat Dobbs 7/1
06 Jul 16+63d Kempton (AW) 32red Casino Handicap Class 4 · 6f · Standard · 11 ran 4/11 nse 9-9 77—89A Frederik Tylicki 9/2
04 May 16+42d Chelmsford City (AW) Scoop6soccer The 1 Million Football Bet Handicap Class 3 · 6f · Standard · 9 ran 6/9 4 8-10 78—63A Martin Harley 10/3F
23 Mar 16+12d Kempton (AW) 32Red.com Handicap Class 4 · 6f · Standard · 11 ran 5/11 ¾ 8-8 79—80A Sophie Killoran 4/1F
11 Mar 16+153d Chelmsford City (AW) Totetrifecta Handicap Class 4 · 6f · Standard · 13 ran 2/13 ½ 8-11 77—82A Sophie Killoran 7/2J
10 Oct 15+40d Chelmsford City (AW) Like totepool On Facebook Apprentice Handicap Class 4 · 6f · Standard · 11 ran 1/11 8-4 68—87A Sophie Killoran 12/1
31 Aug 15+7d Epsom Downs Family Friendly Gatwick Airport Handicap (Jockey Club Grassroots Flat Sprint Series Qualifier) Class 5 · 6f · Heavy · 4 ran 3/4 2½ 9-2 70—74B Pat Cosgrave 4/1
24 Aug 15+81d Brighton Mears Group PLC Handicap Class 5 · 7f · Soft · 7 ran 4/7 4½ 9-5 70—60A Pat Cosgrave 9/2
04 Jun 15+13d Hamilton Watt Fences And Watt Plastics Open Maiden Stakes Class 5 · 6f · Good To Soft · 9 ran 1/9 9-2 ——86A Shane Gray 11/1
22 May 15+14d Pontefract David Simons 40th Birthday Over The Hill Maiden Stakes Class 5 · 6f · Good To Firm · 7 ran 5/7 nk 9-5 ——60A Graham Lee 16/1
08 May 15 Ripon Sis Delivering Content For Digital Platforms Maiden Stakes Class 5 · 6f · Soft · 10 ran 9/10 16 9-5 ——46C Graham Lee 14/1

Quick answers

How many races has Under Siege (IRE) won?
Under Siege (IRE) won 4 of 18 archived starts between 2015 and 2017, a strike rate of 22.2%. Placed 7 times in total (38.9% of starts).
Who trained Under Siege (IRE)?
Under Siege (IRE) was trained by Stuart Williams on the most recent run on record, at Windsor on 24 April 2017.
Who is Under Siege (IRE)'s sire?
Under Siege (IRE) is by Invincible Spirit (IRE) out of Interpose (GB), whose sire is Indian Ridge.
What going does Under Siege (IRE) prefer?
Under Siege (IRE) has the best record on good going: 1 win from 3 starts (33.3%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Under Siege (IRE)'s official rating?
The most recent official rating on record is 83, from the run on 24 April 2017. That is also the highest on record.
What is Under Siege (IRE)'s sire's record?
Invincible Spirit (IRE)'s progeny in our archive have won 11.9% of 20,818 runs since Jan 2008 (1,573 horses), Flat and jumps together. Strongest on firm going: 16.1% from 161. Weakest over 1m5f – 2m (all codes): 7.8% from 843.
Who are Under Siege (IRE)'s siblings?
Out of Interpose (GB), Under Siege (IRE) has 7 other produce in our archive, 3 of them winners. Most wins: Go Figure (IRE) (3). Highest grade won: Class 4 (Go Figure (IRE)). The wins came over 6f–2m½f. As at Oct 2026.

Record shown from May 2015. 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.