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Horse profile

U S S Constitution (IRE)

6yo gelding · Trainer Ed Walker · Owner P K Siu
by U S Navy Flag (USA) out of Stor Mo Chroi (IRE) (Montjeu)
6 runs · 5 courses · from Aug 2022
As at 1 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
2 wins · Kempton (AW) & Ascot Last run 27 May 2026 · 6th of 14 Last raced off OR 61
KTB Profile

U S S Constitution is a gelding with two wins from six starts, both over 6f – 7f. He won a Class 4 novice at Ascot on good ground in Sep 2022 and a Class 6 handicap at Kempton on standard going in Feb 2026 off an official rating of 55. He has raced three times on turf and three times on all-weather, recording one win on each surface. He finished sixth of 14 at Kempton in May 2026.

Based on 6 archived runs · run-style from 4 commented runs since Feb 2026 · updated 1 Nov 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 87 the best of the last 3 graded (A or B) runs · Lingfield (AW), 28 Feb 2026

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 6 figures · best 89A · median 80
GoingRunsBestMedianSince 1 Nov 2025
Standard (AW)389A873 runs · 89 / 87
Good278A62—
Good to Firm1——1 run · —
DistanceRunsBestMedianSince 1 Nov 2025
6f – 7f489A82.52 runs · 89 / 88
1m – 1m1f282B752 runs · 82 / 75

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 6 figures from 6 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 81A the best of the last 3 rated runs · Doncaster, 25 Apr 2026 Official rating 61 at the last run, 27 May 2026

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 6 figures · best 97A · median 80.5
GoingRunsBestMedianSince 1 Nov 2025
Standard (AW)380A783 runs · 80 / 78
Good297A91—
Good to Firm1——1 run · —
DistanceRunsBestMedianSince 1 Nov 2025
6f – 7f497A82.52 runs · 80 / 75.5
1m – 1m1f281A79.52 runs · 81 / 79.5

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 6 figures from 6 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 from 4 analysed runs since Feb 2026

  • Prominent 2 (50%) · 0 wins
  • Mid-division 2 (50%) · 1 win

Pedigree intelligence

Sire

Progeny in our archive have won 8.4% of 1,405 runs since Apr 2022 (147 horses).

Strongest at trips under 6f (all codes): 12.2% from 181.

GoingRunsWinsSRvs sireThis horse
Firm4125%+16.6—
Good to Firm185158.1%−0.30 from 1
Good3293610.9%+2.51 from 2
Good to Soft14196.4%−2—
Soft193189.3%+0.9—
Heavy4424.5%−3.9—
Standard (AW)509377.3%−1.11 from 3
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1812212.2%+3.8—
6f – 7f598427%−1.42 from 4
1m – 1m1f363298%−0.40 from 2
1m2f – 1m4f210188.6%+0.2—
1m5f – 2m36616.7%+8.3—
2m1f – 2m4f10110%+1.6—
2m5f – 3m600%−8.4—
Over 3m100%−8.4—

Flat and jumps together (all codes) · since Apr 2022 · as at 31 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Stor Mo Chroi (IRE) (Montjeu)

5 siblings in the archive, 4 winners — best of them Fierospeed (IRE) (3 wins).

The wins came over 6f–1m2f; the highest grade won is Class 2 (Janey Mackers (IRE)).

ProduceRunsWinsWin tripsBest grade
Fierospeed (IRE)1431m1½f–1m2fClass 3
San Francisco Bay (IRE)3636f–1m2fClass 6
Janey Mackers (IRE)1021m–1m2fClass 2
Appellation (IRE)711mClass 5
American Treasure (IRE)70——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 3 1 33% +0.50
Good 2 1 50% +3.00
Good to Firm 1 0 0% −1.00

ClassRunsWinsSR£1
Class 6 3 1 33% +0.50
Class 4 2 1 50% +3.00
Class 5 1 0 0% −1.00

CourseRunsWinsSR£1
Kempton (AW) 2 1 50% +1.50
Doncaster 1 0 0% −1.00
Lingfield (AW) 1 0 0% −1.00
Ascot 1 1 100% +4.00
Sandown 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 4 2 50% +4.50
1m – 1m1f 2 0 0% −2.00

JockeyRunsWinsSR£1
Hector Crouch 2 1 50% +1.50
Ashley Lewis 1 0 0% −1.00
Kieran Shoemark 1 0 0% −1.00
Saffie Osborne 1 1 100% +4.00
Richard Kingscote 1 0 0% −1.00

SeasonRunsWinsSR£1
2026 4 1 25% −0.50
2022 2 1 50% +3.00

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
2026 · 4 runs
27 May 26+32d Kempton (AW) Unibet More Extra Place Races Apprentice Handicap Class 5 · 1m · Standard To Slow · 14 ran Held up eagerly close to the pace - pushed along with 2f left and rallied inside the final furlong to go by tired horses - flattened out close home 6/14 ¾ 9-4 6182B78A Ashley Lewis 4/1
25 Apr 26+56d Doncaster Follow AtThe Races On Instagram Handicap (Rnd) Class 6 · 1m · Good To Firm · 12 ran Settled in a forward position - pressed for effort and lost ground over 2f out then drifted left approaching the final furlong - rallied inside to finish 5th 5/12 1¼ 9-7 6268A81A Kieran Shoemark 9/2
28 Feb 26+24d Lingfield (AW) Read Meg Nicholls' Blog At betmgm.co.uk Handicap (Div 2) Class 6 · 7f · Standard · 7 ran Settled around midfield - urged into fourth spot with two furlongs left - kept going but lacked the speed to get involved - finished third 3/7 1¼ 9-6 6287A71A Hector Crouch 10/11F
04 Feb 26+1250d Kempton (AW) Unibet More Extra Place Races Handicap Class 6 · 7f · Standard To Slow · 11 ran Settled off the pace early - angled left and asked for effort over 2f out - gained ground fast approaching the furlong pole - hit the front inside the last - drew clear under hand riding to win comfortably 1/11 9-4 5589A80A Hector Crouch 5/2
2022 · 2 runs
03 Sep 22+13d Ascot Ascot Iron Stand Membership British EBF Novice Stakes (GBB Race) Class 4 · 7f · Good · 9 ran 1/9 9-1 —78A97A Saffie Osborne 4/1
21 Aug 22 Sandown Sky Bet Sunday Series Newcomers' British EBF Maiden Stakes (GBB Race) Class 4 · 7f · Good · 12 ran 3/12 nk 9-7 —46A85A Richard Kingscote 28/1

Quick answers

How many races has U S S Constitution won?
U S S Constitution (IRE) won 2 of 6 archived starts between 2022 and 2026, a strike rate of 33.3%. Placed 3 times in total (50% of starts).
Who trains U S S Constitution?
U S S Constitution (IRE) is trained by Ed Walker, who saddled the horse on its most recent run on 27 May 2026.
Who is U S S Constitution's sire?
U S S Constitution (IRE) is by U S Navy Flag (USA) out of Stor Mo Chroi (IRE), whose sire is Montjeu.
What going does U S S Constitution prefer?
U S S Constitution (IRE) has the best record on standard (aw) 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 U S S Constitution's official rating?
The most recent official rating on record is 61, from the run on 27 May 2026. The highest on record is 62.
What is U S S Constitution's sire's record?
U S Navy Flag (USA)'s progeny in our archive have won 8.4% of 1,405 runs since Apr 2022 (147 horses), Flat and jumps together. Strongest at trips under 6f (all codes): 12.2% from 181.
Who are U S S Constitution's siblings?
Out of Stor Mo Chroi (IRE), U S S Constitution (IRE) has 5 other produce in our archive, 4 of them winners. Most wins: Fierospeed (IRE) (3). Highest grade won: Class 2 (Janey Mackers (IRE)). The wins came over 6f–1m2f. As at Nov 2026.

Record shown from August 2022. 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.