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U S S Constitution

At six years old, U S S Constitution has built a career that tells a familiar story on the British racing circuit — not a superstar, but a horse that knows how to find the line when the conditions are right. Two wins from 25 races is a win rate of around 1 in every 12 or 13 outings, which is modest, but the four placed finishes on top of that suggest a horse that competes honestly and regularly runs better than its finishing position might imply.Based on TrackLab's AI analysis
Quick Facts
Age
6 years old
Sex
Gelding
Colour
Bay
Father
U S Navy Flag
Mother
Stor Mo Chroi
Trainer
Owner
P K Siu
Rating
61

📊 Key Numbers

Career statistics for this horse
25
Career races
2
Wins
8%
Win rate
avg ~10%
16%
Place rate (top 3)
avg ~30%
1 days
Since last race

🔍 Full Analysis

TrackLab's AI-generated assessment based on career data and recent form
TrackLab's Detailed Breakdown
Auto-Generated

The key to understanding this horse lies in the distance. Over seven furlongs to a mile, U S S Constitution transforms into something considerably more interesting — two wins from just seven races at those trips works out at 29%, meaning it wins nearly 1 in every 3 races when the race is run at a distance that suits. That is a striking number, and it tells you that whoever is placing this horse in races at the right trip is getting rewarded for their homework.

The most recent win came at Kempton Park in February 2026, and the current form is encouraging — a victory and a third place among the last few runs, with a race just yesterday keeping this horse firmly in the thick of things. That level of activity, and that level of consistency, points to a horse in reasonable nick. The first career win came at Ascot back in September 2022, which is a proper track, and demonstrates this is not a horse that only performs at minor venues.

Ed Walker trains out of Upper Lambourn in Berkshire, and his yard has sent out 80 winners already this season — that is the output of a stable operating at a high level, and it means U S S Constitution is in professional, confident hands. Walker's team tends to place their horses thoughtfully, and the fact that this horse has two wins from three races at the lower tier of competition — winning 1 in every 3 at that level — suggests they have found a grade where it can be genuinely competitive. For a horse with modest overall numbers, that kind of targeted placing is exactly how you keep a career ticking over and give a horse its moment in the sun.

Strengths & Risks

What the data says works for and against this horse
✓ What works in their favour
Well suited by 7f – 1m distances: 29% win rate
⚠ What to watch out for
Poor record on good_to_firm ground: 0 wins from 4 starts
Poor record on standard ground: 0 wins from 3 starts
Yet to win at happy_valley in 14 attempts
Struggles on Galloping tracks: 0 wins from 18 starts

🎯 Where This Horse Thrives

Performance broken down by ground, distance, class, and track type
🌧 Ground Conditions
Good (firm-ish)
Ok
Standard to slow (all-weather)
Unknown
Good to yielding (mild give)
Unknown
Good to firm (drying out)
Avoids
Standard (all-weather)
Avoids
📏 Race Distance
7F – 1M
Loves
1M3F – 1M4F
Unknown
1M1F – 1M2F
Avoids
🏅 Competition Level
Class 4 (standard)
Unknown
Class 6 (grassroots)
Loves
🏟 Track Shape
Right-handed, long straights
Loves
Left-handed, tight turns
Unknown
Left-handed, long straights
Unknown
Long straights
Avoids

📅 Recent Runs

The last 10 races, most recent first
27 May
6th
Kempton Park
1m1f – 1m2f · Standard_To_Slow · 14 runners
25 Apr
5th
Doncaster
7f – 1m · Good_To_Firm · 13 runners
28 Feb
3rd
Lingfield Park
7f – 1m · Standard · 8 runners
28 Feb
DNF
Lingfield Park
7f – 1m · Standard · 26 runners
4 Feb
🏆 Won
Kempton Park
7f – 1m · Standard_To_Slow · 11 runners
1 Jul
10th
sha_tin
1m1f – 1m2f · Good · 16 runners
4 Jun
7th
happy_valley
1m3f – 1m4f · Good · 13 runners
21 May
DNF
happy_valley
1m1f – 1m2f · Good · 14 runners
30 Apr
8th
happy_valley
1m1f – 1m2f · Good_To_Firm · 14 runners
23 Apr
DNF
happy_valley
1m1f – 1m2f · Good · 14 runners

🏇 Jockey Partnerships

Every jockey who has ridden this horse, sorted by rides together
0%
Win rate
0/4
Won / Rode
Brenton Avdulla
0%
Win rate
0/3
Won / Rode
50%
Win rate
1/2
Won / Rode
Antoine Hamelin
0%
Win rate
0/2
Won / Rode
Ben E Thompson
0%
Win rate
0/2
Won / Rode
Alexis Badel
0%
Win rate
0/2
Won / Rode
100%
Win rate
1/1
Won / Rode
H T Mo
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode

🏟 Track Record

Win rate at each course this horse has visited
CourseRacesResultsLast visitedWin rate
happy_valley 14 14 other 4 Jun 0%
sha_tin 4 4 other 1 Jul 0%
Kempton Park
Galloping
2 1 win, 1 other 27 May 50%
Lingfield Park
Sharp
2 1 third, 1 other 28 Feb 0%
Ascot
Galloping
1 1 win 3 Sep 100%
Doncaster
Galloping
1 1 other 25 Apr 0%
Sandown Park
Galloping
1 1 third 21 Aug 0%