Skip to content
Horse profile

Dissolution (GB)

3yo colt (at last run, Sep 2015) · Last trainer Sir Michael Stoute · Last owner K Abdullah
by New Approach (IRE) out of Portodora (USA) (Kingmambo)
9 runs · 6 courses · from Jul 2014
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 5 Sep 2015 — 4,063 days ago. Our archive can't say whether the horse is still in training.
Last run Sep 2015 · 8th of 11 2 wins · Newmarket & Goodwood Last raced off OR 90
KTB Profile

Dissolution (GB) is 2 from 9. Hasn't won since Apr 2015. Last raced off a career-high mark of 90.

Based on 9 archived runs · updated 21 Oct 2026
KTB at a glance OR at career high
Official rating90At career-high mark
90 80–90

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 90A the best of the last 3 rated runs · Ascot, 18 Jun 2015 Official rating 90 at the last run, 5 Sep 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 9 figures · best 99A · median 85
GoingRunsBestMedianSince 21 Oct 2025
Good to Firm490A85—
Good396A85—
Good to Soft299A89.5—
DistanceRunsBestMedianSince 21 Oct 2025
1m2f – 1m4f596A83—
1m – 1m1f299A92—
6f – 7f287A85.5—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 9 figures from 9 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 12.6% of 6,792 runs since Jan 2008 (685 horses).

Weakest over 2m5f – 3m (all codes): 7.9% from 101.

GoingRunsWinsSRvs sireThis horse
Firm27414.8%+2.2—
Good to Firm1,08516615.3%+2.71 from 4
Good1,63020012.3%−0.31 from 3
Good to Soft79911013.8%+1.20 from 2
Soft95810711.2%−1.4—
Heavy283289.9%−2.7—
Standard (AW)2,01024112%−0.6—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f9899.2%−3.4—
6f – 7f1,20715612.9%+0.30 from 2
1m – 1m1f1,66523414.1%+1.51 from 2
1m2f – 1m4f2,32430313%+0.41 from 5
1m5f – 2m1,06611310.6%−2—
2m1f – 2m4f3203310.3%−2.3—
2m5f – 3m10187.9%−4.7—
Over 3m1100%−12.6—

Flat and jumps together (all codes) · since Jan 2008 · as at 20 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Portodora (USA) (Kingmambo)

7 siblings in the archive, 6 winners — best of them Peril (GB) (4 wins).

The wins came over 6f–1m4f; the highest grade won is Listed (Set Piece (GB)).

Family form: Fenaroli (GB) finished 3rd of 8 at Kempton (AW), 7 Oct 2026.

ProduceRunsWinsWin tripsBest grade
Peril (GB)1147fClass 3
Set Piece (GB)631mListed
Alocasia (GB)936f–6½fListed
Tempera (GB)417f—
Keeper (GB)1911m4fClass 6
Harbour Approach (GB)1017fClass 5
Fenaroli (GB)10——

Record by conditions

GoingRunsWinsSR£1
Good to Firm 4 1 25% +1.00
Good 3 1 33% −1.33
Good to Soft 2 0 0% −2.00

ClassRunsWinsSR£1
Class 2 5 0 0% −5.00
Class 4 2 1 50% −0.33
Class 3 1 1 100% +4.00
Class 5 1 0 0% −1.00

CourseRunsWinsSR£1
Ascot 2 0 0% −2.00
Newmarket 2 1 50% +3.00
Newbury 2 0 0% −2.00
Goodwood 1 1 100% +0.67
Haydock 1 0 0% −1.00
York 1 0 0% −1.00

DistanceRunsWinsSR£1
1m2f – 1m4f 5 1 20% +0.00
1m – 1m1f 2 1 50% −0.33
6f – 7f 2 0 0% −2.00

JockeyRunsWinsSR£1
James Doyle 4 1 25% −2.33
Ryan Moore 3 1 33% +2.00
Pat Dobbs 1 0 0% −1.00
Andrea Atzeni 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 5 1 20% +0.00
Visor 4 1 25% −2.33

SeasonRunsWinsSR£1
2015 5 1 20% +0.00
2014 4 1 25% −2.33

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
05 Sep 15+58d Ascot Appletiser Handicap (Heritage Handicap) Class 2 · 12f · Good To Soft · 11 ran 8/11 ½ 8-9 9080A Pat Dobbs 8/1
09 Jul 15+21d Newmarket Unibet Handicap Class 2 · 10f · Good To Firm · 10 ran 6/10 1¼ 8-11 9079A Ryan Moore 4/1
18 Jun 15+33d Ascot King George V Stakes (Handicap) Class 2 · 12f · Good To Firm · 17 ran 8/17 ½ 8-12 9090A Ryan Moore 9/4F
16 May 15+30d Newbury Al Zubarah London Gold Cup (Open Handicap) Class 2 · 10f · Good · 13 ran 2/13 1¼ 8-3 8496A Andrea Atzeni 9/2
16 Apr 15+204d Newmarket A Sure Thing Mandarin Stakes (Handicap) Class 3 · 10f · Good To Firm · 9 ran 1/9 8-13 8283A Ryan Moore 4/1
24 Sep 14+20d Goodwood WaterAid EBF Stallions Maiden Stakes Class 4 · 9f · Good · 6 ran 1/6 9-5 8085B James Doyle 4/6F
04 Sep 14+13d Haydock Betfred Jack Berry MBE EBF Maiden Stakes Class 5 · 8f · Good To Soft · 14 ran 2/14 1½ 9-5 —99A James Doyle EvensF
22 Aug 14+35d York Sky Bet Are You In Convivial Maiden Stakes Class 2 · 7f · Good · 16 ran 5/16 1¼ 9-5 —84A James Doyle 15/8F
18 Jul 14 Newbury Highclere Thoroughbred Racing EBF Stallions Maiden Stakes (Str) Class 4 · 7f · Good To Firm · 14 ran 5/14 2 9-5 —87A James Doyle 10/1

Quick answers

How many races has Dissolution (GB) won?
Dissolution (GB) won 2 of 9 archived starts between 2014 and 2015, a strike rate of 22.2%. Placed 4 times in total (44.4% of starts).
Who trained Dissolution (GB)?
Dissolution (GB) was trained by Sir Michael Stoute on the most recent run on record, at Ascot on 5 September 2015.
Who is Dissolution (GB)'s sire?
Dissolution (GB) is by New Approach (IRE) out of Portodora (USA), whose sire is Kingmambo.
What going does Dissolution (GB) prefer?
Dissolution (GB) has the best record on good going: 1 win from 3 starts (33.3%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Dissolution (GB)'s official rating?
The most recent official rating on record is 90, from the run on 5 September 2015. That is also the highest on record.
What is Dissolution (GB)'s sire's record?
New Approach (IRE)'s progeny in our archive have won 12.6% of 6,792 runs since Jan 2008 (685 horses), Flat and jumps together. Weakest over 2m5f – 3m (all codes): 7.9% from 101.
Who are Dissolution (GB)'s siblings?
Out of Portodora (USA), Dissolution (GB) has 7 other produce in our archive, 6 of them winners. Most wins: Peril (GB) (4). Highest grade won: Listed (Set Piece (GB)). The wins came over 6f–1m4f. As at Oct 2026.

Record shown from July 2014. 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.