Trainer profile

Efrain Arguinzones

2 runners in the last 5 seasons · 2 individual horses
As at 23 Aug 2026 · KTB archive: 2005–present, updated daily
Last runner Jul 2025 100% of runners on the flat
Last 5 seasons Lifetime (2024→)
from 1 Jan 2022
0–2
Wins / Runs
0%
Strike rate
n=2
0 (0%)
Placed
0.00
Fair A/E
n=2 · 0.00 incl. margin
−2.00
£1 level stake
n=2 at SP · −100.0%
£4,877
Prize money (window)
Strike by season
0%

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

Yard patterns

the angles behind the record · vs 0% baseline
Debutants · first career start
0%+0.0
n=2 · A/E 0.00 · £1 −2.00
First-time headgear · true-first definition
0%+0.0
n=1 · A/E 0.00 · £1 −1.00
Group / Graded races · pattern & listed
0%+0.0
n=2 · A/E 0.00 · £1 −2.00

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. Headgear figures use the true-first definition (first gear appearance in the captured career); returns are gear back on after a bare run. Claiming riders are runs where the booked rider carried a weight claim. Group / Graded covers pattern and listed races.

Record by conditions

same window as header

Going

GoingRWSR£1
Good 1 0 0% −1.00
Soft 1 0 0% −1.00

Rows below n=30 are shown faded — a small sample is a fact, not a trend. Every figure carries its N.

Jockey bookings

same window · biggest samples first
RiderRWSR£1
Nicolas De Julian 1 0 0% −1.00
Freddy Martinez 1 0 0% −1.00
Muted rows are under 30 rides.
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 23 August 2026, computed from our own results archive (2005 onwards; aggregates from 2008).