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Horse profile

Tudor Princess (GB)

3yo filly (at last run, Aug 2010) · Last trainer William Muir · Last owner Usk Valley Stud
by King's Best (USA) out of Santorini (USA) (Spinning World)
8 runs · 6 courses · from Sep 2009
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 5 Aug 2010 — 5,928 days ago. Our archive can't say whether the horse is still in training.
Last run Aug 2010 · 6th of 9 Last raced off OR 49
KTB Profile

Tudor Princess (GB) is yet to win from 8 starts. Best effort: 4th of 12 at Leicester (Jul 2010). Last raced off 49, 10lb below the career-high mark.

Based on 8 archived runs · updated 28 Oct 2026
KTB at a glance OR ↓ 10lb off peak
Official rating49↓ 10lb off peak
49 49–59

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 62A the best of the last 3 rated runs · Leicester, 28 Jul 2010 Official rating 49 at the last run, 5 Aug 2010

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 62A · median 53
GoingRunsBestMedianSince 28 Oct 2025
Good to Firm562A50—
Firm1———
Standard (AW)1———
Good to Soft1———
DistanceRunsBestMedianSince 28 Oct 2025
6f – 7f662A57.5—
1m – 1m1f247A45.5—

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
King's Best (USA)

Progeny in our archive have won 9.9% of 7,763 runs since Jan 2008 (574 horses).

Weakest over 2m5f – 3m (all codes): 6.8% from 249.

GoingRunsWinsSRvs sireThis horse
Firm701420%+10.10 from 1
Good to Firm1,1541018.8%−1.10 from 5
Good1,8891678.8%−1.1—
Good to Soft95211612.2%+2.30 from 1
Soft1,21612810.5%+0.6—
Heavy427399.1%−0.8—
Standard (AW)2,0532019.8%−0.10 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f156149%−0.9—
6f – 7f1,6051489.2%−0.70 from 6
1m – 1m1f1,70217910.5%+0.60 from 2
1m2f – 1m4f1,90119610.3%+0.4—
1m5f – 2m1,3781299.4%−0.5—
2m1f – 2m4f7187810.9%+1—
2m5f – 3m249176.8%−3.1—
Over 3m54611.1%+1.2—

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
Santorini (USA) (Spinning World)

5 siblings in the archive, 4 winners — best of them Methaaly (IRE) (18 wins).

The wins came over 5f–1m2f; the highest grade won is Class 4 (Methaaly (IRE)).

ProduceRunsWinsWin tripsBest grade
Methaaly (IRE)175185f–7fClass 4
Saint Irene (GB)3121mClass 5
South Wales (GB)921m–1m2fClass 5
Park Valley Prince (GB)1017fClass 6
Fancourt (GB)10——

Record by conditions

GoingRunsWinsSR£1
Good to Firm 5 0 0% −5.00
Firm 1 0 0% −1.00
Standard (AW) 1 0 0% −1.00
Good to Soft 1 0 0% −1.00

ClassRunsWinsSR£1
Class 6 5 0 0% −5.00
Class 5 2 0 0% −2.00
Class 4 1 0 0% −1.00

CourseRunsWinsSR£1
Yarmouth 3 0 0% −3.00
Bath 1 0 0% −1.00
Leicester 1 0 0% −1.00
Salisbury 1 0 0% −1.00
Lingfield (AW) 1 0 0% −1.00
Folkestone 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 6 0 0% −6.00
1m – 1m1f 2 0 0% −2.00

JockeyRunsWinsSR£1
Franny Norton 1 0 0% −1.00
Tadhg O'Shea 1 0 0% −1.00
Richard Mullen 1 0 0% −1.00
James Rogers 1 0 0% −1.00
Chris Catlin 1 0 0% −1.00
Hayley Turner 1 0 0% −1.00
Martin Dwyer 1 0 0% −1.00
Seb Sanders 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 7 0 0% −7.00
Cheekpieces 1 0 0% −1.00

SeasonRunsWinsSR£1
2010 6 0 0% −6.00
2009 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
2010 · 6 runs
05 Aug 10+8d Bath Bathwick Tyres Swindon Handicap Class 6 · 8f · Firm · 9 ran 6/9 3 8-10 4947A Franny Norton 7/1
28 Jul 10+9d Leicester Shangton Selling Stakes Class 6 · 7f · Good To Firm · 12 ran 4/12 3¼ 8-7 4962A Tadhg O'Shea 40/1
19 Jul 10+22d Yarmouth Royce Burrows - A Lifetime In Racing Award Handicap Class 6 · 6f · Good To Firm · 13 ran 8/13 2½ 8-12 5250A Richard Mullen 16/1
27 Jun 10+26d Salisbury Axminster Carpets Racing Excellence Apprentice Handicap (Whips Shall Be Carried But Not Used) Class 6 · 8f · Good To Firm · 11 ran 10/11 10 8-13 5744C James Rogers 20/1
01 Jun 10+32d Yarmouth Bennettsonline.co.uk Handicap Class 6 · 7f · Good To Firm · 11 ran 11/11 11 9-3 5944C Chris Catlin 16/1
30 Apr 10+206d Lingfield (AW) 66 Free Bet At bluesquare.com Maiden Stakes (Div 2) Class 5 · 7f · Standard · 12 ran 7/12 1¾ 8-7 5956A Hayley Turner 33/1
2009 · 2 runs
06 Oct 09+21d Folkestone Hythe Maiden Fillies' Stakes Class 5 · 6f · Good To Soft · 10 ran 7/10 shd 9-0 —59A Martin Dwyer 13/2
15 Sep 09 Yarmouth E.B.F./ Buy A Racing Post Yearling Bonus Candidate Maiden Fillies' Stakes Class 4 · 6f · Good To Firm · 11 ran 7/11 1½ 9-0 —61A Seb Sanders 20/1

Quick answers

How many races has Tudor Princess won?
Tudor Princess (GB) has yet to win, from 8 archived starts between 2009 and 2010.
Who trained Tudor Princess?
Tudor Princess (GB) was trained by William Muir on the most recent run on record, at Bath on 5 August 2010.
Who is Tudor Princess's sire?
Tudor Princess (GB) is by King's Best (USA) out of Santorini (USA), whose sire is Spinning World.
What is Tudor Princess's official rating?
The most recent official rating on record is 49, from the run on 5 August 2010. The highest on record is 59.
What is Tudor Princess's sire's record?
King's Best (USA)'s progeny in our archive have won 9.9% of 7,763 runs since Jan 2008 (574 horses), Flat and jumps together. Weakest over 2m5f – 3m (all codes): 6.8% from 249.
Who are Tudor Princess's siblings?
Out of Santorini (USA), Tudor Princess (GB) has 5 other produce in our archive, 4 of them winners. Most wins: Methaaly (IRE) (18). Highest grade won: Class 4 (Methaaly (IRE)). The wins came over 5f–1m2f. As at Oct 2026.

Record shown from September 2009. 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.