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Jockey profile

William Marshall

219 rides in the lifetime window · 146 individual horses
As at 29 Oct 2026 · KTB archive: 2005–present, updated daily
Last ride Sep 2021 100% of rides over jumps
No rides in the last 5 seasons — showing the lifetime record, from 1 Jan 2008 — the aggregate floor: every horse in the window has a complete captured career behind it.
17–219
Wins / Runs
7.8%
Strike rate
n=219
56 (26%)
Placed
0.78
n=219 · 0.66 incl. margin
−118.86
£1 level stake
n=219 at SP · −54.3%
£153k
Prize money (window)
Strike by season
9.5%
KTB Rider Profile

Rode around 40 times a season, almost all over hurdles and fences, winning on 8% of them — a touch below the margin-free market read across the lifetime window (Fair A/E 0.78). Rode mostly for Dan Skelton — 60% of rides in the window.

Deterministic profile computed from 219 archived runs (lifetime window) · updated 29 Oct 2026
KTB at a glance Dan Skelton: 8.4% from 131 Claiming: 8.5%
The read

Rides in big fields of 14 or more have been a poor signal at 4.1% (n=49, Fair A/E 0.70). The market has consistently overbet first rides on a horse: 7.5% strike, Fair A/E 0.76 and −90.11 to a £1 stake over 146 rides — those runners underperformed what the price implied. Dan Skelton supplied 60% of the rides and matches the rider's average almost exactly (8.4%, A/E 0.80). The rider also read well off a 8-14-day break (14.7%, n=34) and over 2m1f – 2m4f (13%, n=69). The record read poorly over 2m5f – 3m — 3.6% over 56 rides, 4.2pts below the baseline. The market has consistently overbet the rider on Good going: Fair A/E 0.84 across 93 rides (10.8% strike, −47.11 to a £1 stake) — runners there underperformed what the price implied.

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

Riding patterns

the angles behind the record · vs 7.8% baseline
First ride on the horse · first captured pairing
7.5%−0.3
n=146 · A/E 0.76 · £1 −90.11
Last-time-out winners · previous run was a win
18.2%+10.4
n=22 · A/E 0.97 · £1 −9.55
Fresh horses · 61+ days off
7.1%−0.7
n=56 · A/E 0.84 · £1 −43.13
When favourite
29.2%
n=24 · A/E 1.05 · £1 −7.86
Claiming rides · riding with a claim
8.5%+0.7
n=200 · A/E 0.82 · £1 −99.86
Big fields · 14+ runners
4.1%−3.7
n=49 · A/E 0.70 · £1 −28.00
Group / Graded races · pattern & listed
0%−7.8
n=9 · A/E 0.00 · £1 −9.00

Each tile is the record in that situation vs the 7.8% baseline — descriptive splits with the sample always shown, not tips. Tiles under 30 runs render muted. First rides are the first captured pairing of horse and rider; last-time-out winners are horses whose previous captured run was a win; claiming rides are runs where the rider carried a weight claim. Group / Graded covers pattern and listed races.

Notable angles

vs their own baseline
Off a 8-14-day break 14.7% vs 7.8% · n=34
Over 2m1f – 2m4f 13% vs 7.8% · n=69
Over 2m5f – 3m 3.6% vs 7.8% · n=56
On Good going 10.8% vs 7.8% · n=93
On Good to Soft going 5% vs 7.8% · n=40
In Chase races 10.4% vs 7.8% · n=48
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
Hurdle 160 12 7.5% −91.36
Chase 48 5 10.4% −16.50
NH Flat 10 0 0% −10.00
Flat 1 0 0% −1.00

Going

GoingRWSR£1
Good 93 10 10.8% −47.11
Soft 59 4 6.8% −28.25
Good to Soft 40 2 5% −19.00
Heavy 21 1 4.8% −18.50
Good to Firm 5 0 0% −5.00
Standard (AW) 1 0 0% −1.00

Courses

CourseRWSR£1
Uttoxeter 21 1 4.8% −18.38
Warwick 16 0 0% −16.00
Market Rasen 11 2 18.2% −0.75
Doncaster 11 0 0% −11.00
Huntingdon 10 2 20% −5.30
Worcester 10 0 0% −10.00
Hereford 9 1 11.1% +1.00
Cheltenham 9 1 11.1% +3.00
Bangor-on-Dee 8 1 12.5% −4.75
Southwell 8 1 12.5% +1.00
Fakenham 7 0 0% −7.00
Ascot 6 0 0% −6.00
Exeter 6 0 0% −6.00
Wincanton 6 0 0% −6.00
Cartmel 6 1 16.7% −4.43

Class

ClassRWSR£1
Class 4 90 7 7.8% −62.23
Class 5 74 7 9.5% −33.63
Class 3 26 3 11.5% +6.00
Class 2 16 0 0% −16.00
Class 1 9 0 0% −9.00
Class 6 4 0 0% −4.00

Market position

In the bettingRWSRA/E£1
Favourite 27 7 25.9% 0.95 −10.86
2nd–3rd fav 37 5 13.5% 0.80 −4.00
4th–6th fav 70 4 5.7% 0.72 −32.00
7th+ in betting 85 1 1.2% 0.38 −72.00
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.

Jumping record

completion over obstacles · same window as header
87% completed · 208 obstacle rides (chases & hurdles)
CodeRCompFURPUBDOth
Chase 48 72.9% 2 0 11 0 0
Hurdle 160 91.3% 4 2 7 1 0
Chases and hurdles only — bumpers have no obstacles, so completion is not a question there. F fell · UR unseated rider · PU pulled up · BD brought down · Oth covers refusals, slip-ups, run-outs and the rare disqualification. Non-runners are excluded throughout. Rows under n=30 are shown faded. A descriptive record, not a tip.

Horses ridden

same window as header · most-raced first
HorseRWPlLast ran
Joly Maker (IRE) 6 1 3 25 Jul 21
West To The Bridge (IRE) 6 2 2 14 Mar 20
Just Go For It (GB) 5 1 2 11 Mar 21
Call Me Chris (GB) 4 0 0 2 Feb 20
Cobra De Mai (FR) 4 0 0 25 Jan 20
Northofthewall (IRE) 4 0 3 30 Nov 19
Stowaway Magic (IRE) 4 0 0 13 Apr 19
Tyrrell's Succes (FR) 3 0 0 28 Aug 21
Lets Go Dutchess (GB) 3 0 0 22 Aug 21
Demon D'aunou (FR) 3 0 1 22 Jun 21
Top Beak (IRE) 3 1 2 23 Mar 21
Gregarious (IRE) 3 0 0 4 Feb 21
Showing the 60 most-raced of the 146 horses ridden in this window — each ran at least 1 time. 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.

By month

strike by month, lifetime
JFMAMJJASOND
1331115131310140570
A jumps rider: the season runs Oct–Apr. Muted months are small samples (under 30 runs) — read them with the caution they deserve.

Riding for

same window · biggest samples first
Main yardDan Skelton
60% of all rides
8.4% SR · A/E 0.80
TrainerRWSR£1
Dan Skelton 131 11 8.4% −72.43
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2017→
17
Archived wins
£153k
Prize money
2019
Best season · 7 wins
Sam Red (FR) — Ryman Stationery Cheltenham Business Club Amateur Riders' Handicap Chase Cheltenham · Oct 2018 · Class 3
£9,359
Value At Risk (GB) — Weatherbys Racing Bank Handicap Chase Market Rasen · Jan 2019 · Class 3
£7,522
West To The Bridge (IRE) — Watch Racing Tv In Stunning Hd Handicap Hurdle Wetherby · Jan 2020 · Class 3
£6,238

Sires of the horses ridden

progeny record · win % by ground and trip
Flemensfirth (USA) 16.7% · 2–12
Progeny have won 11.9% of 17,282 runs since 2008 (1,594 horses).
Getaway (GER) 0% · 0–9
Progeny have won 11.3% of 10,934 runs since 2008 (1,028 horses). Strongest on Good to Firm going: 23.3% from 133.
Kayf Tara (GB) 11.1% · 1–9
Progeny have won 12.6% of 13,744 runs since 2008 (1,148 horses). Strongest on Heavy going: 16.2% from 1,708.
Mahler (GB) 0% · 0–8
Progeny have won 10.8% of 8,853 runs since 2008 (785 horses). Strongest on Good to Firm going: 15.1% from 119.
Stowaway (GB) 0% · 0–7
Progeny have won 11.3% of 7,190 runs since 2008 (561 horses). Strongest on Good to Firm going: 16.1% from 124.
Martaline (GB) 16.7% · 1–6
Progeny have won 14.2% of 7,345 runs since 2008 (723 horses). Weakest on Standard (AW) going: 9.4% from 128. Weakest over 1m – 1m1f (all codes): 10% from 120.
Top line: the rider'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 29 Oct 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 219 · newest first

The latest 50 of 219 archived rides, newest first. The full record runs from 2 October 2017 to 1 September 2021.

DateCourseHorseRaceFinishSP
27 Jun 21 Cartmel Doune Castle (GB)T: Noel C Kelly Coniston Handicap HurdleClass 4 · 25.5f · Good · 11 ran 2nd 9/4J
27 Jun 21 Cartmel Tyrrell's Succes (FR)T: Noel C Kelly Sedbergh Handicap ChaseClass 4 · 25.5f · Good · 9 ran 5th 40/1
18 May 21 Huntingdon Joly Maker (IRE)T: Jonjo O'Neill Racing TV Handicap ChaseClass 5 · 20f · Good · 9 ran 1st 5/2F

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).

Quick answers

What is William Marshall's strike rate?
William Marshall has won 17 of 219 rides since 2008, a strike rate of 7.8% (as at 29 October 2026). Figures are computed from our own results archive.
Which yard does William Marshall ride most for?
Dan Skelton, with 131 rides since 2008 — 60% of the total. That pairing has won 11 (8.4%).
What is William Marshall's Fair A/E?
0.78, from 219 rides 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 29 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).