:

William Stone

Four years into his training career, William Stone has built something quietly impressive from a standing start. Since taking out his licence in 2021, he has sent out 40 career winners — and in the last 12 months alone, 10 of those have come from 87 runners, meaning he wins roughly 1 in every 9 races he enters. That is a steady, professional clip for a yard still finding its feet at the top level.Based on TrackLab's AI analysis
Quick Facts
Role
Trainer
Based
West Wickham, Cambs
Record
10 wins from 87 races
Win rate
11.5%
Top jockey
Best course
Newmarket (23.1% from 13 races)
Best going
Good to soft

📊 Key Numbers

A snapshot of this trainer's performance over the last 12 months
87
Races
10
Wins
11.5%
Win rate
avg ~10%
37.9%
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

The partnership with Forglen is the most intriguing thread running through Stone's record. Three wins from 19 races together might not sound like a thunderous ratio, but the fact that one trainer and one horse have kept returning to the well together that many times tells you something about the trust placed in the combination — and the belief that there are more wins to come. It is the kind of long-running partnership that gives a small yard its identity.

Stone's numbers on slightly wet ground are genuinely eye-catching. When conditions are soft underfoot, he wins 4 from 14 — that is 29%, or nearly 1 in every 3 races. For context, his overall rate is 1 in 9. That near-tripling of his success rate in those conditions suggests either that he picks his spots shrewdly when the ground softens, or that he has horses in his care who are built for it. Probably both.

Newmarket is another place where Stone punches above his weight. Three winners from 13 runners at one of the most competitive venues in British racing is a return that many more established trainers would be happy with. Newmarket attracts sharp horses and sharp operators — doing well there, even in small numbers, is a meaningful signal about the quality Stone is capable of producing.

His most regular jockey partnership is with Jack Mitchell, with whom he has landed 2 wins from 19 rides together — matching that same 1-in-9 rate that defines Stone's season overall. It is a working relationship rather than a headline act, but consistency matters, and the two clearly understand each other's game. At four years in, Stone is still a trainer worth watching rather than one to bet the house on — but the foundations look solid, and the trajectory is pointing in the right direction.

📈 Form Trend

How this trainer's win rate has changed month by month
Monthly win rate
2025–2026
0%
Apr
0%
May
0%
Jun
30%
Jul
12.5%
Aug
10%
Sep
8.3%
Oct
40%
Nov
0%
Dec
20%
Jan
0%
Feb
33.3%
Mar

🎯 Where This Trainer Thrives

Performance broken down by ground, class, and track type
🌧 Ground Conditions
Good to soft
Loves
Standard (all-weather)
Good (firm-ish)
Ok
Heavy (very wet)
Good to firm
Avoids
Standard to slow
Avoids
Soft (muddy)
Avoids
🏅 Competition Level
Class 3
Class 4
Ok
Class 5
Class 6
Ok
🏟 Track Shape
Left-handed, wide and galloping
Loves
Left-handed, tight turning
Loves
Right-handed, wide and galloping
Left-handed, undulating
Right-handed, undulating
Right-handed, tight turning
Avoids
Wide and galloping
Avoids

🏇 Jockey Partnerships

The riders they work with most, sorted by rides together
Jack Mitchell First Choice
10.5%
Win rate
2/19
Won / Rode
15.4%
Win rate
2/13
Won / Rode
0%
Win rate
0/10
Won / Rode
28.6%
Win rate
2/7
Won / Rode
0%
Win rate
0/5
Won / Rode
33.3%
Win rate
1/3
Won / Rode
Ashley Lewis
0%
Win rate
0/3
Won / Rode
0%
Win rate
0/3
Won / Rode
0%
Win rate
0/3
Won / Rode
Ryan Kavanagh
50%
Win rate
1/2
Won / Rode
0%
Win rate
0/2
Won / Rode
0%
Win rate
0/2
Won / Rode
0%
Win rate
0/2
Won / Rode
0%
Win rate
0/2
Won / Rode
100%
Win rate
1/1
Won / Rode
0%
Win rate
0/1
Won / Rode
Jack Nicholls
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode
Miss Olive Nicholls
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode

Top Horses

The strongest horses currently associated with this trainer
Form: -61211
Form: 305835
Form: 7-9689
Form: -33863
Form: -07723
Form: 1154-0
Form: 143152
Form: 49988
Form: 775265

🏟 Course Record

Win rate at each course, sorted by number of races
CourseRacesWinsWin rate
Newmarket 13 3 23.1%
Great Yarmouth 12 2 16.7%
Leicester 11 0 0%
chelmsford 11 0 0%
Lingfield Park 9 2 22.2%
Southwell 8 1 12.5%
Kempton Park 7 0 0%
Wolverhampton 4 1 25%
Sandown Park 3 0 0%
Ascot 2 0 0%
Pontefract 2 0 0%
Doncaster 1 1 100%
Nottingham 1 0 0%
Newbury 1 0 0%
Windsor 1 0 0%
Goodwood 1 0 0%

📅 Recent Results

The last 20 results, most recent first
20 Mar
Lingfield Park · 1m1f – 1m2f · Standard
8th
13 Mar
Southwell · 1m6f – 2m · Standard
Won
4 Mar
Southwell · 1m1f – 1m2f · Standard
5th
8 Feb
chelmsford · 1m1f – 1m2f · Standard
3rd
29 Jan
Lingfield Park · 5f – 6½f · Standard
7th
20 Jan
Southwell · 1m6f – 2m · Standard
2nd
17 Jan
Lingfield Park · 1m6f – 2m · Standard
Won
7 Jan
Lingfield Park · 1m6f – 2m · Standard
6th
4 Jan
Southwell · 7f – 1m · Standard
10th
28 Dec
Southwell · 1m1f – 1m2f · Standard
8th
19 Dec
Southwell · 1m6f – 2m · Standard
4th
17 Dec
Kempton Park · 1m1f – 1m2f · Standard_To_Slow
3rd
17 Dec
Lingfield Park · 7f – 1m · Standard
4th
15 Dec
Lingfield Park · 1m1f – 1m2f · Standard
7th
11 Dec
chelmsford · 1m1f – 1m2f · Standard
7th
1 Dec
Kempton Park · 1m1f – 1m2f · Standard_To_Slow
9th
26 Nov
chelmsford · 1m6f – 2m · Standard
8th
20 Nov
Southwell · 1m1f – 1m2f · Standard
2nd
8 Nov
Doncaster · 5f – 6½f · Heavy
Won
6 Nov
chelmsford · 1m3f – 1m4f · Standard
3rd