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Trainer profile

Jonathan Portman

1,387 runners in the last 5 seasons · 137 individual horses
As at 20 Oct 2026 · KTB archive: 2005–present, updated daily
Non-runners: 1.7% of 294 declared in the last 365 days, counting all recorded withdrawals, including reserves. For context, a typical day across all racing ends with about 6.5% withdrawn (middle half 5.3–8.1% over 364 racing days). As at 20 Oct 2026.
Won yesterday Last runner yesterday 99% of runners on the flat
from 1 Jan 2022
148–1,387
Wins / Runs
10.7%
Strike rate
n=1,387
443 (32%)
Placed
1.04
n=1,382 · 0.90 incl. margin
−251.09
£1 level stake
n=1,387 at SP · −18.1%
£2.24m
Prize money (window)
Strike by season
10.5%
KTB Yard Profile

Sends out around 280 runners a season, almost all on the flat, winning with 11% of them — beating the margin-free market read across five seasons (Fair A/E 1.04). In Group and Graded company the record reads 15% (33 runs).

Deterministic profile computed from 1,387 archived runs (last 5 seasons) · updated 20 Oct 2026
KTB at a glance Fires Apr–May Fresh horses: 11.9% 35.9% when favourite Rob Hornby: 10.8% from 555 Claiming riders: 11.3% Group/Graded: 15.2% Sends off the favourite in 7% of races
The read

The record is strongest at Southwell (AW) (18.2%, n=55) and Nottingham (17.9%, n=39) — all clear of the yard's 10.7% baseline. In Group and Graded company the record reads well at 15.2% (n=33, Fair A/E 1.87), but debutants struggle at 2% (n=99, Fair A/E 0.62). Horses returning fresh after 61+ days are the standout value angle: 11.9% strikes only just above baseline, but Fair A/E 1.51 and +36.58 to a £1 stake over 168 runners — a record the market has persistently underpriced. Rob Hornby rides 40% of the entries and matches the yard's average almost exactly (10.8%, A/E 1.07) — the partnership beats the margin-free market read. The record reads poorly in Class 3 — 1.5% over 68 runners, 9.2pts below the baseline. 11 Group and Graded wins sit in the archive record — the biggest prize the yard has landed: the Weatherbys Super Sprint at Newbury (Jul 2016, £122,925). The stable star of the record: Russian Rumour (IRE) — 10 wins from 63 runs for the yard. Seasonally, the yard fires Apr–May.

Written from the figures on this page — every claim carries its sample. Descriptive, not a tip.

Yard patterns

the angles behind the record · vs 10.7% baseline
Fresh · 61+ days off
11.9%+1.2
n=168 · A/E 1.51 · £1 +36.58
New recruits · first run for the yard
22.2%+11.5
n=9 · A/E 4.05 · £1 +23.00
Debutants · first career start
2%−8.7
n=99 · A/E 0.62 · £1 −52.00
First-time headgear · true-first definition
11.9%+1.2
n=59 · A/E 1.55 · £1 +23.05
Headgear returns · back on after a bare run
7.1%−3.6
n=14 · A/E 0.64 · £1 −8.50
When favourite
35.9%
n=103 · A/E 1.28 · £1 +10.36
Claiming riders · a claimer in the saddle
11.3%+0.6
n=275 · A/E 1.06 · £1 −43.99
Group / Graded races · pattern & listed
15.2%+4.5
n=33 · A/E 1.87 · £1 +1.83

Each tile is the record in that situation vs the 10.7% 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.

Notable angles

vs their own baseline
With debutants 2% vs 10.7% · n=99
In Class 3 1.5% vs 10.7% · n=68
On last-time-out winners 17% vs 10.7% · n=141
With Joe Leavy 19.4% vs 10.7% · n=36
At Southwell (AW) 18.2% vs 10.7% · n=55
At Nottingham 17.9% vs 10.7% · n=39
Descriptive splits ranked by divergence × sample — insight, not instruction. Every angle carries its N; nothing under 30 runs qualifies. Rows within 2pts of the baseline appear only when the market-relative read (Fair A/E) diverges, and show it.

Record by conditions

same window as header

Race type

TypeRWSR£1
Flat 1,379 148 10.7% −243.09
Hurdle 6 0 0% −6.00
NH Flat 2 0 0% −2.00

Going

GoingRWSR£1
Standard (AW) 531 51 9.6% −83.32
Good to Firm 315 43 13.7% −40.86
Good 279 28 10% −125.62
Good to Soft 124 9 7.3% −40.92
Soft 90 9 10% +19.25
Heavy 33 4 12.1% +21.25
Firm 15 4 26.7% −0.87

Courses

CourseRWSR£1
Kempton (AW) 209 15 7.2% −30.29
Windsor 127 13 10.2% −31.17
Wolverhampton (AW) 125 15 12% +3.80
Newbury 108 9 8.3% −52.92
Bath 102 15 14.7% +1.83
Lingfield (AW) 91 7 7.7% −65.95
Goodwood 66 4 6.1% −8.50
Sandown 58 6 10.3% −24.76
Southwell (AW) 55 10 18.2% +37.00
Salisbury 53 6 11.3% −3.25
Brighton 50 6 12% −6.84
Chelmsford City (AW) 50 4 8% −26.88
Nottingham 39 7 17.9% −2.04
Epsom 38 6 15.8% +0.45
Ascot 34 2 5.9% −22.67

Class

ClassRWSR£1
Class 5 467 54 11.6% −92.93
Class 6 422 50 11.8% −48.68
Class 4 307 29 9.4% −110.14
Class 2 90 9 10% +62.50
Class 3 68 1 1.5% −63.67
Class 1 33 5 15.2% +1.83

Market position

In the bettingRWSRA/E£1
Favourite 130 45 34.6% 1.30 +16.36
2nd–3rd fav 330 51 15.5% 0.93 −76.95
4th–6th fav 452 35 7.7% 0.94 −40.50
7th+ in betting 475 17 3.6% 1.16 −150.00
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 trained

same window as header · most-raced first
HorseRWPlLast ran
Mrembo (GB) 51 6 20 5 Oct 26
Two Tempting (IRE) 51 9 21 23 Sep 26
Way Of Life (GB) 47 7 27 1 Aug 26
Russian Rumour (IRE) 43 6 16 7 Oct 26
Strike (GB) 42 5 17 7 Oct 26
Sweet Reward (IRE) 42 5 12 18 Sep 26
Hellavapace (GB) 41 2 17 25 Jul 25
Thunderous Love (GB) 36 6 12 1 Oct 26
Newfangled (IRE) 36 7 16 28 Sep 26
Bownder (IRE) 36 4 14 1 Sep 26
Rumstar (GB) 35 7 13 4 Oct 26
Brinton (GB) 29 4 13 13 Jun 26
Showing the 60 most-raced of the 137 horses sent out in this window — each ran at least 8 times. Horses with fewer runs aren't listed; search finds any horse since 2005. 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.
Where they came from · where they went next

Of the 60 horses listed, 1 arrived from another yard in our archive; 59 had their first archived run for this yard.

6 have since run for another yard; 54 have no later run for another yard in our archive.

Read from each listed horse's whole archived career (2005 onwards), not only this window, and counted over the horses listed above, not the whole string. “First archived run” means our archive holds nothing earlier, not that the horse was unraced. A horse with no later run elsewhere may still be here, be off the track, or have run somewhere our archive does not cover — none of that is asserted.

Current form

significance-gated

Last 14 days

Steady
2 from 17 11.8% · +1.1pts vs baseline
Last 14 days11.8%
5-season base10.7%
Shown only when the 14-day window is large enough to mean anything (n≥15). A cold run renders the same card with a quiet badge — never hidden.

When the yard fires

strike by month, 5 seasons
JFMAMJJASOND
6510161410129910116
A flat yard: the season runs Mar–Oct. Muted months are small samples (under 30 runs) — read them with the caution they deserve.

Jockey bookings

same window · biggest samples first
Go-to riderRob Hornby
40% of all rides
10.8% SR · A/E 1.07
RiderRWSR£1
Rob Hornby 555 60 10.8% −35.97
Olivia Tubb 165 23 13.9% +8.86
Trevor Whelan 93 8 8.6% −45.37
Hector Crouch 76 11 14.5% −19.50
Rhys Clutterbuck 45 3 6.7% −16.25
Tyler Saunders 42 5 11.9% −15.80
Joe Leavy 36 7 19.4% −4.49
Muted rows are under 30 rides and sit behind "Show all".

Career highlights

lifetime archive, 2005→
452
Archived wins
11
Pattern / graded wins
£4.87m
Prize money
2025
Best season · 45 wins
In our archive from its very first year (2005), so this career almost certainly began earlier than our record does. The figures above count 2005 onwards only — what the archive holds, not a full-career total. This card is the full archive census (2005→); the statistics in the header aggregate from 2008 — the floor that guarantees every horse a complete captured career — so this card can legitimately show more wins than the header.
Mrs Danvers (GB) — Weatherbys Super Sprint Newbury · Jul 2016 · Class 2
£122,925
Spanish Bounty (GB) — toteswinger Heritage Handicap Newmarket · Jul 2008 · Class 2
£62,310
Rumstar (GB) — Coral Charge (Group 3) (Registered As The Sprint Stakes) Sandown · Jul 2026 · Group 3
£53,875

Sires in the string

progeny record · win % by ground and trip
New Bay (GB) 18.2% · 16–88
Progeny have won 14.3% of 3,939 runs since 2008 (420 horses). Weakest at trips under 6f (all codes): 10.8% from 102.
Zoustar (AUS) 16.9% · 12–71
Progeny have won 10.8% of 2,736 runs since 2008 (313 horses). Strongest at trips under 6f (all codes): 14.3% from 328. Weakest over 1m2f – 1m4f (all codes): 3.6% from 193.
Havana Grey (GB) 14% · 8–57
Progeny have won 13.3% of 4,533 runs since 2008 (415 horses). Strongest over 1m2f – 1m4f (all codes): 16.3% from 104. Weakest over 1m – 1m1f (all codes): 10.3% from 408.
Twilight Son (GB) 8.8% · 5–57
Progeny have won 9.6% of 3,641 runs since 2008 (281 horses). Strongest at trips under 6f (all codes): 12.6% from 613.
Havana Gold (IRE) 16.4% · 9–55
Progeny have won 9.5% of 5,049 runs since 2008 (402 horses). Weakest on Heavy going: 4.3% from 116. Strongest at trips under 6f (all codes): 13% from 522. Weakest over 1m5f – 2m (all codes): 6.2% from 177.
Time Test (GB) 7.4% · 4–54
Progeny have won 10.9% of 3,101 runs since 2008 (337 horses). Weakest on Soft going: 5.9% from 320. Strongest over 1m5f – 2m (all codes): 14.7% from 312.
Top line: the yard'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 20 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

latest 50 of 5,316 · newest first

The latest 50 of 5,316 archived runners, newest first. The full record runs from 3 January 2005 to 19 October 2026.

DateCourseHorseRaceFinishSP

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 Jonathan Portman's strike rate?
Jonathan Portman has won 148 of 1,387 runners since 2022, a strike rate of 10.7% (as at 20 October 2026). Figures are computed from our own results archive.
Which course does Jonathan Portman do best at?
Southwell (AW) by strike rate: 10 wins from 55 runners (18.2%) since 2022. Read from the 15 courses with the most runners on the same basis, and only those with at least 30 — a small sample cannot top the list, and a rarely-visited course is not in the comparison.
Who rides most for Jonathan Portman?
Rob Hornby, with 555 runners since 2022 — 40% of the total. That pairing has won 60 (10.8%).
Is Jonathan Portman in form?
In the last 14 days: 17 runners, 2 winners, a strike rate of 11.8%. That is in line with the baseline of 10.7% since 2022.
What is Jonathan Portman's Fair A/E?
1.04, from 1,382 runners 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 20 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).