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Horse profile

One Cool Clarkson (GB)

10yo gelding (at last run, Dec 2017) · Last trainer Neil McKnight · Last owner Neil Mcknight
by Clerkenwell (USA) out of Decent Dime (IRE) (Insan)
12 runs · 6 courses · from Dec 2013
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 26 Dec 2017 — 3,227 days ago. Our archive can't say whether the horse is still in training.
Last run Dec 2017 · 7th of 14 Last raced off OR 80
KTB Profile

One Cool Clarkson (GB) is yet to win from 12 starts, though has placed twice. Best effort: 3rd of 7 at Ayr (Jan 2017). Last raced off 80, 17lb below the career-high mark.

Based on 12 archived runs · updated 28 Oct 2026
KTB at a glance OR ↓ 17lb off peak
Official rating80↓ 17lb off peak
80 80–97

KTB Speed and Rating

KTB Speed

Best recent Speed 84 the best of the last 3 graded (A or B) runs · Carlisle, 9 Mar 2017

How fast the horse ran, as points against the day-corrected standard time for its course and distance: 100 is the median GB Class 4 handicap winner on that code; one point is 0.1% of the standard time. A, B or C is how much the day's card could tell us, not how good the run was. What this means →

Jumps 4 figures · best 100C · median 72.5
GoingRunsBestMedianSince 28 Oct 2025
Heavy3100C84—
Soft1———
DistanceRunsBestMedianSince 28 Oct 2025
2m1f – 2m4f261B50.5—
2m5f – 3m2100C92—

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 4 figures from 4 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 91A the best of the last 3 rated runs · Carlisle, 9 Mar 2017 Official rating 80 at the last run, 26 Dec 2017

What the horse achieved in each race, in pounds on the official-rating scale, from the weight carried, the lengths beaten and the race's own level solved across the archive — never the market, never the official rating as a starting point. The headline is the best of the horse's last three rated runs on that code. A, B or C on a run is how much known form was in that race. What this means →

Jumps 10 figures · best 112A · median 93.5
GoingRunsBestMedianSince 28 Oct 2025
Soft7112A108—
Heavy391A88—
DistanceRunsBestMedianSince 28 Oct 2025
2m1f – 2m4f5112A109—
2m5f – 3m4108A93.5—
Over 3m1———

Of 12 runs looked at, 2 have no figure: did not complete (or a non-runner row) (2).

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 10 figures from 12 runs · as at 4 Oct 2026 · a record, not a forecast

Both figures are KTB's own, computed from the archive; no vendor rating enters either. Every run's figure is on its form line below with its grade. Grades measure how much the archive could see, never the merit of the run.

Run style is derived from in-running commentary, which our data provider does not supply for this horse's races.

Pedigree intelligence

Sire
Clerkenwell (USA)

Progeny in our archive have won 5.7% of 316 runs since Jan 2008 (44 horses).

Weakest over 2m1f – 2m4f (all codes): 2.6% from 116.

GoingRunsWinsSRvs sireThis horse
Firm500%−5.7—
Good to Firm2813.6%−2.1—
Good10487.7%+20 from 1
Good to Soft7456.8%+1.1—
Soft6411.6%−4.10 from 8
Heavy3538.6%+2.90 from 3
Standard (AW)600%−5.7—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f100%−5.7—
6f – 7f400%−5.7—
1m – 1m1f700%−5.7—
1m2f – 1m4f400%−5.7—
1m5f – 2m6957.2%+1.5—
2m1f – 2m4f11632.6%−3.10 from 5
2m5f – 3m8889.1%+3.40 from 6
Over 3m2727.4%+1.70 from 1

Flat and jumps together (all codes) · since Jan 2008 · as at 28 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Decent Dime (IRE) (Insan)

4 siblings in the archive, 3 winners — best of them Superior Command (IRE) (3 wins).

The wins came over 1m7½f–2m5½f; the highest grade won is Class 3 (Superior Command (IRE)).

ProduceRunsWinsWin tripsBest grade
Superior Command (IRE)1431m7½f–2m1fClass 3
Electric Annie (IRE)2122m4f–2m5½fClass 4
The Second Coming (IRE)911m7½fClass 5
Naming Rights (IRE)20——

Record by conditions

GoingRunsWinsSR£1
Soft 8 0 0% −8.00
Heavy 3 0 0% −3.00
Good 1 0 0% −1.00

ClassRunsWinsSR£1
Class 4 3 0 0% −3.00
Class 5 1 0 0% −1.00

CourseRunsWinsSR£1
Down Royal 5 0 0% −5.00
Carlisle 3 0 0% −3.00
Ayr 1 0 0% −1.00
Downpatrick 1 0 0% −1.00
Navan 1 0 0% −1.00
Punchestown 1 0 0% −1.00

DistanceRunsWinsSR£1
2m5f – 3m 6 0 0% −6.00
2m1f – 2m4f 5 0 0% −5.00
Over 3m 1 0 0% −1.00

JockeyRunsWinsSR£1
Robbie Colgan 4 0 0% −4.00
Graham Watters 3 0 0% −3.00
Ben Dalton 1 0 0% −1.00
Paddy Kennedy 1 0 0% −1.00
Brian Hughes 1 0 0% −1.00
Richard Deegan 1 0 0% −1.00
Mr S Clements 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 11 0 0% −11.00
Cheekpieces 1 0 0% −1.00

SeasonRunsWinsSR£1
2017 3 0 0% −3.00
2016 3 0 0% −3.00
2015 2 0 0% −2.00
2014 3 0 0% −3.00
2013 1 0 0% −1.00

TypeRunsWinsSR£1
Chase 11 0 0% −11.00
Hurdle 1 0 0% −1.00

Splits include every sample, however small — muted rows are under 3 runs. A one-from-one record is a fact, not a trend: read the Runs column before the strike rate.

Form

DateCourseRace PosBtn Wgt ORSpdKTB Jockey SP
2017 · 3 runs
26 Dec 17+292d Down Royal Adam & Ann Armstrong Memorial Handicap Chase (0-102) 19.5f · Heavy · 14 ran 7/14 2¾ 10-5 8061B84A Ben Dalton 14/1
09 Mar 17+51d Carlisle Racing Uk Day Pass Just 10 Novices' Handicap Chase Class 4 · 21f · Heavy · 10 ran 4/10 3¼ 10-12 9184A91A Graham Watters 13/2
17 Jan 17+22d Ayr Racing Uk Profits Returned To Racing Maiden Hurdle Class 5 · 24.5f · Heavy · 7 ran 3/7 38 11-3 91100C88C Graham Watters 66/1
2016 · 3 runs
26 Dec 16+234d Down Royal Adam & Ann Armstrong Memorial Handicap Chase (0-102) 20f · Soft · 16 ran 5/16 3½ 10-3 8240B82A Paddy Kennedy 12/1
06 May 16+57d Downpatrick Celebrity Judges Handicap Chase (0-95) 23f · Good · 10 ran PU/10 — 11-6 87—— Robbie Colgan 9/1
10 Mar 16+371d Carlisle Racing Uk Day Pass Just 10 Novices' Handicap Chase Class 4 · 21f · Soft · 11 ran 3/11 2¼ 11-3 93—108A Brian Hughes 8/1
2015 · 2 runs
05 Mar 15+22d Carlisle Download The winner.co.uk App Now Handicap Chase Class 4 · 26f · Soft · 9 ran 8/9 26 10-11 97—81C Graham Watters 4/1J
11 Feb 15+47d Down Royal St. Patrick's Punter Pack Handicap Chase (0-116) 24f · Yielding To Soft · 11 ran 4/11 1¼ 9-13 89—96A Robbie Colgan 9/1
2014 · 3 runs
26 Dec 14+20d Down Royal Adam & Ann Armstrong Memorial Handicap Chase (0-95) 20f · Soft · 10 ran 3/10 2½ 10-12 88—112A Richard Deegan 13/2
06 Dec 14+21d Navan Drogheda Beginners Chase 20f · Yielding To Soft · 14 ran 13/14 4¾ 11-12 ——109C Robbie Colgan 100/1
15 Nov 14+324d Punchestown Gain Supporting Laois Gaa Beginners Chase 20f · Yielding · 12 ran 9/12 20 11-12 ——109C Robbie Colgan 66/1
2013 · 1 run
26 Dec 13 Down Royal Albert Bartlett Hunters Chase 23f · Soft · 14 ran BD/14 — 11-2 ——— Mr S Clements 40/1

Quick answers

How many races has One Cool Clarkson won?
One Cool Clarkson (GB) has yet to win, from 12 archived starts between 2013 and 2017. Placed 2 times in total (16.7% of starts).
Who trained One Cool Clarkson?
One Cool Clarkson (GB) was trained by Neil McKnight on the most recent run on record, at Down Royal on 26 December 2017.
Who is One Cool Clarkson's sire?
One Cool Clarkson (GB) is by Clerkenwell (USA) out of Decent Dime (IRE), whose sire is Insan.
What is One Cool Clarkson's official rating?
The most recent official rating on record is 80, from the run on 26 December 2017. The highest on record is 97.
What is One Cool Clarkson's sire's record?
Clerkenwell (USA)'s progeny in our archive have won 5.7% of 316 runs since Jan 2008 (44 horses), Flat and jumps together. Weakest over 2m1f – 2m4f (all codes): 2.6% from 116.
Who are One Cool Clarkson's siblings?
Out of Decent Dime (IRE), One Cool Clarkson (GB) has 4 other produce in our archive, 3 of them winners. Most wins: Superior Command (IRE) (3). Highest grade won: Class 3 (Superior Command (IRE)). The wins came over 1m7½f–2m5½f. As at Oct 2026.

Record shown from December 2013. Our archive holds racing in Great Britain, Ireland and France from January 2005. Runs in other countries are not in it, and earlier runs are not available from our data provider. In-running comments are available from 2024 onward.