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Jockey profile

Mr Darren Costello

10 rides in the lifetime window · 8 individual horses
As at 6 Nov 2026 · KTB archive: 2005–present, updated daily
Last ride Aug 2013 90% of rides on the flat
Last 5 seasons Lifetime (2012→)
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.
0–10
Wins / Runs
0%
Strike rate
n=10
5 (50%)
Placed
0.00
Fair A/E
n=10 · 0.00 incl. margin
−10.00
£1 level stake
n=10 at SP · −100.0%
£3,026
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 0% baseline
First ride on the horse · first captured pairing
0%+0.0
n=8 · A/E 0.00 · £1 −8.00
Last-time-out winners · previous run was a win
0%+0.0
n=2 · A/E 0.00 · £1 −2.00
Fresh horses · 61+ days off
0%+0.0
n=2 · A/E 0.00 · £1 −2.00
When favourite
0%
n=2 · A/E 0.00 · £1 −2.00
Claiming rides · riding with a claim
0%+0.0
n=10 · A/E 0.00 · £1 −10.00
Big fields · 14+ runners
0%+0.0
n=5 · A/E 0.00 · £1 −5.00

Each tile is the record in that situation vs the 0% 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 9 0 0% −9.00
Hurdle 1 0 0% −1.00

Going

GoingRWSR£1
Good to Firm 4 0 0% −4.00
Good 4 0 0% −4.00
Soft 1 0 0% −1.00
Standard (AW) 1 0 0% −1.00

Courses

CourseRWSR£1
Redcar 2 0 0% −2.00
Catterick 2 0 0% −2.00
Wolverhampton (AW) 1 0 0% −1.00
Beverley 1 0 0% −1.00
Carlisle 1 0 0% −1.00
Thirsk 1 0 0% −1.00
Goodwood 1 0 0% −1.00
Leicester 1 0 0% −1.00

Class

ClassRWSR£1
Class 6 7 0 0% −7.00
Class 5 3 0 0% −3.00

Market position

In the bettingRWSRA/E£1
Favourite 2 0 0% 0.00 −2.00
4th–6th fav 4 0 0% 0.00 −4.00
7th+ in betting 4 0 0% 0.00 −4.00
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
Rio Cobolo (IRE) 3 0 2 15 Aug 13
Kuanyao (IRE) 1 0 1 28 Aug 13
Evergreen Forest (IRE) 1 0 0 25 Aug 13
Ferney Boy (GB) 1 0 0 12 Aug 13
Slide Show (GB) 1 0 1 17 Jul 13
Well Bank (IRE) 1 0 0 28 May 13
Galley Slave (IRE) 1 0 1 18 Dec 12
Cabal (GB) 1 0 0 17 Dec 12
All 8 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
David Nicholls 6 0 0% −6.00
Natalie Lloyd-Beavis 1 0 0% −1.00
Michael Chapman 1 0 0% −1.00
Chris Fairhurst 1 0 0% −1.00
Andrew Crook 1 0 0% −1.00
Muted rows are under 30 rides.

Sires of the horses ridden

progeny record · win % by ground and trip
Captain Rio (GB) 0% · 0–3
Progeny have won 9.5% of 6,912 runs since 2008 (423 horses).
American Post (GB) 0% · 0–1
Progeny have won 10.1% of 2,964 runs since 2008 (263 horses). Strongest on Good to Firm going: 13.9% from 108.
Courteous (GB) 0% · 0–1
Progeny have won 3.2% of 125 runs since 2008 (18 horses).
Galileo (IRE) 0% · 0–1
Progeny have won 14.5% of 18,201 runs since 2008 (1,776 horses). Strongest over 6f – 7f (all codes): 18.2% from 1,383. Weakest over 2m5f – 3m (all codes): 9.4% from 890.
Haafhd (GB) 0% · 0–1
Progeny have won 10.9% of 4,752 runs since 2008 (305 horses).
Iffraaj (GB) 0% · 0–1
Progeny have won 10.5% of 13,990 runs since 2010 (1,093 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 10 archived runs · newest first

Every one of Mr Darren Costello's 10 archived rides, from 17 December 2012 to 28 August 2013, newest first — no winners among them.

Best finish: 2nd of 17 — Rio Cobolo (IRE), Redcar, 31 Jul 2013.

DateCourseHorseRaceFinishSP
28 Aug 13 Carlisle Kuanyao (IRE)T: David Nicholls Betfair Novice Flat Amateur Riders' Handicap (Novice Amateur Riders)Class 6 · 6f · Good To Firm · 10 ran 2nd 10/1
25 Aug 13 Goodwood Evergreen Forest (IRE)T: Natalie Lloyd-Beavis Goodwood Amateur Rider Challenge Handicap (In Memory Of The Late Gay Kindersley)Class 5 · 9f · Good · 14 ran 11th 20/1
15 Aug 13 Beverley Rio Cobolo (IRE)T: David Nicholls White Rose Saddlery Amateur Riders' Handicap (Div 2)Class 6 · 8.5f · Good To Firm · 9 ran 5th 6/1
12 Aug 13 Thirsk Ferney Boy (GB)T: Chris Fairhurst Betfair Novice Flat Amateur Handicap (Novice Amateur Riders)Class 6 · 16f · Good · 11 ran 5th 22/1
31 Jul 13 Redcar Rio Cobolo (IRE)T: David Nicholls Betfair Novice Flat Amateur Riders' Handicap (Novice Amateur Riders)Class 6 · 8f · Good · 17 ran 2nd 9/2F
24 Jul 13 Leicester Rio Cobolo (IRE)T: David Nicholls Betfair Amateur Handicap (Novice Amateur Riders)Class 6 · 7f · Good · 14 ran 2nd 17/2
17 Jul 13 Catterick Slide Show (GB)T: David Nicholls Betfair Novice Flat Amateur Riders' Handicap (Novice Amateur Riders)Class 6 · 12f · Good To Firm · 12 ran 2nd 5/2F
28 May 13 Redcar Well Bank (IRE)T: David Nicholls Voltigeur Restaurant 2 Courses For 10.95 Amateur Riders' Maiden HandicapClass 6 · 6f · Good To Firm · 16 ran 12th 7/1
18 Dec 12 Catterick Galley Slave (IRE)T: Michael Chapman Book Now For New Year's Day Amateur Riders' Handicap HurdleClass 5 · 19.5f · Soft · 17 ran 3rd 20/1
17 Dec 12 Wolverhampton (AW) Cabal (GB)T: Andrew Crook Your Favourite Pool Bets At totepool.com Amateur Riders' Handicap (Div 1)Class 5 · 9.5f · Standard · 10 ran 5th 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).

Quick answers

What is Mr Darren Costello's strike rate?
Mr Darren Costello has won 0 of 10 rides since 2008, a strike rate of 0% (as at 6 November 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 6 November 2026, computed from our own results archive (2005 onwards; aggregates from 2008).