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Horse profile

Declaration Of War (USA)

4yo colt (at last run, Aug 2013) · Last trainer A P O'Brien · Last owner Mrs J Magnier M Tabor D Smith J Allen Llc
by War Front (USA) out of Tempo West (USA) (Rahy)
12 runs · 10 courses · from Nov 2011
As at 4 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 21 Aug 2013 — 4,823 days ago. Our archive can't say whether the horse is still in training.
Last run Aug 2013 · 1st of 6 Won last time out 7 wins · 7 courses Last raced off OR 120
KTB Profile

Declaration Of War (USA) is 7 from 12 in our archive, including 2 wins at Group 1 level. Won last time out in the Juddmonte International Stakes at York — a second Group 1 win in our archive.

Based on 12 archived runs · updated 4 Nov 2026

Progeny in our archive

Progeny record

As a sire, Declaration Of War (USA)’s progeny in our archive have won 12.3% of 1,540 runs since Apr 2017 (123 horses).

Weakest on good to soft going: 6% from 151.

GoingRunsWinsSRvs sire
Firm13430.8%+18.5
Good to Firm2393213.4%+1.1
Good3474011.5%−0.8
Good to Soft15196%−6.3
Soft1881910.1%−2.2
Heavy53713.2%+0.9
Standard (AW)5497914.4%+2.1
Distance (all codes)RunsWinsSRvs sire
Under 6f14321.4%+9.1
6f – 7f3884912.6%+0.3
1m – 1m1f3354212.5%+0.2
1m2f – 1m4f4075212.8%+0.5
1m5f – 2m2483212.9%+0.6
2m1f – 2m4f9177.7%−4.6
2m5f – 3m49510.2%−2.1
Over 3m800%−12.3

Flat and jumps together (all codes) · since Apr 2017 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Official rating120↓ 1lb off peak
120 102–121

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 113B the best of the last 3 rated runs · York, 21 Aug 2013 Official rating 120 at the last run, 21 Aug 2013

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 9 figures · best 113B · median 106
GoingRunsBestMedianSince 4 Nov 2025
Good to Firm3113B108—
Good2110A100.5—
Good to Soft1———
Soft1———
Standard (AW)1———
Heavy1———
DistanceRunsBestMedianSince 4 Nov 2025
1m – 1m1f5112A106—
1m2f – 1m4f4113B102—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 9 figures from 9 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
War Front (USA)

Progeny in our archive have won 15.7% of 2,498 runs since Jul 2010 (297 horses).

Strongest on standard (aw) going: 18.8% from 924. Weakest on good going: 10.9% from 533. Strongest over 6f – 7f (all codes): 19.3% from 1,010.

GoingRunsWinsSRvs sireThis horse
Firm14321.4%+5.7—
Good to Firm4758317.5%+1.81 from 3
Good5335810.9%−4.81 from 3
Good to Soft2283716.2%+0.50 from 1
Soft2813211.4%−4.31 from 1
Heavy43511.6%−4.11 from 1
Standard (AW)92417418.8%+3.13 from 3
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1713017.5%+1.8—
6f – 7f1,01019519.3%+3.61 from 1
1m – 1m1f81510512.9%−2.83 from 7
1m2f – 1m4f3815614.7%−13 from 4
1m5f – 2m9455.3%−10.4—
2m1f – 2m4f2414.2%−11.5—
2m5f – 3m300%−15.7—

Flat and jumps together (all codes) · since Jul 2010 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Tempo West (USA) (Rahy)

5 siblings in the archive, 4 winners — best of them War Power (USA) (3 wins).

The wins came over 7½f–1m2f; the highest grade won is Listed (Vertiformer (USA)).

ProduceRunsWinsWin tripsBest grade
War Power (USA)637½f–1m1½f—
Vertiformer (USA)631m1f–1m2fListed
War Pact (USA)527½f–1m—
War Correspondent (USA)217½f—
Brides Folly (USA)10——

Record by conditions

GoingRunsWinsSR£1
Good to Firm 3 1 33% +5.00
Good 3 1 33% +5.50
Standard (AW) 3 3 100% +2.20
Good to Soft 1 0 0% −1.00
Soft 1 1 100% +1.50
Heavy 1 1 100% +1.10

ClassRunsWinsSR£1
Class 1 5 2 40% +11.50

CourseRunsWinsSR£1
Deauville (FR) 2 1 50% −0.60
Curragh 2 1 50% +0.10
York 1 1 100% +7.00
Goodwood 1 0 0% −1.00
Sandown 1 0 0% −1.00
Ascot 1 1 100% +7.50
Newbury 1 0 0% −1.00
Leopardstown 1 1 100% +1.50
Dundalk (AW) 1 1 100% +1.10
Pornichet-La Baule 1 1 100% +0.70

DistanceRunsWinsSR£1
1m – 1m1f 7 3 43% +5.70
1m2f – 1m4f 4 3 75% +8.20
6f – 7f 1 1 100% +0.40

JockeyRunsWinsSR£1
Joseph O'Brien 9 5 56% +14.20
Christophe Soumillon 2 2 100% +1.10
Ryan Moore 1 0 0% −1.00

SeasonRunsWinsSR£1
2013 7 3 43% +12.00
2012 3 2 67% +1.20
2011 2 2 100% +1.10

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
2013 · 7 runs
21 Aug 13+10d York Juddmonte International Stakes (Group 1) (British Champions Series) Class 1 · 1m2½f · Good To Firm · 6 ran 1/6 9-5 120113B Joseph O'Brien 7/1
11 Aug 13+11d Deauville (FR) Prix du Haras de Fresnay-le-Buffard - Jacques Le Marois (3yo+) (Turf) 1m · Good · 13 ran 4/13 hd 9-4 —— Ryan Moore 11/1
31 Jul 13+25d Goodwood Qipco Sussex Stakes (British Champions Series) (Group 1) Class 1 · 1m · Good To Soft · 7 ran 3/7 2½ 9-7 121112A Joseph O'Brien 7/2
06 Jul 13+18d Sandown Coral-Eclipse (British Champions Series) (Group 1) Class 1 · 1m2f · Good To Firm · 7 ran 2/7 2 9-7 118108A Joseph O'Brien 4/1
18 Jun 13+31d Ascot Queen Anne Stakes (British Champions Series) (Group 1) (Str) Class 1 · 1m · Good · 13 ran 1/13 9-0 112110A Joseph O'Brien 15/2
18 May 13+34d Newbury JLT Lockinge Stakes (British Champions Series) (Group 1) (Str) Class 1 · 1m · Good To Firm · 12 ran 5/12 2½ 9-0 11295A Joseph O'Brien 5/4F
14 Apr 13+191d Leopardstown Heritage Stakes (Listed) 1m · Soft · 5 ran 1/5 9-10 112106B Joseph O'Brien 6/4
2012 · 3 runs
05 Oct 12+5d Dundalk (AW) Diamond Stakes (Group 3) 1m2½f · Standard · 12 ran 1/12 9-3 10594A Joseph O'Brien 11/10F
30 Sep 12+21d Curragh Moyglare Stud Lifetime Achievement In Racing Trophy 1m2f · Heavy · 8 ran 1/8 9-2 10596A Joseph O'Brien 11/10F
09 Sep 12+268d Curragh Refuse To Bend Solonaway Stakes (Group 3) 1m · Good · 8 ran 4/8 ½ 9-2 10291A Joseph O'Brien 5/1
2011 · 2 runs
16 Dec 11+36d Deauville (FR) Prix Habitat (Conditions) (2yo Colts & Geldings) (Fibresand) 7½f · Standard · 13 ran 1/13 8-13 —— Christophe Soumillon 2/5F
10 Nov 11 Pornichet-La Baule Prix des Espoirs (Maiden) (All-Weather) 1m½f · Standard · 4 ran 1/4 9-2 —— Christophe Soumillon 7/10F

Quick answers

How many races has Declaration Of War won?
Declaration Of War (USA) won 7 of 12 archived starts between 2011 and 2013, a strike rate of 58.3%. Placed 8 times in total (66.7% of starts).
Who trained Declaration Of War?
Declaration Of War (USA) was trained by A P O'Brien on the most recent run on record, at York on 21 August 2013.
Who is Declaration Of War's sire?
Declaration Of War (USA) is by War Front (USA) out of Tempo West (USA), whose sire is Rahy.
What going does Declaration Of War prefer?
Declaration Of War (USA) has the best record on standard (aw) going: 3 wins from 3 starts (100%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Declaration Of War's official rating?
The most recent official rating on record is 120, from the run on 21 August 2013. The highest on record is 121.
What is Declaration Of War's sire's record?
War Front (USA)'s progeny in our archive have won 15.7% of 2,498 runs since Jul 2010 (297 horses), Flat and jumps together. Strongest on standard (aw) going: 18.8% from 924. Weakest on good going: 10.9% from 533. Strongest over 6f – 7f (all codes): 19.3% from 1,010.
Who are Declaration Of War's siblings?
Out of Tempo West (USA), Declaration Of War (USA) has 5 other produce in our archive, 4 of them winners. Most wins: War Power (USA) (3). Highest grade won: Listed (Vertiformer (USA)). The wins came over 7½f–1m2f. As at Nov 2026.
Has Declaration Of War sired winners?
As a sire, Declaration Of War (USA)'s progeny in our archive have won 12.3% of 1,540 runs since Apr 2017 (123 horses), Flat and jumps together. Weakest on good to soft going: 6% from 151.

Record shown from November 2011. 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.