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Jockey profile

J Costa

3 rides in the lifetime window · 2 individual horses
As at 28 Oct 2026 · KTB archive: 2005–present, updated daily
Last ride Oct 2009 100% of rides on the flat
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.
0–3
Wins / Runs
0%
Strike rate
n=3
0 (0%)
Placed
—
n=0 · — incl. margin
—
£1 level stake
n=0 at SP · —
£9,903
Prize money (window)

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=2 · A/E — · £1 —
Fresh horses · 61+ days off
0%+0.0
n=1 · A/E — · £1 —

Each tile is the record in that situation vs the 0% 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
Good 2 0 0% —
Soft 1 0 0% —

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
Romeo Des Champs (FR) 2 0 0 30 Oct 09
Tartesos (GB) 1 0 0 25 Sep 09
All 2 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
P Chatelain 3 0 0% —
Muted rows are under 30 rides.

Sires of the horses ridden

progeny record · win % by ground and trip
Marchand De Sable (USA) 0% · 0–2
Progeny have won 10.2% of 1,093 runs since 2008 (128 horses). Strongest on Good to Soft going: 13.2% from 167. Weakest over 2m1f – 2m4f (all codes): 6.8% from 148.
In The Wings (GB) 0% · 0–1
Progeny have won 8.7% of 1,518 runs since 2008 (110 horses). Strongest on Good to Firm going: 13% from 231. Weakest on Heavy going: 4.4% from 114.
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 28 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 4 archived runs · newest first

Every one of J Costa's 4 archived rides, from 2 June 2005 to 30 October 2009, newest first — no winners among them.

Best finish: 2nd of 3 — Romeo Des Champs (FR), Maisons-Laffitte (FR), 30 Oct 2009.

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 J Costa's strike rate?
J Costa has won 0 of 3 rides since 2008, a strike rate of 0% (as at 28 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 28 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).