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Horse profile

Chemistry Master (GB)

7yo gelding (at last run, Oct 2015) · Last trainer Alexandra Dunn · Last owner Trebles Holford Simon Cullum
by Doyen (IRE) out of Elemental (GB) (Rudimentary)
20 runs · 13 courses · from Jun 2012
As at 27 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 29 Oct 2015 — 4,016 days ago. Our archive can't say whether the horse is still in training.
Last run Oct 2015 Won at Wincanton Last raced off OR 108
KTB Profile

Chemistry Master (GB) is 1 from 20, the win coming at Class 4 level. Hasn't won since Mar 2013. The win came on turf — 0 from 5 on the all-weather. Last raced off 108, 15lb below the career-high mark.

Based on 20 archived runs · updated 27 Oct 2026
KTB at a glance Won on turf, 0 on AW Win at Class 4 OR ↓ 15lb off peak
Official rating108↓ 15lb off peak
108 56–123

KTB Speed and Rating

KTB Speed

No KTB Speed figures for this horse. The engine scores GB and Irish racing from Oct 2016; runs elsewhere, or earlier, have no figure.

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 0 figures from 0 runs · a record, not a forecast

KTB Rating

Best recent KTB Rating (flat) 60A the best of the last 3 rated runs · Lingfield (AW), 6 Jun 2015 Official rating 56 at the last flat run, 6 Jun 2015

Best recent KTB Rating (jumps) 102C the best of the last 3 rated runs · Chepstow, 5 Apr 2014 Official rating 108 at the last jumps run, 29 Oct 2015

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 →

Flat 7 figures · best 82A · median 62
GoingRunsBestMedianSince 27 Oct 2025
Standard (AW)479A64.5—
Good282A67.5—
Good to Firm1———
DistanceRunsBestMedianSince 27 Oct 2025
1m2f – 1m4f579A60—
1m – 1m1f282A75.5—
Jumps 11 figures · best 134A · median 102
GoingRunsBestMedianSince 27 Oct 2025
Good4124A101.5—
Good to Soft3134A102—
Soft2106A104—
Standard (AW)1———
Heavy1———
DistanceRunsBestMedianSince 27 Oct 2025
2m1f – 2m4f6107C99—
1m5f – 2m5134A117—

Of 20 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 · 18 figures from 20 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

Progeny in our archive have won 11.5% of 7,355 runs since Jan 2008 (605 horses).

GoingRunsWinsSRvs sireThis horse
Firm2229.1%−2.4—
Good to Firm3504212%+0.50 from 1
Good2,23627312.2%+0.70 from 6
Good to Soft1,43419313.5%+21 from 4
Soft2,00621510.7%−0.80 from 3
Heavy761668.7%−2.80 from 1
Standard (AW)5465710.4%−1.10 from 5
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f7667.9%−3.6—
6f – 7f3603610%−1.5—
1m – 1m1f4114510.9%−0.60 from 2
1m2f – 1m4f5846010.3%−1.20 from 5
1m5f – 2m2,17925111.5%01 from 5
2m1f – 2m4f2,19826412%+0.50 from 8
2m5f – 3m1,28315812.3%+0.8—
Over 3m2642810.6%−0.9—

Flat and jumps together (all codes) · since Jan 2008 · as at 27 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Elemental (GB) (Rudimentary)

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

The wins came over 6f–1m2f; the highest grade won is Class 3 (Critical Path (IRE)).

ProduceRunsWinsWin tripsBest grade
Critical Path (IRE)1231m2fClass 3
Sovine (IRE)826fClass 5
Hippique (GB)917fClass 6
Earthwindorfire (GB)130——

Record by conditions

GoingRunsWinsSR£1
Good 6 0 0% −6.00
Standard (AW) 5 0 0% −5.00
Good to Soft 4 1 25% +13.00
Soft 3 0 0% −3.00
Heavy 1 0 0% −1.00
Good to Firm 1 0 0% −1.00

ClassRunsWinsSR£1
Class 4 6 1 17% +11.00
Class 3 6 0 0% −6.00
Class 6 4 0 0% −4.00
Class 5 4 0 0% −4.00

CourseRunsWinsSR£1
Exeter 3 0 0% −3.00
Stratford 2 0 0% −2.00
Chepstow 2 0 0% −2.00
Kempton (AW) 2 0 0% −2.00
Wincanton 2 1 50% +15.00
Wolverhampton (AW) 2 0 0% −2.00
Lingfield (AW) 1 0 0% −1.00
Fontwell 1 0 0% −1.00
Ffos Las 1 0 0% −1.00
Doncaster 1 0 0% −1.00
Epsom Downs 1 0 0% −1.00
Salisbury 1 0 0% −1.00
Nottingham 1 0 0% −1.00

DistanceRunsWinsSR£1
2m1f – 2m4f 8 0 0% −8.00
1m2f – 1m4f 5 0 0% −5.00
1m5f – 2m 5 1 20% +12.00
1m – 1m1f 2 0 0% −2.00

JockeyRunsWinsSR£1
Mr Martin McIntyre 4 0 0% −4.00
Ryan Mahon 4 1 25% +13.00
Adam Wedge 3 0 0% −3.00
Felix De Giles 2 0 0% −2.00
Robert Winston 2 0 0% −2.00
David Noonan 1 0 0% −1.00
Nicky Mackay 1 0 0% −1.00
Jimmy Fortune 1 0 0% −1.00
Dane O'Neill 1 0 0% −1.00
Luke Morris 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 10 0 0% −10.00
Tongue tie 10 1 10% +7.00

SeasonRunsWinsSR£1
2015 4 0 0% −4.00
2014 3 0 0% −3.00
2013 7 1 14% +10.00
2012 6 0 0% −6.00

TypeRunsWinsSR£1
Hurdle 11 1 9% +6.00
Flat 7 0 0% −7.00
Chase 2 0 0% −2.00

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 ORKTB Jockey SP
2015 · 4 runs
29 Oct 15+145d Stratford Charlie Longsdon Racing Novices' Limited Handicap Chase Class 4 · 17f · Soft · 9 ran PU/9 — 10-10 108— Adam Wedge 50/1
06 Jun 15+67d Lingfield (AW) burridge.co.uk Amateur Riders' Handicap (AW) Class 6 · 10f · Standard · 14 ran 9/14 1 10-9 5660A David Noonan 25/1
31 Mar 15+22d Exeter City Of Exeter Challenge Cup Handicap Hurdle Class 3 · 18.5f · Good · 9 ran 6/9 7 11-1 11495C Adam Wedge 33/1
09 Mar 15+338d Stratford Warwickshire And Northamptonshire Air Ambulance Handicap Hurdle Class 3 · 16.5f · Good To Soft · 15 ran 15/15 ¾ 11-6 11996C Adam Wedge 66/1
2014 · 3 runs
05 Apr 14+21d Chepstow Unibet - By Players For Players Handicap Hurdle Class 4 · 16f · Soft · 13 ran 11/13 ½ 11-11 119102C Felix De Giles 7/1
15 Mar 14+27d Fontwell 32Red Tomb Raider II Slot Handicap Hurdle Class 3 · 17.5f · Good To Soft · 7 ran 4/7 8 11-5 122102A Felix De Giles 8/1
16 Feb 14+62d Kempton (AW) Kempton Park Chase Day 22.02.14 'Jumpers' Bumper' NH Flat Race (Div 2) Class 4 · 18f · Standard To Slow · 12 ran 10/12 10 10-6 —88A Mr Martin McIntyre 8/1
2013 · 7 runs
16 Dec 13+33d Ffos Las Pennant Walters Handicap Hurdle Class 3 · 16f · Heavy · 7 ran 3/7 7 11-0 123117A Mr Martin McIntyre 4/1
13 Nov 13+17d Exeter Thank You Sue Tucker Handicap Hurdle Class 3 · 17f · Soft · 10 ran 5/10 1½ 10-9 123106A Mr Martin McIntyre 7/1
27 Oct 13+208d Wincanton Countryside Alliance Handicap Hurdle Class 4 · 15.5f · Good · 10 ran 3/10 2¼ 11-2 120124A Mr Martin McIntyre 8/1
02 Apr 13+26d Exeter Download The Free Racing UK App Handicap Hurdle Class 3 · 18.5f · Good · 15 ran 6/15 4½ 11-4 120107C Ryan Mahon 11/1
07 Mar 13+12d Wincanton Bathwick Tyres Poole Maiden Hurdle (Div 1) Class 4 · 15.5f · Good To Soft · 15 ran 1/15 10-12 —134A Ryan Mahon 16/1
23 Feb 13+19d Chepstow 32Red Maiden Hurdle Class 4 · 19.5f · Good To Soft · 15 ran UR/15 — 11-0 —— Ryan Mahon 25/1
04 Feb 13+135d Doncaster 32 Bonus At 32red.com Maiden Hurdle Class 5 · 19.5f · Good · 21 ran 9/21 1½ 11-1 —96C Ryan Mahon 66/1
2012 · 6 runs
22 Sep 12+25d Wolverhampton (AW) 32Red Supporting British Racing Handicap Class 6 · 12f · Standard To Fast · 8 ran 7/8 8 9-8 6149A Nicky Mackay 11/2
28 Aug 12+21d Epsom Downs Happy Retirement Howard Wright Handicap Class 5 · 12f · Good · 10 ran 10/10 4 9-3 6353C Jimmy Fortune 20/1
07 Aug 12+22d Kempton (AW) Betfair Supporting Grassroots Racing Handicap Class 6 · 12f · Standard To Slow · 10 ran 4/10 nk 9-13 6479A Dane O'Neill 11/2
16 Jul 12+15d Wolverhampton (AW) Holiday Inn Wolverhampton Median Auction Maiden Stakes Class 6 · 9.5f · Standard · 12 ran 7/12 ¾ 9-12 —69A Luke Morris 10/1
01 Jul 12+17d Salisbury Goldring Security Services Maiden Stakes (Div 2) Class 5 · 10f · Good To Firm · 8 ran 7/8 3¼ 9-11 —62A Robert Winston 11/1
14 Jun 12 Nottingham Carling Zest Maiden Stakes Class 5 · 8.5f · Good · 13 ran 6/13 1 9-11 —82A Robert Winston 50/1

Quick answers

How many races has Chemistry Master won?
Chemistry Master (GB) won 1 of 20 archived starts between 2012 and 2015, a strike rate of 5%. Placed 2 times in total (10% of starts).
Who trained Chemistry Master?
Chemistry Master (GB) was trained by Alexandra Dunn on the most recent run on record, at Stratford on 29 October 2015.
Who is Chemistry Master's sire?
Chemistry Master (GB) is by Doyen (IRE) out of Elemental (GB), whose sire is Rudimentary.
What going does Chemistry Master prefer?
Chemistry Master (GB) has the best record on good to soft going: 1 win from 4 starts (25%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Chemistry Master's official rating?
The most recent official rating on record is 108, from the run on 29 October 2015. The highest on record is 123.
What is Chemistry Master's sire's record?
Doyen (IRE)'s progeny in our archive have won 11.5% of 7,355 runs since Jan 2008 (605 horses), Flat and jumps together.
Who are Chemistry Master's siblings?
Out of Elemental (GB), Chemistry Master (GB) has 4 other produce in our archive, 3 of them winners. Most wins: Critical Path (IRE) (3). Highest grade won: Class 3 (Critical Path (IRE)). The wins came over 6f–1m2f. As at Oct 2026.

Record shown from June 2012. 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.