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Jockey profile

Sean O'Briain

32 rides in the last 5 seasons · 27 individual horses
As at 6 Nov 2026 · KTB archive: 2005–present, updated daily
Last ride Apr 2023 100% of rides over jumps
Last 5 seasons Lifetime (2018→)
from 1 Jan 2022
2–32
Wins / Runs
6.3%
Strike rate
n=32
5 (16%)
Placed
0.58
Fair A/E
n=32 · 0.51 incl. margin
−25.17
£1 level stake
n=32 at SP · −78.7%
£22,301
Prize money (window)
Strike by season
10%

Riding patterns

the angles behind the record · vs 6.3% baseline
First ride on the horse · first captured pairing
3.7%−2.6
n=27 · A/E 0.34 · £1 −22.67
Last-time-out winners · previous run was a win
0%−6.3
n=2 · A/E 0.00 · £1 −2.00
Fresh horses · 61+ days off
0%−6.3
n=13 · A/E 0.00 · £1 −13.00
When favourite
0%
n=4 · A/E 0.00 · £1 −4.00
Claiming rides · riding with a claim
6.3%+0.0
n=32 · A/E 0.58 · £1 −25.17
Big fields · 14+ runners
0%−6.3
n=4 · A/E 0.00 · £1 −4.00

Each tile is the record in that situation vs the 6.3% 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
Hurdle 26 2 7.7% −19.17
Chase 5 0 0% −5.00
NH Flat 1 0 0% −1.00

Going

GoingRWSR£1
Good 18 2 11.1% −11.17
Good to Soft 8 0 0% −8.00
Soft 4 0 0% −4.00
Good to Firm 1 0 0% −1.00
Heavy 1 0 0% −1.00

Courses

CourseRWSR£1
Plumpton 4 0 0% −4.00
Uttoxeter 4 0 0% −4.00
Wincanton 4 0 0% −4.00
Southwell 2 0 0% −2.00
Newbury 2 0 0% −2.00
Ludlow 2 0 0% −2.00
Lingfield 2 0 0% −2.00
Huntingdon 2 0 0% −2.00
Exeter 2 1 50% +0.50
Doncaster 1 0 0% −1.00
Fakenham 1 0 0% −1.00
Fontwell 1 1 100% +3.33
Hereford 1 0 0% −1.00
Kempton 1 0 0% −1.00
Chepstow 1 0 0% −1.00

Class

ClassRWSR£1
Class 4 14 2 14.3% −7.17
Class 5 13 0 0% −13.00
Class 3 3 0 0% −3.00
Class 2 2 0 0% −2.00

Market position

In the bettingRWSRA/E£1
Favourite 4 0 0% 0.00 −4.00
2nd–3rd fav 5 2 40% 1.70 +1.83
4th–6th fav 12 0 0% 0.00 −12.00
7th+ in betting 11 0 0% 0.00 −11.00
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
77.4% completed · 31 obstacle rides (chases & hurdles)
CodeRCompFURPUBDOth
Chase 5 80% 0 1 0 0 0
Hurdle 26 76.9% 1 0 5 0 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
Neil The Legend (GB) 3 0 0 24 Nov 22
Conceal (IRE) 2 0 0 9 Apr 23
Midnight Callisto (GB) 2 1 1 24 Feb 23
Hana Collonges (FR) 2 0 0 13 Sep 22
King Otis (IRE) 1 0 0 10 Apr 23
Half The Freedom (GB) 1 0 0 1 Apr 23
Mutual Respect (IRE) 1 0 0 10 Mar 23
Polar Cloud (GB) 1 0 0 9 Mar 23
Hatos (FR) 1 0 0 9 Mar 23
Chives (GB) 1 0 0 3 Mar 23
Bothwell Bridge (IRE) 1 0 0 3 Mar 23
Ucanaver (GB) 1 0 1 2 Mar 23
All 27 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, 5 seasons
JFMAMJJASOND
033000···0000
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
TrainerRWSR£1
Nicky Henderson 13 0 0% −13.00
Anthony Honeyball 7 2 28.6% −0.17
Billy Aprahamian 5 0 0% −5.00
Katharine Davis 3 0 0% −3.00
Heather Main 1 0 0% −1.00
Tom Symonds 1 0 0% −1.00
Jonjo O'Neill 1 0 0% −1.00
Barry Brennan 1 0 0% −1.00
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2018→
2
Archived wins
£25,693
Prize money
2023
Best season · 2 wins
Midnight Callisto (GB) — Virgin Bet Best Odds Daily Mares' Handicap Hurdle Exeter · Feb 2023 · Class 4
£5,809
Fountains Chief (GB) — Bet Online At Betgoodwin Handicap Hurdle Fontwell · Feb 2023 · Class 4
£4,330
Notable horses
Midnight Callisto (GB) Fountains Chief (GB)

Sires of the horses ridden

progeny record · win % by ground and trip
Stowaway (GB) 0% · 0–4
Progeny have won 11.3% of 7,190 runs since 2008 (561 horses). Strongest on Good to Firm going: 16.1% from 124.
Passing Glance (GB) 0% · 0–3
Progeny have won 12.4% of 3,568 runs since 2008 (295 horses). Strongest on Heavy going: 15.8% from 222. Weakest on Standard (AW) going: 7.2% from 290. Weakest over 6f – 7f (all codes): 8.8% from 171.
Blue Bresil (FR) 0% · 0–2
Progeny have won 12.1% of 3,539 runs since 2013 (463 horses).
Kapgarde (FR) 0% · 0–2
Progeny have won 12.5% of 6,634 runs since 2008 (725 horses).
Midnight Legend (GB) 50% · 1–2
Progeny have won 14.2% of 8,311 runs since 2008 (494 horses).
Estidhkaar (IRE) 0% · 0–1
Progeny have won 6.9% of 1,592 runs since 2020 (112 horses). Strongest on Good to Firm going: 11.8% from 119. Weakest on Soft going: 2.6% from 229.
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 37 archived runs · newest first

Every one of Sean O'Briain's 37 archived rides, from 7 August 2018 to 10 April 2023, newest first — 2 winners among them.

DateCourseHorseRaceFinishSP
10 Apr 23 Plumpton King Otis (IRE)T: Billy Aprahamian Tie The Knot Wedding Catering Handicap HurdleClass 5 · 25f · Soft · 8 ran 5th 50/1
09 Apr 23 Plumpton Conceal (IRE)T: Billy Aprahamian William Hill Pick Your Places Handicap ChaseClass 5 · 19.5f · Good · 6 ran UR 8/1
01 Apr 23 Uttoxeter Half The Freedom (GB)T: Jonjo O'Neill Tony And Linda Elliott For Impact Conditional Jockeys' Handicap HurdleClass 5 · 16f · Soft · 8 ran 4th 4/1
10 Mar 23 Exeter Mutual Respect (IRE)T: Billy Aprahamian Virgin Bet Daily Money Back Novices' Handicap HurdleClass 5 · 16.5f · Good · 15 ran 5th 13/2
09 Mar 23 Wincanton Polar Cloud (GB)T: Heather Main Gore Browne Investment Management Maiden Hurdle (GBB Race)Class 4 · 20f · Good To Soft · 7 ran PU 40/1
09 Mar 23 Wincanton Hatos (FR)T: Anthony Honeyball Wiltshire Bobby Van Trust Handicap HurdleClass 4 · 24.5f · Good To Soft · 7 ran 4th 17/2
03 Mar 23 Newbury Bothwell Bridge (IRE)T: Nicky Henderson Play Pick 6 At Betvictor Handicap HurdleClass 3 · 24f · Good · 7 ran 5th 5/1
03 Mar 23 Newbury Chives (GB)T: Nicky Henderson A-plan Insurance Supporting West Berkshire Mencap Conditional Jockeys' Handicap HurdleClass 4 · 20.5f · Good · 7 ran 5th 3/1F
02 Mar 23 Ludlow Ucanaver (GB)T: Anthony Honeyball George Rickards Birthday Mares' Handicap HurdleClass 3 · 24f · Good · 10 ran 3rd 16/1
01 Mar 23 Wincanton Konigin Isabella (GER)T: Anthony Honeyball Watch Racing TV On Sky 426 Mares' Handicap HurdleClass 5 · 15f · Good · 8 ran F 16/1
01 Mar 23 Wincanton Le Coeur Net (FR)T: Anthony Honeyball PIB Insurance Brokers Handicap ChaseClass 5 · 20f · Good · 6 ran 4th 12/1
26 Feb 23 Fontwell Fountains Chief (GB)T: Anthony Honeyball Bet Online At Betgoodwin Handicap HurdleClass 4 · 21.5f · Good · 7 ran 1st 10/3
25 Feb 23 Chepstow Choccabloc (GB)T: Nicky Henderson Pertemps Healthcare Open Maiden NH Flat Race (GBB Race)Class 5 · 16f · Good To Soft · 14 ran 2nd 9/1
24 Feb 23 Exeter Midnight Callisto (GB)T: Anthony Honeyball Virgin Bet Best Odds Daily Mares' Handicap HurdleClass 4 · 16.5f · Good · 3 ran 1st 6/4
13 Feb 23 Plumpton Full Of Light (IRE)T: Nicky Henderson Placesetting Equipment Hire Handicap HurdleClass 4 · 20.5f · Good · 6 ran 6th 12/1
11 Feb 23 Uttoxeter Park Hill Dancer (FR)T: Nicky Henderson QuinnBet Maiden Hurdle (GBB Race)Class 4 · 23.5f · Good To Soft · 8 ran 5th 11/10F
08 Feb 23 Southwell Midnight Callisto (GB)T: Anthony Honeyball Follow Us At vickers.bet Mares' Handicap HurdleClass 5 · 16f · Good · 7 ran 4th 10/3F
30 Jan 23 Huntingdon Vaxholm (IRE)T: Barry Brennan Every Race Live On Racing TV Juvenile Maiden Hurdle (GBB Race)Class 4 · 16f · Good · 8 ran PU 200/1
14 Jan 23 Warwick On The Blind Side (IRE)T: Nicky Henderson Pertemps Network Handicap Hurdle (GBB Race)Class 2 · 25f · Heavy · 7 ran PU 18/1
09 Jan 23 Taunton Mrs Kinsella (IRE)T: Billy Aprahamian Portman Cup Saturday 21st January Mares' Handicap HurdleClass 5 · 16.5f · Soft · 11 ran 8th 80/1

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 Sean O'Briain's strike rate?
Sean O'Briain has won 2 of 32 rides since 2022, a strike rate of 6.3% (as at 6 November 2026). Figures are computed from our own results archive.
What is Sean O'Briain's Fair A/E?
0.58, from 32 rides with a computed fair probability since 2022. 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).