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Jockey profile

Sienna Shepard

15 rides in the last 5 seasons · 3 individual horses
As at 29 Oct 2026 · KTB archive: 2005–present, updated daily
Last ride Sep 2025 100% of rides on the flat
Last 5 seasons Lifetime (2023→)
from 1 Jan 2022
1–15
Wins / Runs
6.7%
Strike rate
n=15
2 (13%)
Placed
1.74
Fair A/E
n=15 · 1.48 incl. margin
+19.00
£1 level stake
n=15 at SP · +126.7%
£5,400
Prize money (window)
Strike by season
0%

Small sample — fewer than 30 runs in this window. Read the Ns before the percentages.

Riding patterns

the angles behind the record · vs 6.7% baseline
First ride on the horse · first captured pairing
0%−6.7
n=3 · A/E 0.00 · £1 −3.00
Last-time-out winners · previous run was a win
0%−6.7
n=1 · A/E 0.00 · £1 −1.00
Fresh horses · 61+ days off
0%−6.7
n=3 · A/E 0.00 · £1 −3.00
Claiming rides · riding with a claim
7.1%+0.4
n=14 · A/E 1.85 · £1 +20.00
Big fields · 14+ runners
0%−6.7
n=1 · A/E 0.00 · £1 −1.00

Each tile is the record in that situation vs the 6.7% 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.

Record by conditions

same window as header

Going

GoingRWSR£1
Standard (AW) 9 1 11.1% +25.00
Good 5 0 0% −5.00
Good to Firm 1 0 0% −1.00

Courses

CourseRWSR£1
Nottingham 3 0 0% −3.00
Wolverhampton (AW) 3 1 33.3% +31.00
Chelmsford City (AW) 3 0 0% −3.00
Lingfield (AW) 1 0 0% −1.00
Southwell (AW) 1 0 0% −1.00
Salisbury 1 0 0% −1.00
Carlisle 1 0 0% −1.00
Newcastle (AW) 1 0 0% −1.00
Leicester 1 0 0% −1.00

Class

ClassRWSR£1
Class 6 13 0 0% −13.00
Class 5 2 1 50% +32.00

Market position

In the bettingRWSRA/E£1
2nd–3rd fav 1 0 0% 0.00 −1.00
4th–6th fav 2 0 0% 0.00 −2.00
7th+ in betting 12 1 8.3% 3.03 +22.00
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 ridden

same window as header · most-raced first
HorseRWPlLast ran
More Diamonds (IRE) 9 1 1 31 Aug 24
Mitigator (GB) 4 0 0 12 Jun 25
Houdini Miss (IRE) 2 0 1 9 Sep 25
All 3 horses ridden in this window. 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.

Riding for

same window · biggest samples first
TrainerRWSR£1
James Horton 6 0 0% −6.00
James Ferguson 5 1 20% +29.00
Martin Dunne 4 0 0% −4.00
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2023→
1
Archived wins
£5,400
Prize money
2023
Best season · 1 win
More Diamonds (IRE) — Free Tips Daily On attheraces.com Amateur Jockeys' Handicap (Div 2) Wolverhampton (AW) · Oct 2023 · Class 5
£3,676
Notable horses
More Diamonds (IRE)

Sires of the horses ridden

progeny record · win % by ground and trip
Zoffany (IRE) 11.1% · 1–9
Progeny have won 9.9% of 10,768 runs since 2008 (799 horses).
Delegator (GB) 0% · 0–4
Progeny have won 10.8% of 1,872 runs since 2008 (109 horses). Weakest on Good going: 7.7% from 260. Strongest over 1m5f – 2m (all codes): 14.4% from 180.
Starman (GB) 0% · 0–2
Progeny have won 11.8% of 1,145 runs since 2008 (186 horses). Weakest over 1m – 1m1f (all codes): 8.4% from 167.
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

all 15 archived runs · newest first

Every one of Sienna Shepard's 15 archived rides, from 30 June 2023 to 9 September 2025, newest first — one winner among them.

DateCourseHorseRaceFinishSP
09 Sep 25 Leicester Houdini Miss (IRE)T: James Horton Happy Birthday Toni Robinson Nucleus HR NurseryClass 6 · 7f · Good · 8 ran 7th 10/1
01 Aug 25 Southwell (AW) Houdini Miss (IRE)T: James Horton Prestige Safety Construction Safety Specialists NurseryClass 6 · 7f · Standard · 7 ran 2nd 13/2
12 Jun 25 Chelmsford City (AW) Mitigator (GB)T: Martin Dunne 6 Horses Challenge At bet365 HandicapClass 6 · 8f · Standard · 9 ran 9th 50/1
08 May 25 Chelmsford City (AW) Mitigator (GB)T: Martin Dunne Best Odds Guaranteed At bet365 HandicapClass 6 · 7f · Standard · 11 ran 10th 80/1
24 Apr 25 Chelmsford City (AW) Mitigator (GB)T: Martin Dunne Bet Boost At bet365 HandicapClass 6 · 7f · Standard · 11 ran 9th 50/1
12 Apr 25 Nottingham Mitigator (GB)T: Martin Dunne Shipstones Nut Brown HandicapClass 5 · 10f · Good · 8 ran 8th 50/1
31 Aug 24 Lingfield (AW) More Diamonds (IRE)T: James Horton Libra Utility Drainage Services Amateur Jockeys' HandicapClass 6 · 8f · Standard · 8 ran 7th 25/1
13 Aug 24 Nottingham More Diamonds (IRE)T: James Horton AJA Novice Flat Amateur Jockeys' HandicapClass 6 · 10f · Good To Firm · 14 ran 5th 22/1
05 Aug 24 Carlisle More Diamonds (IRE)T: James Horton Vanessa Lana Brown Appreciation Handicap (Professional And Amateur Female Jockeys) (Div 1)Class 6 · 8f · Good · 9 ran 6th 18/1
06 Jul 24 Nottingham More Diamonds (IRE)T: James Horton ABBA Fever Raceday Amateur Jockeys' HandicapClass 6 · 10f · Good · 11 ran 8th 18/1
09 Oct 23 Wolverhampton (AW) More Diamonds (IRE)T: James Ferguson Free Tips Daily On attheraces.com Amateur Jockeys' Handicap (Div 2)Class 5 · 9.5f · Standard · 9 ran 1st 33/1
02 Sep 23 Wolverhampton (AW) More Diamonds (IRE)T: James Ferguson Snow White Amateur Jockeys' HandicapClass 6 · 8.5f · Standard · 12 ran 6th 40/1
29 Jul 23 Salisbury More Diamonds (IRE)T: James Ferguson Hendy Van Store Handicap (Female Amateur Jockeys)Class 6 · 8f · Good · 10 ran 6th 16/1
25 Jul 23 Wolverhampton (AW) More Diamonds (IRE)T: James Ferguson Sky Sports Racing Sky 415 Amateur Jockeys' HandicapClass 6 · 9.5f · Standard · 13 ran 11th 66/1
30 Jun 23 Newcastle (AW) More Diamonds (IRE)T: James Ferguson Sky Sports Racing Sky 415 Amateur Jockeys' HandicapClass 6 · 10f · Standard To Slow · 13 ran 12th 14/1

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).

Quick answers

What is Sienna Shepard's strike rate?
Sienna Shepard has won 1 of 15 rides since 2022, a strike rate of 6.7% (as at 29 October 2026). Figures are computed from our own results archive. A small sample — fewer than 30 rides, so read the count before the percentage.
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).