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Horse profile

Thomasgainsborough (IRE)

3yo colt (at last run, Sep 2012) · Last trainer A P O'Brien · Last owner Derrick Smith Michael Tabor Mrs John Magnier
by Dansili (GB) out of Briolette (IRE) (Sadler's Wells)
8 runs · 8 courses · from Oct 2011
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 24 Sep 2012 — 5,147 days ago. Our archive can't say whether the horse is still in training.
Last run Sep 2012 · 10th of 13 Won at Leopardstown Last raced off OR 92
KTB Profile

Thomasgainsborough (IRE) is 1 from 8. Hasn't won since Oct 2011. Last raced off a career-high mark of 92.

Based on 8 archived runs · updated 28 Oct 2026
KTB at a glance OR at career high
Official rating92At career-high mark
92 89–92

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 87B the best of the last 3 rated runs · Killarney, 15 May 2012 Official rating 92 at the last run, 24 Sep 2012

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 8 figures · best 98A · median 85
GoingRunsBestMedianSince 28 Oct 2025
Heavy483A79.5—
Soft298A95.5—
Good to Soft1———
Standard (AW)1———
DistanceRunsBestMedianSince 28 Oct 2025
1m – 1m1f598A91—
1m2f – 1m4f278B75.5—
1m5f – 2m1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 8 figures from 8 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
Dansili (GB)

Progeny in our archive have won 13.7% of 11,842 runs since Jan 2008 (983 horses).

Strongest on firm going: 16.8% from 101. Weakest on heavy going: 7.9% from 428. Weakest over 2m5f – 3m (all codes): 9.1% from 209.

GoingRunsWinsSRvs sireThis horse
Firm1011716.8%+3.1—
Good to Firm2,10728613.6%−0.1—
Good2,96642414.3%+0.6—
Good to Soft1,32416512.5%−1.20 from 1
Soft1,41316011.3%−2.41 from 2
Heavy428347.9%−5.80 from 4
Standard (AW)3,50153815.4%+1.70 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f2533212.6%−1.1—
6f – 7f2,30929112.6%−1.1—
1m – 1m1f2,88242714.8%+1.11 from 5
1m2f – 1m4f3,79655814.7%+10 from 2
1m5f – 2m1,68221813%−0.70 from 1
2m1f – 2m4f6837611.1%−2.6—
2m5f – 3m209199.1%−4.6—
Over 3m28310.7%−3—

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
Briolette (IRE) (Sadler's Wells)

7 siblings in the archive, 5 winners — best of them Point North (IRE) (10 wins).

The wins came over 5f–1m5½f; the highest grade won is Class 4 (Point North (IRE)).

ProduceRunsWinsWin tripsBest grade
Point North (IRE)64105f–1m½fClass 4
Livvys Dream (IRE)1441m–1m1½fClass 4
Melabi (IRE)5036f–1m4fClass 5
Diamond Reflection (IRE)4421m1½f–1m2fClass 6
Send Up (IRE)721m4f–1m5½fClass 6
Tawny Coster (IRE)70——
Haida Gwaii (IRE)60——

Record by conditions

GoingRunsWinsSR£1
Heavy 4 0 0% −4.00
Soft 2 1 50% +4.50
Good to Soft 1 0 0% −1.00
Standard (AW) 1 0 0% −1.00

ClassRunsWinsSR£1
Class 2 1 0 0% −1.00

CourseRunsWinsSR£1
Fairyhouse 1 0 0% −1.00
Down Royal 1 0 0% −1.00
Killarney 1 0 0% −1.00
Epsom Downs 1 0 0% −1.00
Dundalk (AW) 1 0 0% −1.00
Leopardstown 1 1 100% +5.50
Navan 1 0 0% −1.00
Tipperary 1 0 0% −1.00

DistanceRunsWinsSR£1
1m – 1m1f 5 1 20% +1.50
1m2f – 1m4f 2 0 0% −2.00
1m5f – 2m 1 0 0% −1.00

JockeyRunsWinsSR£1
Seamie Heffernan 3 1 33% +3.50
Joseph O'Brien 3 0 0% −3.00
David McCabe 2 0 0% −2.00

SeasonRunsWinsSR£1
2012 5 0 0% −5.00
2011 3 1 33% +3.50

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
2012 · 5 runs
24 Sep 12+93d Fairyhouse Tattersalls Ireland November Yearling Sale Handicap 12f · Heavy · 13 ran 10/13 2 9-1 9273C Seamie Heffernan 6/1
23 Jun 12+39d Down Royal Magners Ulster Derby (Premier Handicap) 13f · Soft To Heavy · 9 ran 4/9 nk 8-4 9081A David McCabe 9/2J
15 May 12+20d Killarney Dunloe Handicap (60-90) 8.5f · Good To Yielding · 6 ran 4/6 ¾ 9-12 9087B Joseph O'Brien 9/4F
25 Apr 12+14d Epsom Downs Investec Derby Trial (conditions Race) Class 2 · 10f · Heavy · 6 ran 4/6 2¾ 9-1 9078B Joseph O'Brien 11/4
11 Apr 12+164d Dundalk (AW) Bookings At dundalkstadium.com Handicap 8f · Standard · 8 ran 3/8 1¼ 9-10 8991A Joseph O'Brien 4/1
2011 · 3 runs
30 Oct 11+11d Leopardstown Irish Stallion Farms E.B.F. (C&G) Maiden 8f · Yielding · 19 ran 1/19 9-0 —98A Seamie Heffernan 11/2
19 Oct 11+17d Navan www.thetote.com/mobile Maiden 8f · Soft · 14 ran 3/14 2¼ 9-5 —93A Seamie Heffernan 5/4F
02 Oct 11 Tipperary Athassel House Stud E.B.F. Maiden 9f · Heavy · 10 ran 5/10 ¾ 9-5 —83A David McCabe 2/1F

Quick answers

How many races has Thomasgainsborough won?
Thomasgainsborough (IRE) won 1 of 8 archived starts between 2011 and 2012, a strike rate of 12.5%. Placed 3 times in total (37.5% of starts).
Who trained Thomasgainsborough?
Thomasgainsborough (IRE) was trained by A P O'Brien on the most recent run on record, at Fairyhouse on 24 September 2012.
Who is Thomasgainsborough's sire?
Thomasgainsborough (IRE) is by Dansili (GB) out of Briolette (IRE), whose sire is Sadler's Wells.
What is Thomasgainsborough's official rating?
The most recent official rating on record is 92, from the run on 24 September 2012. That is also the highest on record.
What is Thomasgainsborough's sire's record?
Dansili (GB)'s progeny in our archive have won 13.7% of 11,842 runs since Jan 2008 (983 horses), Flat and jumps together. Strongest on firm going: 16.8% from 101. Weakest on heavy going: 7.9% from 428. Weakest over 2m5f – 3m (all codes): 9.1% from 209.
Who are Thomasgainsborough's siblings?
Out of Briolette (IRE), Thomasgainsborough (IRE) has 7 other produce in our archive, 5 of them winners. Most wins: Point North (IRE) (10). Highest grade won: Class 4 (Point North (IRE)). The wins came over 5f–1m5½f. As at Oct 2026.

Record shown from October 2011. 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.