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Karl Thornton

Karl Thornton has been training for four years, and in that time he has built a quiet but real record — 27 career winners, including one of the biggest prizes available in British racing. That Class 1 victory at Chester in September 2023 stands as the headline moment of his training career so far, and reaching the top level of the sport within just a couple of years of setting up is no small thing. Most trainers wait far longer for a result like that, if it comes at all.Based on TrackLab's AI analysis
Quick Facts
Role
Trainer
Based
Skerries, Co Dublin
Record
4 wins from 81 races
Win rate
4.9%
Top jockey
Best course
Fairyhouse (10% from 20 races)
Best going
Yielding

📊 Key Numbers

A snapshot of this trainer's performance over the last 12 months
81
Races
4
Wins
4.9%
Win rate
avg ~10%
11.1%
Place rate (top 3)
avg ~30%

🔍 Full Analysis

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

This season, though, has been harder going. Four winners from 81 runners works out at roughly 1 in every 20 races, a win rate of 5% that has slipped from 7% last year. For context, the better-performing yards in Britain tend to win somewhere between 1 in 6 and 1 in 10 races, so Thornton is working at the leaner end of the market. That is not unusual for a smaller operation still finding its feet, but it does mean results have been harder to come by than the yard would like.

His most notable partnership with a single horse is Shanroe Act, who has won 2 of the 13 races they have tackled together. Two wins from 13 sounds modest, but a trainer returning again and again to the same horse suggests a belief in what the animal can do on the right day. On soft or muddy ground specifically, Thornton's runners have won 1 from 12 — an 8% win rate — which actually outperforms his overall seasonal figure and hints that wet conditions may quietly suit his string.

The most surprising entry in his record is his partnership with jockey Robbie Colgan — 19 rides together and no wins yet. That is a long run of near-misses, and the fact that Thornton keeps booking Colgan suggests the relationship is about more than results alone, perhaps a shared understanding of how his horses need to be ridden. Sometimes patience in these partnerships does eventually pay off. So far, it hasn't.

Thornton is still a young trainer by the standards of the sport, and one top-level win from four years in business is a genuine marker of potential. The quieter seasons are part of how most training careers are built — steadily, with the occasional big day making it all worthwhile.

📈 Form Trend

How this trainer's win rate has changed month by month
Monthly win rate
2025–2026
0%
May
0%
Jun
0%
Jul
0%
Aug
0%
Sep
0%
Oct
0%
Nov
11.1%
Dec
37.5%
Jan
0%
Feb
0%
Mar
0%
Apr

🎯 Where This Trainer Thrives

Performance broken down by ground, class, and track type
🌧 Ground Conditions
Yielding
Loves
Soft (muddy)
Loves
Standard (all-weather)
Loves
Yielding to soft
Loves
Good to yielding
Good (firm-ish)
Avoids
Heavy (very wet)
Avoids
Soft to heavy
Avoids
🏅 Competition Level
Class 4
🏟 Track Shape
Right-handed, wide and galloping
Left-handed, wide and galloping
Ok
Left-handed, tight
Right-handed, undulating
Right-handed, tight
Right-handed, tight turning
Avoids
Left-handed, tight turning
Avoids

🏇 Jockey Partnerships

The riders they work with most, sorted by rides together
Robbie Colgan First Choice
0%
Win rate
0/19
Won / Rode
0%
Win rate
0/15
Won / Rode
42.9%
Win rate
3/7
Won / Rode
Miss E J Sweeney
0%
Win rate
0/7
Won / Rode
16.7%
Win rate
1/6
Won / Rode
0%
Win rate
0/4
Won / Rode
0%
Win rate
0/3
Won / Rode
0%
Win rate
0/3
Won / Rode
0%
Win rate
0/3
Won / Rode
0%
Win rate
0/2
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
0%
Win rate
0/1
Won / Rode
Mr B Barry
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode
Niall Moore
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode
Hugh Horgan
0%
Win rate
0/1
Won / Rode

Top Horses

The strongest horses currently associated with this trainer
Form: /7P11P
Form: 09063P
Form: 9-9P8P
Form: -768PP
Form: -08072
Form: 556780
Form: 50-690
Form: 5-768P
Form: 15U-00
Form: -9U94P

🏟 Course Record

Win rate at each course, sorted by number of races
CourseRacesWinsWin rate
Fairyhouse 20 2 10%
Down Royal 16 1 6.2%
Dundalk 11 1 9.1%
Navan 5 0 0%
Cork 4 0 0%
Limerick 4 0 0%
Leopardstown 4 0 0%
Naas 3 0 0%
Killarney 2 0 0%
Chester 2 0 0%
Punchestown 2 0 0%
Clonmel 2 0 0%
Downpatrick 1 0 0%
Galway 1 0 0%
Roscommon 1 0 0%
Gowran Park 1 0 0%
Listowel 1 0 0%
Ballinrobe 1 0 0%

📅 Recent Results

The last 20 results, most recent first
4 Apr
Fairyhouse · Long Distance (2m+) · Yielding_To_Soft
31 Mar
Limerick · Long Distance (2m+) · Soft
2nd
29 Mar
Downpatrick · Long Distance (2m+) · Yielding_To_Soft
13th
17 Mar
Down Royal · Long Distance (2m+) · Yielding
12 Mar
Limerick · Long Distance (2m+) · Soft_To_Heavy
5th
3 Mar
Leopardstown · Long Distance (2m+) · Yielding
4th
2 Mar
Leopardstown · Long Distance (2m+) · Yielding_To_Soft
21 Feb
Fairyhouse · Long Distance (2m+) · Heavy
21 Feb
Fairyhouse · Long Distance (2m+) · Heavy
21 Feb
Fairyhouse · Long Distance (2m+) · Heavy
8 Feb
Navan · Long Distance (2m+) · Heavy
8 Feb
Navan · Long Distance (2m+) · Heavy
8 Feb
Navan · Long Distance (2m+) · Heavy
3 Feb
Fairyhouse · Long Distance (2m+) · Heavy
8th
20 Jan
Down Royal · Long Distance (2m+) · Yielding_To_Soft
Won
20 Jan
Down Royal · Long Distance (2m+) · Yielding_To_Soft
15 Jan
Fairyhouse · Long Distance (2m+) · Soft
Won
15 Jan
Fairyhouse · Long Distance (2m+) · Soft
3rd
15 Jan
Fairyhouse · Long Distance (2m+) · Soft
14 Jan
Fairyhouse · Long Distance (2m+) · Yielding
4th