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Horse profile

Sir Rosco (GB)

3yo gelding (at last run, Sep 2014) · Last trainer Sir Michael Stoute · Last owner Sir Evelyn De Rothschild
by Sir Percy (GB) out of Rosacara (GB) (Green Desert)
5 runs · 3 courses · from May 2014
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 4 Sep 2014 — 4,445 days ago. Our archive can't say whether the horse is still in training.
Last run Sep 2014 · 5th of 5 Last raced off OR 74
KTB Profile

Sir Rosco (GB) is yet to win from 5 starts, though has placed once. Best effort: 3rd of 8 at Kempton (AW) (Aug 2014). Last raced off a career-high mark of 74.

Based on 5 archived runs · updated 5 Nov 2026

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 73A the best of the last 3 rated runs · Kempton (AW), 5 Aug 2014 Official rating 74 at the last run, 4 Sep 2014

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 — its best recent day. The KTB Rating on a racecard is a different reading of the same figures: the level the horse has been running to, an average of up to its last six runs with the latest counting most, so the two can differ. A, B or C on a run is how much known form was in that race. What this means →

Flat 5 figures · best 73A · median 67
GoingRunsBestMedianSince 5 Nov 2025
Standard (AW)373A67—
Good1———
Soft1———
DistanceRunsBestMedianSince 5 Nov 2025
1m2f – 1m4f473A67—
1m – 1m1f1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 5 figures from 5 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 11.2% of 7,153 runs since May 2011 (473 horses).

GoingRunsWinsSRvs sireThis horse
Firm52815.4%+4.2—
Good to Firm1,17614912.7%+1.5—
Good1,73619111%−0.20 from 1
Good to Soft908859.4%−1.8—
Soft8598610%−1.20 from 1
Heavy2052713.2%+2—
Standard (AW)2,21725211.4%+0.20 from 3
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f90910%−1.2—
6f – 7f967848.7%−2.5—
1m – 1m1f1,15211610.1%−1.10 from 1
1m2f – 1m4f2,51929911.9%+0.70 from 4
1m5f – 2m1,59219011.9%+0.7—
2m1f – 2m4f5156212%+0.8—
2m5f – 3m2482811.3%+0.1—
Over 3m701014.3%+3.1—

Flat and jumps together (all codes) · since May 2011 · as at 5 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Rosacara (GB) (Green Desert)

8 siblings in the archive, 5 winners — best of them After John (GB) (6 wins).

The wins came over 6f–1m6f; the highest grade won is Class 4 (Papa Meilland (GB)).

ProduceRunsWinsWin tripsBest grade
After John (GB)4366fClass 5
Kingarrick (GB)2827f–1m6fClass 5
Russelliana (GB)516fClass 5
Papa Meilland (GB)417fClass 4
Nathan Mayer (GB)611m2fClass 5
Georgia Peach (GB)70——
Alehandro (GB)110——
Ipsilante (GB)80——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 3 0 0% −3.00
Good 1 0 0% −1.00
Soft 1 0 0% −1.00

ClassRunsWinsSR£1
Class 5 3 0 0% −3.00
Class 4 1 0 0% −1.00
Class 6 1 0 0% −1.00

CourseRunsWinsSR£1
Kempton (AW) 2 0 0% −2.00
Windsor 2 0 0% −2.00
Wolverhampton (AW) 1 0 0% −1.00

DistanceRunsWinsSR£1
1m2f – 1m4f 4 0 0% −4.00
1m – 1m1f 1 0 0% −1.00

JockeyRunsWinsSR£1
Shane Kelly 2 0 0% −2.00
Kieren Fallon 1 0 0% −1.00
Ryan Moore 1 0 0% −1.00
Andrea Atzeni 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 ORKTB Jockey SP
2014 · 5 runs
04 Sep 14+30d Wolverhampton (AW) Monsterbet For Monster Deals Handicap Class 4 · 1m4f · Standard · 5 ran 5/5 16 9-1 7447C Kieren Fallon 5/1
05 Aug 14+36d Kempton (AW) Download The Betvictor Instabet App Median Auction Maiden Stakes Class 6 · 1m3f · Standard · 8 ran 3/8 2½ 9-3 7273A Shane Kelly 7/1
30 Jun 14+25d Windsor Unibet Best For Bets In Brazil Maiden Stakes Class 5 · 1m · Good · 11 ran 7/11 2¼ 9-5 —63A Shane Kelly 16/1
05 Jun 14+24d Kempton (AW) Follow BetVictorRacing On Twitter Maiden Stakes Class 5 · 1m4f · Standard · 12 ran 5/12 ¾ 8-13 —67A Ryan Moore 8/1
12 May 14 Windsor Cancer Research Uk, Cancerresearchuk.org Median Auction Maiden Stakes Class 5 · 1m2f · Soft · 15 ran 7/15 ½ 8-13 —67A Andrea Atzeni 14/1

Quick answers

How many races has Sir Rosco won?
Sir Rosco (GB) has yet to win, from 5 archived starts in 2014. Placed 1 time in total (20% of starts).
Who trained Sir Rosco?
Sir Rosco (GB) was trained by Sir Michael Stoute on the most recent run on record, at Wolverhampton (AW) on 4 September 2014.
Who is Sir Rosco's sire?
Sir Rosco (GB) is by Sir Percy (GB) out of Rosacara (GB), whose sire is Green Desert.
What is Sir Rosco's official rating?
The most recent official rating on record is 74, from the run on 4 September 2014. That is also the highest on record.
What is Sir Rosco's sire's record?
Sir Percy (GB)'s progeny in our archive have won 11.2% of 7,153 runs since May 2011 (473 horses), Flat and jumps together.
Who are Sir Rosco's siblings?
Out of Rosacara (GB), Sir Rosco (GB) has 8 other produce in our archive, 5 of them winners. Most wins: After John (GB) (6). Highest grade won: Class 4 (Papa Meilland (GB)). The wins came over 6f–1m6f. As at Nov 2026.

Record shown from May 2014. Our archive holds racing in Great Britain, Ireland and France from January 2005. Any runs before that, or in other countries, are not in it. In-running comments are available from 2024 onward.