Skip to content
Trainer profile

William Muir & Chris Grassick

1,355 runners in the lifetime window · 135 individual horses
As at 13 Nov 2026 · KTB archive: 2005–present, updated daily
Non-runners: 7.5% of 279 declared in the last 365 days, counting all recorded withdrawals, including reserves. For context, a typical day across all racing ends with about 6.5% withdrawn (middle half 5.2–8.0% over 364 racing days). As at 13 Nov 2026.
Last runner 8 days ago 100% of runners on the flat
Last 5 seasons Lifetime (2021→)
from 1 Jan 2008 — the aggregate floor: every horse in the window has a complete captured career behind it
153–1,355
Wins / Runs
11.3%
Strike rate
n=1,355
396 (29%)
Placed
1.01
Fair A/E
n=1,349 · 0.87 incl. margin
−271.50
£1 level stake
n=1,355 at SP · −20.0%
£3.26m
Prize money (window)
Strike by season
8.3%
KTB Yard Profile

Sends out around 70 runners a season, almost all on the flat, winning with 11% of them — level with the margin-free market read across the lifetime window (Fair A/E 1.01). In Group and Graded company the record reads 13% (31 runs).

Deterministic profile computed from 1,355 archived runs (lifetime window) · updated 13 Nov 2026
KTB at a glance Fresh horses: 12.5% 33.3% when favourite Lewis Edmunds: 10.8% from 609 Sends off the favourite in 9% of races
The read

The record is strongest at Nottingham (20.5%, n=44), clear of the yard's 11.3% baseline. It is weakest at Newbury (4.9% over 103 runners) — the widest gap in the record. New recruits from other stables on their first run struggle at 3.2% (n=31, Fair A/E 0.30). Horses returning fresh after 61+ days are the standout value angle: 12.5% strikes only just above baseline, but Fair A/E 1.35 and +33.25 to a £1 stake over 152 runners — a record the market has persistently underpriced. Lewis Edmunds rides 45% of the entries and matches the yard's average almost exactly (10.8%, A/E 1.03) — the market has that partnership priced right. The yard also reads well off a 0-7-day break (28.6%, n=49) and over 1m5f – 2m (18.2%, n=88). 4 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the King George VI And Queen Elizabeth Qipco Stakes at Ascot (Jul 2022, £708,875). The stable star of the record: Caramay (GB) — 8 wins from 39 runs for the yard.

Written from the figures on this page — every claim carries its sample. Descriptive, not a tip.

Yard patterns

the angles behind the record · vs 11.3% baseline
Fresh · 61+ days off
12.5%+1.2
n=152 · A/E 1.35 · £1 +33.25
New recruits · first run for the yard
3.2%−8.1
n=31 · A/E 0.30 · £1 −27.00
Debutants · first career start
5.8%−5.5
n=104 · A/E 1.31 · £1 −16.75
First-time headgear · true-first definition
5.9%−5.4
n=68 · A/E 0.73 · £1 −42.50
Headgear returns · back on after a bare run
10.5%−0.8
n=19 · A/E 1.32 · £1 −3.00
When favourite
33.3%
n=123 · A/E 1.08 · £1 −3.00
Claiming riders · a claimer in the saddle
11.3%+0.0
n=151 · A/E 0.89 · £1 −81.27
Group / Graded races · pattern & listed
12.9%+1.6
n=31 · A/E 1.32 · £1 +4.00

Each tile is the record in that situation vs the 11.3% baseline — descriptive splits with the sample always shown, for you to weigh. Tiles under 30 runs render muted. Headgear figures use the true-first definition (first gear appearance in the captured career); returns are gear back on after a bare run. Claiming riders are runs where the booked rider carried a weight claim. Group / Graded covers pattern and listed races. The same beliefs, tested across every yard and every GB and Irish race since 2005: Racing myths.

Notable angles

vs their own baseline
Off a 0-7-day break 28.6% vs 11.3% · n=49
At Nottingham 20.5% vs 11.3% · n=44
Over 1m5f – 2m 18.2% vs 11.3% · n=88
With P J McDonald 18.9% vs 11.3% · n=53
On last-time-out winners 17.3% vs 11.3% · n=150
At Newbury 4.9% vs 11.3% · n=103
Descriptive splits ranked by divergence × sample — insight, not instruction. Every angle carries its N; nothing under 30 runs qualifies. Rows within 2pts of the baseline appear only when the market-relative read (Fair A/E) diverges, and show it.

Record by conditions

same window as header

Race type

TypeRWSR£1
Flat 1,351 153 11.3% −267.50
Hurdle 4 0 0% −4.00

Going

GoingRWSR£1
Standard (AW) 513 66 12.9% −70.76
Good 300 24 8% −85.97
Good to Firm 290 34 11.7% −61.78
Good to Soft 115 17 14.8% +8.66
Soft 106 11 10.4% −36.65
Heavy 25 1 4% −19.00
Firm 6 0 0% −6.00

Courses

CourseRWSR£1
Kempton (AW) 161 17 10.6% −17.53
Wolverhampton (AW) 160 25 15.6% −31.61
Newbury 103 5 4.9% −28.50
Southwell (AW) 86 11 12.8% −6.05
Ffos Las 73 11 15.1% −11.14
Windsor 72 5 6.9% −38.50
Ascot 65 9 13.8% +14.45
Sandown 62 7 11.3% +10.00
Lingfield (AW) 58 6 10.3% −12.50
Salisbury 48 4 8.3% −5.50
Leicester 45 4 8.9% −27.08
Nottingham 44 9 20.5% +24.25
Bath 41 3 7.3% −15.50
Goodwood 41 3 7.3% −16.75
Newmarket 31 5 16.1% −0.67

Class

ClassRWSR£1
Class 5 406 48 11.8% −76.45
Class 4 333 35 10.5% −56.93
Class 6 274 39 14.2% −38.39
Class 3 164 18 11% −53.23
Class 2 147 9 6.1% −50.50
Class 1 31 4 12.9% +4.00

Market position

In the bettingRWSRA/E£1
Favourite 141 45 31.9% 1.07 −4.17
2nd–3rd fav 333 54 16.2% 0.94 −62.83
4th–6th fav 481 44 9.1% 1.13 −1.50
7th+ in betting 400 10 2.5% 0.78 −203.00
Fair A/E per band is the tell: near 1.00 the market had it priced right; well above, the wins came where the market didn't expect them.

Rows below n=30 are shown faded — a small sample is a fact, not a trend. Every figure carries its N.

Horses trained

same window as header · most-raced first
HorseRWPlLast ran
Mitrosonfire (GB)from William Muir 43 6 15 31 Jan 25
Ebt's Guard (GB) 41 4 22 28 Oct 26
Caramay (GB) 39 8 13 10 Jun 26
Starproof (IRE) 29 4 9 1 Dec 25
Hammy End (IRE)from William Muir · then Joe Ponting 28 2 11 17 Mar 23
Top Secret (GB)from Clive Cox 27 5 11 6 Nov 24
Stockpyle (GB)then Sam England 27 4 9 21 Oct 24
Snapcracklepop (GB)then Gemma Tutty 26 3 9 16 Sep 24
Newyorkstateofmind (GB)from William Muir · then Ruth Carr 26 3 6 1 Oct 22
Mrs Twig (IRE) 23 4 5 29 Oct 25
Morte Point (GB) 21 5 7 13 Oct 26
So Sleepy (GB) 20 2 7 4 Sep 24
Showing the 60 most-raced of the 135 horses sent out in this window — each ran at least 9 times. Horses with fewer runs aren't listed; search finds any horse since 2005. Runs, wins and places only: a strike rate or a return on a handful of runs is noise, so none is quoted per horse — each horse's full record is on its own page.
Where they came from · where they went next

Of the 60 horses listed, 15 arrived from another yard in our archive, most often from William Muir (11); 45 had their first archived run for this yard.

15 have since run for another yard; 45 have no later run for another yard in our archive.

Read from each listed horse's whole archived career (2005 onwards), not only this window, and counted over the horses listed above, not the whole string. “First archived run” means our archive holds nothing earlier, not that the horse was unraced. A horse with no later run elsewhere may still be here, be off the track, or have run somewhere our archive does not cover — none of that is asserted.

Current form

significance-gated

Last 14 days

Small sample
1 from 9
Only 9 runners in the last 14 days — too few to read against the baseline (gate: n≥15). The card states the sample and stays neutral.

When the yard fires

strike by month, lifetime
JFMAMJJASOND
5266111115121398914
A flat yard: the season runs Mar–Oct. Muted months are small samples (under 30 runs) — read them with the caution they deserve.

Jockey bookings

same window · biggest samples first
Go-to riderLewis Edmunds
45% of all rides
10.8% SR · A/E 1.03
RiderRWSR£1
Lewis Edmunds 609 66 10.8% −112.30
Martin Dwyer 74 9 12.2% +6.75
P J McDonald 53 10 18.9% +14.36
Nicola Currie 44 5 11.4% −12.17
Tom Marquand 35 6 17.1% +25.80
Hollie Doyle 32 5 15.6% −3.75
Callum Shepherd 30 3 10% −12.40
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2021→
153
Archived wins
4
Pattern / graded wins
£3.26m
Prize money
2021
Best season · 34 wins
Pyledriver (GB) — King George VI And Queen Elizabeth Qipco Stakes (Group 1) (British Champions Series) Ascot · Jul 2022 · Group 1
£708,875
Pyledriver (GB) — Coral Coronation Cup (Group 1) (British Champions Series) Epsom Downs · Jun 2021 · Group 1
£187,143
Pyledriver (GB) — Hardwicke Stakes (Group 2) Ascot · Jun 2023 · Group 2
£141,775
Notable horses
Caramay (GB) Mitrosonfire (GB) Top Secret (GB) Morte Point (GB) Ebt's Guard (GB) Starproof (IRE)

Sires in the string

progeny record · win % by ground and trip
Lethal Force (IRE) 15.7% · 14–89
Progeny have won 10.7% of 4,270 runs since 2017 (268 horses). Weakest on Soft going: 6.1% from 359.
Cable Bay (IRE) 8.2% · 4–49
Progeny have won 9.9% of 3,728 runs since 2019 (243 horses). Strongest at trips under 6f (all codes): 13.8% from 645. Weakest over 1m2f – 1m4f (all codes): 5.5% from 290.
Mastercraftsman (IRE) 14.3% · 7–49
Progeny have won 10.6% of 11,646 runs since 2013 (842 horses). Strongest over 2m5f – 3m (all codes): 13.7% from 329.
Oasis Dream (GB) 12.8% · 6–47
Progeny have won 11.7% of 18,052 runs since 2008 (1,511 horses). Strongest on Firm going: 17.3% from 150. Weakest on Heavy going: 8.5% from 485. Weakest over 1m5f – 2m (all codes): 7.1% from 792.
Profitable (IRE) 10.6% · 5–47
Progeny have won 9.6% of 4,450 runs since 2021 (358 horses).
Showcasing (GB) 7.7% · 3–39
Progeny have won 10.2% of 11,665 runs since 2014 (1,000 horses). Weakest over 2m1f – 2m4f (all codes): 5.5% from 109.
Top line: the yard's own record with each sire's runners (win %, wins–runs), same window as the header; faded under 30 runs. Beneath it: every run by that sire's progeny in our archive since 2008, as at 13 Nov 2026 — what they have done, not a forecast. A going or a distance is named only where at least 100 progeny runs sit 3 or more points from the sire's own win rate. Distance bands cover Flat and jumps together.

The record

latest 50 of 1,355 · newest first

The latest 50 of 1,355 archived runners, newest first. The full record runs from 12 April 2021 to 5 November 2026.

DateCourseHorseRaceFinishSP
05 Nov 26 Chelmsford (AW) Pyleates (GB)J: Ashley Lewis Midnite Ain't Your Grandad's Bookie Handicap Stakes (GBBPlus Race)Class 4 · 16f · Standard · 6 ran 6th 9/2
05 Nov 26 Chelmsford (AW) Hoosthat (GB)J: Rhys Elliott All-Weather Championship Is Back Nursery Handicap StakesClass 6 · 10f · Standard · 9 ran 9th 40/1
05 Nov 26 Chelmsford (AW) Read All About It (GB)J: Ashley Lewis Midnite Built Different Handicap Stakes (Div II)Class 6 · 10f · Standard · 13 ran 6th 18/1
04 Nov 26 Kempton (AW) Katalyst (GB)J: Ryan Kavanagh Try Unibet's Smartview Racecards Handicap StakesClass 6 · 12f · Standard / Slow · 14 ran 12th 50/1
04 Nov 26 Kempton (AW) The Coffee Pod (IRE)J: Lewis Edmunds Unibet 3 Uniboosts A Day Handicap Stakes (London Sprint Series Qualifier)Class 5 · 6f · Standard / Slow · 11 ran 8th 4/1
04 Nov 26 Kempton (AW) Humble Pyle (GB)J: Lewis Edmunds Unibet/British EBF Fillies' Novice Stakes (Div II) (GBB/GBBPlus Race)Class 3 · 8f · Standard / Slow · 12 ran 7th 28/1
02 Nov 26 Wolverhampton (AW) Mohaab (GB)J: Rob Hornby Midnite Built Different Handicap StakesClass 6 · 9.5f · Standard · 12 ran 8th 12/1
02 Nov 26 Wolverhampton (AW) Captain Cairney (GB)J: Lewis Edmunds Midnite It's Actually Pretty Good Handicap StakesClass 5 · 14f · Standard · 9 ran 8th 3/1
02 Nov 26 Wolverhampton (AW) Enricher (IRE)J: Lewis Edmunds All Weather Championship Is Back Handicap Stakes (Div I)Class 4 · 7f · Standard · 7 ran 1st 11/1
29 Oct 26 Southwell (AW) Midnight Media (GB)J: Lewis Edmunds Midnite: Built For 2026 Not 2006 Fillies' Handicap StakesClass 5 · 11f · Standard · 7 ran 3rd 15/8F
29 Oct 26 Southwell (AW) Diamondise (IRE)J: Lewis Edmunds ARC All Weather Bonus Is Back Nursery Handicap StakesClass 6 · 7f · Standard · 13 ran 4th 11/1
28 Oct 26 Kempton (AW) Herculeus (GB)J: Oisin Murphy Unibet More Extra Place Races Handicap StakesClass 5 · 7f · Standard / Slow · 13 ran 10th 10/1
28 Oct 26 Kempton (AW) Blue Hercules (IRE)J: Ashley Lewis Try Unibet's New Racing Bet Builder Handicap Stakes (GBBPlus Race)Class 4 · 12f · Standard / Slow · 10 ran 4th 15/2
28 Oct 26 Kempton (AW) Medway Queen (IRE)J: David Probert Set Your Limits With Unibet Fillies' Handicap StakesClass 5 · 8f · Standard / Slow · 9 ran 6th 6/1
28 Oct 26 Nottingham Ebt's Guard (GB)J: Lewis Edmunds Robin Hood Stakes (Listed Race) (Formerly Known As The Ben Marshall Stakes)Class 1 · 8.5f · Soft · 8 ran 2nd 9/2
27 Oct 26 Wolverhampton (AW) Kudos Too (GB)J: Lewis Edmunds Midnite Built Different Handicap StakesClass 5 · 12f · Standard · 10 ran 10th 13/2
26 Oct 26 Kempton (AW) Katalyst (GB)J: Lewis Edmunds Try Unibet's Superboosts Handicap StakesClass 6 · 11f · Standard / Slow · 10 ran 7th 14/1
26 Oct 26 Southwell (AW) Flag Of Nations (IRE)J: Marco Ghiani Midnite A Next Generation Betting App Novice Stakes (gbb Race)Class 4 · 6f · Standard · 10 ran 4th 10/1
24 Oct 26 Southwell (AW) Kev (GB)J: Daniel Muscutt Aw Trails Day - Lingfield 2nd Jan 2027 Handicap StakesClass 6 · 8f · Standard · 13 ran 5th 7/2F
24 Oct 26 Doncaster Breacher (GB)J: Lewis Edmunds William Hill Futurity Trophy Stakes (Group 1)Class 1 · 8f · Heavy · 7 ran 6th 25/1

Drawn from the whole archive (2005 onwards), so it can include runs outside the window the header statistics cover. Non-runners are not listed. A finish shown in letters is a non-completion (F fell · UR unseated · PU pulled up · BD brought down).

KTB’s figures

the forward record · since 5 Oct 2026

KTB’s figures on this yard’s runners since 5 Oct 2026: the KTB Selection in 6 runs (won 1, 1 did not run) · top-rated on KTB Rating in 3 runs (won 0) · fastest on KTB Speed in 4 runs (won 0) · to 4 Nov 2026.

Each pick was a KTB figure’s choice before the off — the published KTB Selection, the top-rated horse on KTB Rating, the fastest on KTB Speed — settled against the result the next morning and never worked out again; “did not run” is counted apart. GB and Irish races only. A record of weeks so far: read it as a count, not a verdict.

Quick answers

What is William Muir & Chris Grassick's strike rate?
William Muir & Chris Grassick has won 153 of 1,355 runners since 2008, a strike rate of 11.3% (as at 13 November 2026). Figures are computed from our own results archive.
Which course does William Muir & Chris Grassick do best at?
Nottingham by strike rate: 9 wins from 44 runners (20.5%) since 2008. Read from the 15 courses with the most runners on the same basis, and only those with at least 30 — a small sample cannot top the list, and a rarely-visited course is not in the comparison.
Who rides most for William Muir & Chris Grassick?
Lewis Edmunds, with 609 runners since 2008 — 45% of the total. That pairing has won 66 (10.8%).
Is William Muir & Chris Grassick in form?
Too few runners in the last 14 days to read — 9 runners, which is not a sample we will draw a conclusion from.
What is William Muir & Chris Grassick's Fair A/E?
1.01, from 1,349 runners with a computed fair probability since 2008. Fair A/E compares actual wins with a margin-stripped market expectation, so 1.00 is par: above it the wins came at bigger prices than the margin-free market implied, below it they did not.
Fair A/E compares wins with a margin-stripped market expectation. Favourite-heavy samples — top yards, leading riders — naturally read a few points warm, so 1.05 means "beat the margin-free market read", not "the market underrates this by 5%". Three sample sizes are reported and never blended: runs (n), the ROI basis (n at SP), and the fair-A/E basis (n with a computed fair probability).

Strike rate is wins over all runs (n). ROI is £1 level stakes at SP over runs with a parseable price (n at SP). Fair A/E is wins over margin-stripped market expectation, over runs with a computed fair probability (n fair). The three Ns can legitimately differ and are always shown. Figures as at 13 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).