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Jockey profile

Mr Seb Spencer

31 rides in the lifetime window · 15 individual horses
As at 6 Nov 2026 · KTB archive: 2005–present, updated daily
Last ride Sep 2013 90% of rides on the flat
Last 5 seasons Lifetime (2008→)
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.
3–31
Wins / Runs
9.7%
Strike rate
n=31
8 (26%)
Placed
1.30
Fair A/E
n=31 · 1.11 incl. margin
−2.00
£1 level stake
n=31 at SP · −6.5%
£7,304
Prize money (window)
Strike by season
14.3%

Riding patterns

the angles behind the record · vs 9.7% baseline
First ride on the horse · first captured pairing
13.3%+3.6
n=15 · A/E 1.99 · £1 +5.50
Last-time-out winners · previous run was a win
0%−9.7
n=5 · A/E 0.00 · £1 −5.00
Fresh horses · 61+ days off
33.3%+23.6
n=3 · A/E 7.19 · £1 +6.50
When favourite
0%
n=1 · A/E 0.00 · £1 −1.00
Claiming rides · riding with a claim
8%−1.7
n=25 · A/E 1.27 · £1 −7.00
Big fields · 14+ runners
7.1%−2.6
n=14 · A/E 1.13 · £1 −3.00

Each tile is the record in that situation vs the 9.7% baseline — descriptive splits with the sample always shown, for you to weigh. 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

Race type

TypeRWSR£1
Flat 28 3 10.7% +1.00
NH Flat 3 0 0% −3.00

Going

GoingRWSR£1
Good to Firm 16 1 6.3% −6.50
Good 10 2 20% +9.50
Good to Soft 3 0 0% −3.00
Soft 1 0 0% −1.00
Standard (AW) 1 0 0% −1.00

Courses

CourseRWSR£1
Catterick 6 0 0% −6.00
Beverley 3 0 0% −3.00
Haydock 3 0 0% −3.00
Pontefract 2 1 50% +6.50
Redcar 2 1 50% +9.00
Newcastle 2 0 0% −2.00
Carlisle 2 0 0% −2.00
Leicester 2 0 0% −2.00
Warwick 1 0 0% −1.00
Newmarket 1 1 100% +8.50
Newbury 1 0 0% −1.00
Musselburgh 1 0 0% −1.00
Wetherby 1 0 0% −1.00
Southwell (AW) 1 0 0% −1.00
Thirsk 1 0 0% −1.00

Class

ClassRWSR£1
Class 6 20 1 5% −9.00
Class 5 11 2 18.2% +7.00

Market position

In the bettingRWSRA/E£1
Favourite 4 0 0% 0.00 −4.00
2nd–3rd fav 4 0 0% 0.00 −4.00
4th–6th fav 5 2 40% 4.73 +14.50
7th+ in betting 18 1 5.6% 1.47 −8.50
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
Maybeme (GB) 6 0 1 5 Sep 13
Efidium (GB) 5 0 1 26 Oct 09
Umverti (GB) 3 1 1 13 Aug 10
Lucayan Dancer (GB) 3 1 1 12 Aug 10
Adiator (GB) 2 0 0 28 Aug 13
Tump Mac (GB) 2 0 0 26 May 09
Plum Mac (GB) 2 0 0 14 Mar 09
Eium Mac (GB) 1 0 0 26 Aug 13
Eeny Mac (IRE) 1 1 1 31 Jul 13
Danum Dancer (GB) 1 0 0 4 Oct 11
Red Fama (GB) 1 0 1 14 Sep 10
Ebur Mac (GB) 1 0 1 29 Oct 09
All 15 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.

By month

strike by month, lifetime
JFMAMJJASOND
··0·5003311000·
A flat rider: the season runs Mar–Oct. Muted months are small samples (under 30 runs) — read them with the caution they deserve.

Riding for

same window · biggest samples first
Main yardNeville Bycroft
100% of all rides
9.7% SR · A/E 1.30
TrainerRWSR£1
Neville Bycroft 31 3 9.7% −2.00
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2008→
3
Archived wins
£7,304
Prize money
2010
Best season · 2 wins
Umverti (GB) — Pontefract Handicap (for Gentleman Amateur Riders) Pontefract · Aug 2010 · Class 5
£2,811
Eeny Mac (IRE) — Betfair Novice Flat Amateur Riders' Handicap (Novice Amateur Riders) Redcar · Jul 2013 · Class 6
£1,872
Lucayan Dancer (GB) — Bollinger Champagne Challenge Series Handicap (for Gentleman Amateur Riders) Newmarket · May 2010 · Class 5
£969
Notable horses
Umverti (GB) Lucayan Dancer (GB) Eeny Mac (IRE)

Sires of the horses ridden

progeny record · win % by ground and trip
Presidium (GB) 0% · 0–8
Progeny have won 2.5% of 321 runs since 2008 (42 horses).
Lujain (USA) 0% · 0–6
Progeny have won 8.3% of 1,688 runs since 2008 (99 horses). Weakest on Soft going: 4.6% from 108.
Averti (IRE) 33.3% · 1–3
Progeny have won 8.6% of 1,137 runs since 2008 (79 horses). Weakest on Good to Soft going: 3.6% from 110. Strongest over 1m2f – 1m4f (all codes): 13.6% from 140. Weakest at trips under 6f (all codes): 5.6% from 162.
Zieten (USA) 33.3% · 1–3
Progeny have won 9% of 324 runs since 2008 (33 horses). Weakest on Standard (AW) going: 6% from 100.
Compton Admiral (GB) 0% · 0–2
Progeny have won 7.7% of 418 runs since 2008 (34 horses). Strongest on Good to Firm going: 13.2% from 106. Strongest over 1m – 1m1f (all codes): 12.6% from 103.
Needwood Blade (GB) 0% · 0–2
Progeny have won 7.9% of 2,746 runs since 2008 (187 horses).
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 6 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

all 31 archived runs · newest first

Every one of Mr Seb Spencer's 31 archived rides, from 25 November 2008 to 5 September 2013, newest first — 3 winners among them.

DateCourseHorseRaceFinishSP
05 Sep 13 Haydock Maybeme (GB)T: Neville Bycroft Betfred Mobile Casino Handicap (Gentleman Amateur Riders)Class 5 · 12f · Good To Firm · 11 ran 8th 20/1
28 Aug 13 Carlisle Adiator (GB)T: Neville Bycroft Betfair Novice Flat Amateur Riders' Handicap (Novice Amateur Riders)Class 6 · 6f · Good To Firm · 10 ran 5th 7/2J
26 Aug 13 Ripon Eium Mac (GB)T: Neville Bycroft Betfair Novice Flat Amateur Riders' Handicap (Novice Amateur Riders)Class 6 · 10f · Good · 14 ran 9th 20/1
12 Aug 13 Thirsk Maybeme (GB)T: Neville Bycroft Betfair Novice Flat Amateur Handicap (Novice Amateur Riders)Class 6 · 16f · Good · 11 ran 7th 9/2
31 Jul 13 Redcar Eeny Mac (IRE)T: Neville Bycroft Betfair Novice Flat Amateur Riders' Handicap (Novice Amateur Riders)Class 6 · 8f · Good · 17 ran 1st 10/1
24 Jul 13 Leicester Adiator (GB)T: Neville Bycroft Betfair Amateur Handicap (Novice Amateur Riders)Class 6 · 7f · Good · 14 ran 4th 7/2F
17 Jul 13 Catterick Maybeme (GB)T: Neville Bycroft Betfair Novice Flat Amateur Riders' Handicap (Novice Amateur Riders)Class 6 · 12f · Good To Firm · 12 ran 7th 10/1
04 Oct 11 Catterick Danum Dancer (GB)T: Neville Bycroft Catterickbridge.co.uk Amateur Riders' HandicapClass 6 · 5f · Good To Firm · 14 ran 5th 11/2J
20 Sep 11 Beverley Maybeme (GB)T: Neville Bycroft Brian And Jason Merrington Memorial Amateur Riders' Handicap (Div 1)Class 6 · 10f · Good To Firm · 15 ran 3rd 8/1
13 Sep 11 Haydock Maybeme (GB)T: Neville Bycroft happyfeetuk.com Handicap (Gentleman Amateur Riders)Class 5 · 12f · Good To Soft · 13 ran 7th 10/1
14 Sep 10 Haydock Red Fama (GB)T: Neville Bycroft TurfTv.co.uk Handicap (For Gentleman Amateur Riders)Class 5 · 12f · Soft · 13 ran 3rd 4/1
13 Aug 10 Catterick Umverti (GB)T: Neville Bycroft Pin Point Recruitment Amateur Riders' HandicapClass 5 · 12f · Good · 12 ran 4th 7/2J
12 Aug 10 Beverley Lucayan Dancer (GB)T: Neville Bycroft White Rose Saddlery Chris Hoggard Memorial Handicap (for Amateur Riders) (Div 1)Class 6 · 8.5f · Good To Firm · 13 ran 9th 25/1
04 Aug 10 Pontefract Umverti (GB)T: Neville Bycroft Pontefract Handicap (for Gentleman Amateur Riders)Class 5 · 10f · Good · 8 ran 1st 15/2
28 Jun 10 Musselburgh Maybeme (GB)T: Neville Bycroft Bollinger Champagne Challenge Series Handicap (for Gentleman Amateur Riders)Class 6 · 16f · Good To Firm · 10 ran 6th 12/1
10 Jun 10 Newbury Lucayan Dancer (GB)T: Neville Bycroft Bollinger Champagne Challenge Series Handicap (For Gentleman Amateur Riders)Class 5 · 10f · Good To Firm · 15 ran 14th 12/1
28 May 10 Newmarket Lucayan Dancer (GB)T: Neville Bycroft Bollinger Champagne Challenge Series Handicap (for Gentleman Amateur Riders)Class 5 · 10f · Good To Firm · 9 ran 1st 17/2
29 Oct 09 Newcastle Ebur Mac (GB)T: Neville Bycroft John Smith's Maiden NH Flat Race (Conditionals' And Amateurs')Class 6 · 16f · Good · 15 ran 3rd 40/1
26 Oct 09 Leicester Efidium (GB)T: Neville Bycroft Amateur Jockeys Association Insure Their Members HandicapClass 5 · 7f · Good To Firm · 12 ran 8th 25/1
13 Oct 09 Newcastle Efidium (GB)T: Neville Bycroft Spooky Spectacular On 31st October Amateurs' Handicap (Div 1)Class 6 · 12.5f · Good To Soft · 13 ran 13th 20/1

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 Mr Seb Spencer's strike rate?
Mr Seb Spencer has won 3 of 31 rides since 2008, a strike rate of 9.7% (as at 6 November 2026). Figures are computed from our own results archive.
What is Mr Seb Spencer's Fair A/E?
1.30, from 31 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 6 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).