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Trainer profile

S T Mason

97 runners in the lifetime window · 10 individual horses
As at 22 Oct 2026 · KTB archive: 2005–present, updated daily
Last runner Apr 2009 98% of runners on the flat
Last 5 seasons Lifetime (2008→)
No runners 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.
10–97
Wins / Runs
10.3%
Strike rate
n=97
23 (24%)
Placed
1.41
Fair A/E
n=96 · 1.19 incl. margin
+26.80
£1 level stake
n=97 at SP · +27.6%
£26,083
Prize money (window)
Strike by season
12.5%
KTB at a glance Claiming riders: 13.5%

Yard patterns

the angles behind the record · vs 10.3% baseline
Fresh · 61+ days off
30%+19.7
n=10 · A/E 9.31 · £1 +65.50
New recruits · first run for the yard
0%−10.3
n=4 · A/E 0.00 · £1 −4.00
Debutants · first career start
0%−10.3
n=1 · A/E 0.00 · £1 −1.00
Headgear returns · back on after a bare run
14.3%+4.0
n=7 · A/E 4.55 · £1 +14.00
When favourite
60%
n=5 · A/E 2.05 · £1 +3.47
Claiming riders · a claimer in the saddle
13.5%+3.2
n=37 · A/E 1.53 · £1 +4.72

Each tile is the record in that situation vs the 10.3% 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 C&D winners 21.9% vs 10.3% · n=32
On Standard (AW) going 17.9% vs 10.3% · n=56
With claiming riders up 13.5% vs 10.3% · n=37
With a new jockey booking 7.9% vs 10.3% · n=38
At trips under 6f 8.1% vs 10.3% · n=37
In Class 6 11.6% vs 10.3% · n=69 · A/E 1.56
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 95 10 10.5% +28.80
Hurdle 2 0 0% −2.00

Going

GoingRWSR£1
Standard (AW) 56 10 17.9% +67.80
Good 15 0 0% −15.00
Good to Firm 14 0 0% −14.00
Good to Soft 6 0 0% −6.00
Soft 4 0 0% −4.00
Firm 1 0 0% −1.00
Heavy 1 0 0% −1.00

Courses

CourseRWSR£1
Wolverhampton (AW) 29 6 20.7% +18.72
Lingfield (AW) 14 3 21.4% +28.08
Southwell (AW) 12 1 8.3% +22.00
Redcar 6 0 0% −6.00
Hamilton 6 0 0% −6.00
Catterick 5 0 0% −5.00
Nottingham 3 0 0% −3.00
Doncaster 3 0 0% −3.00
Beverley 3 0 0% −3.00
Carlisle 2 0 0% −2.00
Ayr 2 0 0% −2.00
Thirsk 2 0 0% −2.00
Ripon 2 0 0% −2.00
Brighton 1 0 0% −1.00
Yarmouth 1 0 0% −1.00

Class

ClassRWSR£1
Class 6 69 8 11.6% +50.08
Class 5 23 0 0% −23.00
Class 7 3 2 66.7% +1.72
Class 4 2 0 0% −2.00

Market position

In the bettingRWSRA/E£1
Favourite 6 3 50% 1.71 +2.47
2nd–3rd fav 12 3 25% 1.85 +5.83
4th–6th fav 28 1 3.6% 0.44 −19.50
7th+ in betting 51 3 5.9% 2.05 +38.00
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
General Feeling (IRE)from K R Burke · then David Nicholls 23 5 8 8 Apr 09
Kabis Amigos (GB)from David Nicholls · then Ollie Pears 18 1 5 20 Apr 09
She's Our Beauty (IRE)from David Nicholls 14 1 1 22 Mar 09
Hawaii Prince (GB)from David Nicholls 14 0 2 17 Dec 08
Blackheath (IRE)from David Nicholls 14 3 6 18 Jun 08
Susiedil (IRE)from Sue Bradburne 7 0 0 7 Dec 08
Thompsons Walls (IRE)from P C Haslam · then David Nicholls 3 0 0 30 Apr 09
Ma Nadri (GB) 2 0 0 30 Aug 08
Viewforth (GB)from Michael Wigham 1 0 0 13 Apr 09
Ten To The Dozen (GB)from Peter Hiatt · then David Thompson 1 0 1 18 Jan 09
All 10 horses sent out 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.
Where they came from · where they went next

Of the 10 horses listed, 9 arrived from another yard in our archive, most often from David Nicholls (4); 1 had its first archived run for this yard.

4 have since run for another yard, most often for David Nicholls (2); 6 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.

When the yard fires

strike by month, lifetime
JFMAMJJASOND
1829250000000339
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
RiderRWSR£1
Kelly Harrison 18 3 16.7% −4.78
Declan Cannon 10 2 20% +18.50
Greg Fairley 6 0 0% −6.00
Paul Hanagan 6 3 50% +38.33
Frankie McDonald 6 1 16.7% +28.00
Paul Fessey 5 0 0% −5.00
Silvestre De Sousa 5 0 0% −5.00
Duran Fentiman 4 0 0% −4.00
Hayley Turner 3 1 33.3% +0.75
Martin Dwyer 3 0 0% −3.00
Tom Eaves 3 0 0% −3.00
Paddy Aspell 3 0 0% −3.00
Muted rows are under 30 rides.

Career highlights

lifetime archive, 2006→
13
Archived wins
£40,579
Prize money
2008
Best season · 7 wins
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.
She's Our Beauty (IRE) — Go Racing At York Tomorrow Night Claiming Stakes Catterick · Jul 2007 · Class 6
£2,730
Hawaii Prince (GB) — totecourse to course Median Auction Maiden Stakes Catterick · May 2007 · Class 6
£2,730
Blackheath (IRE) — Easter Is Egg-Stra Special At Pontin's handicap Wolverhampton (AW) · Mar 2008 · Class 6
£2,048
Notable horses
General Feeling (IRE) She's Our Beauty (IRE) Blackheath (IRE) Hawaii Prince (GB) Kabis Amigos (GB)

Sires in the string

progeny record · win % by ground and trip
General Monash (USA) 21.7% · 5–23
Progeny have won 5.8% of 120 runs since 2008 (16 horses).
Nashwan (USA) 5.6% · 1–18
Progeny have won 9.2% of 292 runs since 2008 (27 horses).
Common Grounds (GB) 21.4% · 3–14
Progeny have won 13.9% of 36 runs since 2008 (3 horses).
Imperial Ballet (IRE) 7.1% · 1–14
Progeny have won 7.2% of 1,342 runs since 2008 (99 horses). Strongest on Standard (AW) going: 10.2% from 245. Strongest at trips under 6f (all codes): 12% from 150.
Primo Valentino (IRE) 0% · 0–14
Progeny have won 8.4% of 1,160 runs since 2008 (78 horses). Strongest on Good to Soft going: 13.6% from 132. Strongest over 1m5f – 2m (all codes): 12.2% from 181. Weakest at trips under 6f (all codes): 3.3% from 183.
Mujadil (USA) 0% · 0–7
Progeny have won 8.2% of 2,379 runs since 2008 (132 horses). Strongest over 2m1f – 2m4f (all codes): 11.7% from 111.
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 22 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 163 · newest first

The latest 50 of 163 archived runners, newest first. The full record runs from 31 October 2006 to 30 April 2009.

DateCourseHorseRaceFinishSP
30 Apr 09 Redcar Thompsons Walls (IRE)J: Patrick Donaghy Redcar Conference And Exhibition Centre Apprentice Claiming StakesClass 6 · 6f · Good To Firm · 13 ran 6th 14/1
20 Apr 09 Wolverhampton (AW) Kabis Amigos (GB)J: George Baker Wolverhampton-racecourse.co.uk HandicapClass 6 · 7f · Standard · 12 ran 7th 9/1
15 Apr 09 Beverley Thompsons Walls (IRE)J: Tom Eaves Welcome Back To Beverley Selling StakesClass 5 · 8.5f · Good To Firm · 17 ran 11th 16/1
13 Apr 09 Yarmouth Viewforth (GB)J: Shane Kelly Toteexacta Claiming StakesClass 6 · 6f · Good · 13 ran 13th 66/1
08 Apr 09 Nottingham General Feeling (IRE)J: Paul Hanagan 'Newcomers Night On Saturday 18th April' HandicapClass 6 · 8.5f · Good To Firm · 15 ran 8th 8/1
04 Apr 09 Wolverhampton (AW) Kabis Amigos (GB)J: Shane Kelly Best Free Bets @ freebets.co.uk HandicapClass 5 · 7f · Standard · 10 ran 5th 11/2
01 Apr 09 Lingfield (AW) General Feeling (IRE)J: Martin Dwyer Lingfield Park Derby Trial May 9th HandicapClass 5 · 12f · Standard · 8 ran 6th 11/2
30 Mar 09 Wolverhampton (AW) Kabis Amigos (GB)J: Paul Hanagan Enjoy The Lucky 7 Group Offer HandicapClass 6 · 7f · Standard · 12 ran 3rd 15/2
27 Mar 09 Wolverhampton (AW) Thompsons Walls (IRE)J: Tom Eaves Enjoy The Lucky 7 Group Offer Claiming StakesClass 6 · 9.5f · Standard · 10 ran 7th 50/1
23 Mar 09 Wolverhampton (AW) Kabis Amigos (GB)J: Paul Hanagan Enjoy The Lucky 7 Group Offer Claiming Stakes (Div 2)Class 6 · 7f · Standard · 10 ran 1st 5/1
22 Mar 09 Southwell (AW) She's Our Beauty (IRE)J: Frankie McDonald Hospitality At Southwell Racecourse Selling StakesClass 6 · 5f · Standard · 7 ran 5th 40/1
18 Mar 09 Lingfield (AW) General Feeling (IRE)J: Martin Dwyer Hartfield HandicapClass 5 · 10f · Standard · 8 ran 3rd 7/1
18 Mar 09 Lingfield (AW) Kabis Amigos (GB)J: Greg Fairley Newchapel Selling StakesClass 6 · 7f · Standard · 11 ran 5th 14/1
02 Mar 09 Lingfield (AW) She's Our Beauty (IRE)J: Joe Fanning Coot HandicapClass 6 · 5f · Standard · 9 ran 9th 15/2
03 Feb 09 Southwell (AW) She's Our Beauty (IRE)J: Frankie McDonald Book Your Tickets On Line Selling StakesClass 6 · 5f · Standard · 6 ran 4th 25/1
30 Jan 09 Lingfield (AW) General Feeling (IRE)J: Paul Hanagan Play Bingo at williamhill.com HandicapClass 6 · 8f · Standard · 12 ran 1st 10/3
25 Jan 09 Wolverhampton (AW) Kabis Amigos (GB)J: Greg Fairley 24hr Telephone Betting At William Hill 0800 44 40 40 HandicapClass 6 · 7f · Standard · 12 ran 3rd 12/1
23 Jan 09 Wolverhampton (AW) Kabis Amigos (GB)J: Greg Fairley Franksalot's 100th Race Tonight HandicapClass 6 · 7f · Standard · 12 ran 10th 11/4F
18 Jan 09 Kempton (AW) Ten To The Dozen (GB)J: James Doyle Blue Square SP Guarantee Handicap (Div 1)Class 6 · 8f · Standard · 10 ran 3rd 5/1
16 Jan 09 Lingfield (AW) General Feeling (IRE)J: Hayley Turner William Hill January Sale - Why Bet Elsewhere HandicapClass 6 · 8f · Standard · 11 ran 1st 11/4F

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 S T Mason's strike rate?
S T Mason has won 10 of 97 runners since 2008, a strike rate of 10.3% (as at 22 October 2026). Figures are computed from our own results archive.
What is S T Mason's Fair A/E?
1.41, from 96 runners with a computed fair probability since 2008. 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 22 October 2026, computed from our own results archive (2005 onwards; aggregates from 2008).