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Horse profile

Isomer (USA)

6yo gelding (at last run, Sep 2020) · Last trainer Andrew Balding · Last owner A M Balding
by Cape Blanco (IRE) out of Nimue (USA) (Speightstown)
30 runs · 15 courses · from May 2016
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 14 Sep 2020 — 2,228 days ago. Our archive can't say whether the horse is still in training.
Last run Sep 2020 · 9th of 10 3 wins · Ascot, Chelmsford City (AW) & Salisbury Last raced off OR 71
KTB Profile

Isomer (USA) is 3 from 30. Hasn't won since Sep 2018. Last raced off 71, 28lb below the career-high mark.

Based on 30 archived runs · updated 21 Oct 2026
KTB at a glance OR ↓ 28lb off peak
Official rating71↓ 28lb off peak
71 71–99

KTB Speed and Rating

KTB Speed

Best recent Speed 98 the best of the last 3 graded (A or B) runs · Newbury, 8 Jul 2020

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 →

Flat 26 figures · best 114C · median 87.5
GoingRunsBestMedianSince 21 Oct 2025
Standard (AW)9110B93—
Good698A87—
Good to Firm593A80—
Good to Soft3114C98—
Heavy288C84.5—
Firm1———
DistanceRunsBestMedianSince 21 Oct 2025
1m – 1m1f19114C93—
1m2f – 1m4f693A84—
6f – 7f1———

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 26 figures from 26 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 79A the best of the last 3 rated runs · Newbury, 8 Jul 2020 Official rating 71 at the last run, 14 Sep 2020

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 30 figures · best 106A · median 77
GoingRunsBestMedianSince 21 Oct 2025
Standard (AW)9100A77—
Good to Firm798A72—
Good6106A76—
Good to Soft5103A89—
Heavy266C63—
Firm1———
DistanceRunsBestMedianSince 21 Oct 2025
1m – 1m1f19106A76—
1m2f – 1m4f684B73—
6f – 7f592A83—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 30 figures from 30 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 8.2% of 364 runs since Jan 2008 (35 horses).

GoingRunsWinsSRvs sireThis horse
Firm2150%+41.80 from 1
Good to Firm66710.6%+2.41 from 7
Good8678.1%−0.11 from 6
Good to Soft3113.2%−50 from 5
Soft2015%−3.2—
Heavy800%−8.20 from 2
Standard (AW)151138.6%+0.41 from 9
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f300%−8.2—
6f – 7f80810%+1.81 from 5
1m – 1m1f11476.1%−2.12 from 19
1m2f – 1m4f118119.3%+1.10 from 6
1m5f – 2m3425.9%−2.3—
2m1f – 2m4f9111.1%+2.9—
2m5f – 3m6116.7%+8.5—

Flat and jumps together (all codes) · since Jan 2008 · as at 21 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Nimue (USA) (Speightstown)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Blanco (USA)40——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 9 1 11% −3.50
Good to Firm 7 1 14% −5.80
Good 6 1 17% +1.00
Good to Soft 5 0 0% −5.00
Heavy 2 0 0% −2.00
Firm 1 0 0% −1.00

ClassRunsWinsSR£1
Class 4 8 1 13% −6.80
Class 2 8 0 0% −8.00
Class 3 7 2 29% +5.50
Class 1 4 0 0% −4.00
Class 5 3 0 0% −3.00

CourseRunsWinsSR£1
Kempton (AW) 4 0 0% −4.00
Lingfield (AW) 4 0 0% −4.00
Newbury 3 0 0% −3.00
Newmarket 3 0 0% −3.00
Sandown 3 0 0% −3.00
Ascot 3 1 33% +4.00
Salisbury 2 1 50% −0.80
Bath 1 0 0% −1.00
Windsor 1 0 0% −1.00
Doncaster 1 0 0% −1.00
Ayr 1 0 0% −1.00
Chelmsford City (AW) 1 1 100% +4.50
York 1 0 0% −1.00
Haydock 1 0 0% −1.00
Goodwood 1 0 0% −1.00

DistanceRunsWinsSR£1
1m – 1m1f 19 2 11% −6.50
1m2f – 1m4f 6 0 0% −6.00
6f – 7f 5 1 20% −3.80

JockeyRunsWinsSR£1
Joshua Bryan 10 1 10% −4.50
Oisin Murphy 5 0 0% −5.00
Callum Hutchinson 3 0 0% −3.00
William Carver 3 0 0% −3.00
David Probert 3 1 33% −1.80
Jamie Spencer 2 0 0% −2.00
Miss Claudia Metaireau 1 0 0% −1.00
James Doyle 1 1 100% +6.00
P J McDonald 1 0 0% −1.00
Liam Keniry 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 20 2 10% −13.30
Cheekpieces 7 1 14% +0.00
Hood 3 0 0% −3.00

SeasonRunsWinsSR£1
2020 3 0 0% −3.00
2019 10 0 0% −10.00
2018 10 2 20% +2.50
2017 3 0 0% −3.00
2016 4 1 25% −2.80

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
14 Sep 20+58d Bath Visit attheraces.com Handicap Class 4 · 8f · Firm · 10 ran 9/10 2 8-10 7181A49A Callum Hutchinson 18/1
18 Jul 20+10d Newbury Each Way Extra At bet365 Handicap (Div 2) Class 5 · 8f · Good · 11 ran 7/11 ½ 8-11 7293A66A Callum Hutchinson 8/1
08 Jul 20+286d Newbury Oakley Coachbuilders Supreme Handicap Class 5 · 8f · Good To Soft · 11 ran 3/11 1¾ 8-11 7398A79A Callum Hutchinson 20/1
26 Sep 19+20d Newmarket Newmarket Challenge Whip Handicap Class 4 · 10f · Good · 6 ran 4/6 3½ 9-3 7768A75B Oisin Murphy 2/1F
06 Sep 19+29d Kempton (AW) 32red.com Apprentice Handicap Class 4 · 8f · Standard To Slow · 7 ran 5/7 ½ 9-8 7984A76A William Carver 11/4
08 Aug 19+24d Sandown Slug And Lettuce 2-4-1 Cocktails Amateur Riders' Handicap Class 4 · 10f · Good · 8 ran 3/8 2 10-7 7981B82A Miss Claudia Metaireau 6/1
15 Jul 19+75d Windsor Visit attheraces.com Handicap Class 4 · 10f · Good To Firm · 8 ran 7/8 2¼ 9-1 8293A70A Joshua Bryan 10/1
01 May 19+32d Ascot Manny Mercer Apprentice Handicap (Str) Class 4 · 8f · Good To Firm · 20 ran 5/20 nk 9-8 8671C98A Joshua Bryan 10/1
30 Mar 19+42d Doncaster Unibet Spring Mile Handicap (Str) Class 2 · 8f · Good · 16 ran 7/16 1¼ 8-9 8894C77A William Carver 20/1
16 Feb 19+15d Lingfield (AW) Betway Casino Handicap Class 3 · 10f · Standard · 6 ran 6/6 nk 8-11 8866B71B Joshua Bryan 9/4F
01 Feb 19+6d Lingfield (AW) Betway Apprentice Handicap Class 3 · 10f · Standard · 5 ran 2/5 hd 9-11 8787C84B Joshua Bryan 3/1
26 Jan 19+14d Lingfield (AW) Sun Racing No1 Racing Site Handicap Class 3 · 8f · Standard · 10 ran 7/10 2 8-11 87104B73A Joshua Bryan 10/1
12 Jan 19+54d Lingfield (AW) Sun Racing Top Tips And Previews Handicap Class 2 · 8f · Standard · 6 ran 4/6 ¾ 8-6 88105B74B William Carver 7/1
19 Nov 18+42d Kempton (AW) 100% Profit Boost At 32redsport.com Handicap Class 3 · 8f · Standard To Slow · 8 ran 4/8 1½ 9-6 9193A82A Joshua Bryan 3/1F
08 Oct 18+16d Kempton (AW) 32Red Optional Claiming Handicap Class 2 · 8f · Standard To Slow · 14 ran 2/14 ½ 8-13 87110B89A Joshua Bryan 7/1
22 Sep 18+15d Ayr William Hill Supporting The Fight Against Parkinson's Handicap Class 2 · 8f · Heavy · 12 ran 12/12 2¾ 9-5 9481A60A David Probert 20/1
07 Sep 18+21d Ascot Chapel Down Classified Stakes (Str) Class 3 · 8f · Good · 7 ran 1/7 9-3 9098A106A James Doyle 6/1
17 Aug 18+41d Newmarket Fly London Southend Airport To Dubrovnik Handicap Class 3 · 8f · Good To Soft · 13 ran 9/13 1¼ 9-9 9387C77A Joshua Bryan 12/1
07 Jul 18+16d Sandown Coral Challenge (handicap) Class 2 · 8f · Good To Firm · 15 ran 12/15 2½ 8-7 9380C69A Joshua Bryan 25/1
21 Jun 18+35d Chelmsford City (AW) Australian Gold Summer Handicap Class 3 · 8f · Standard · 9 ran 1/9 9-1 89109A100A Joshua Bryan 9/2
17 May 18+30d York Betfred Tv Hambleton Handicap Class 2 · 8f · Good To Firm · 10 ran 10/10 nse 8-8 9068A72A Oisin Murphy 7/1
17 Apr 18+25d Newmarket Plusvital Energene-Q10 Handicap Class 2 · 8f · Good To Soft · 19 ran 3/19 1¾ 8-13 90114C103A Oisin Murphy 25/1
23 Mar 18+174d Kempton (AW) 32Red On The App Store Novice Stakes Class 5 · 7f · Standard · 3 ran 2/3 1¾ 9-9 9577C77C Oisin Murphy 8/11F
30 Sep 17+44d Haydock 32Red.com Handicap Class 2 · 8f · Heavy · 13 ran 8/13 nk 9-8 9988C66C P J McDonald 25/1
17 Aug 17+41d Salisbury totepool Sovereign Stakes (Group 3) Class 1 · 8f · Good · 6 ran 6/6 5 8-8 9976A70B Liam Keniry 33/1
07 Jul 17+346d Sandown Ambant Gala Stakes (Listed) Class 1 · 10f · Good To Firm · 7 ran 7/7 10 8-9 9990A56A David Probert 14/1
26 Jul 16+17d Goodwood Qatar Vintage Stakes (Group 2) Class 1 · 7f · Good To Firm · 9 ran 6/9 2¼ 9-1 99—82A Jamie Spencer 10/1
09 Jul 16+21d Salisbury Bathwick Tyres British Stallion Studs EBF Maiden Stakes (Plus 10) Class 4 · 7f · Good To Firm · 9 ran 1/9 9-5 ——83A David Probert 1/5F
18 Jun 16+36d Ascot Chesham Stakes (Listed) Class 1 · 7f · Good To Soft · 13 ran 2/13 ½ 9-3 ——92A Jamie Spencer 25/1
13 May 16 Newbury Welcome To The Starlight Raceday Maiden Stakes (Plus 10) (Div 2) Class 4 · 6f · Good To Soft · 7 ran 2/7 ¾ 9-5 ——89A Oisin Murphy 9/2

Quick answers

How many races has Isomer (USA) won?
Isomer (USA) won 3 of 30 archived starts between 2016 and 2020, a strike rate of 10%. Placed 10 times in total (33.3% of starts).
Who trained Isomer (USA)?
Isomer (USA) was trained by Andrew Balding on the most recent run on record, at Bath on 14 September 2020.
Who is Isomer (USA)'s sire?
Isomer (USA) is by Cape Blanco (IRE) out of Nimue (USA), whose sire is Speightstown.
What going does Isomer (USA) prefer?
Isomer (USA) has the best record on good going: 1 win from 6 starts (16.7%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Isomer (USA)'s official rating?
The most recent official rating on record is 71, from the run on 14 September 2020. The highest on record is 99.
What is Isomer (USA)'s sire's record?
Cape Blanco (IRE)'s progeny in our archive have won 8.2% of 364 runs since Jan 2008 (35 horses), Flat and jumps together.
Who are Isomer (USA)'s siblings?
Out of Nimue (USA), Isomer (USA) has 1 other produce in our archive, 0 of them winners. As at Oct 2026.

Record shown from May 2016. 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.