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Horse profile

American Princess (IRE)

5yo mare (at last run, May 2010) · Last trainer M J Grassick · Last owner M C Grassick
by Desert Prince (IRE) out of American Queen (FR) (Fairy King)
15 runs · 11 courses · from Jul 2008
As at 4 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 13 May 2010 — 6,018 days ago. Our archive can't say whether the horse is still in training.
Last run May 2010 · 13th of 17 2 wins · Clonmel Last raced off OR 54
KTB Profile

American Princess (IRE) is 2 from 15. Hasn't won since May 2009.

Based on 15 archived runs · updated 4 Nov 2026

Progeny in our archive

Produce record

As a dam, American Princess (IRE) has 3 produce in the archive, 2 winners — most wins Jesse Evans (IRE) (11 wins).

The wins came over 1m6f–2m3f; the highest grade won is Grade 3 (Jesse Evans (IRE)).

ProduceRunsWinsWin tripsBest grade
Jesse Evans (IRE)51111m6f–2m3fGrade 3
Peculiar Genius (IRE)2522m—
Jessie's Dreamgirl (IRE)80——
Official rating54↓ 5lb off peak
54 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 58A the best of the last 3 rated runs · Curragh, 12 Oct 2009 Official rating 54 at the last run, 13 May 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 — 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 15 figures · best 76A · median 53
GoingRunsBestMedianSince 4 Nov 2025
Soft468A61—
Heavy376A73—
Good to Soft372A47—
Good to Firm240C37.5—
Good253A46—
Standard (AW)1———
DistanceRunsBestMedianSince 4 Nov 2025
1m – 1m1f1073A50—
1m2f – 1m4f376A72—
6f – 7f250C46—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 15 figures from 15 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
Desert Prince (IRE)

Progeny in our archive have won 9.1% of 2,734 runs since Jan 2008 (178 horses).

Weakest over 1m – 1m1f (all codes): 5.6% from 425.

GoingRunsWinsSRvs sireThis horse
Firm34617.6%+8.5—
Good to Firm486469.5%+0.40 from 2
Good692578.2%−0.90 from 2
Good to Soft328319.5%+0.41 from 3
Soft3863910.1%+10 from 4
Heavy168137.7%−1.41 from 3
Standard (AW)640568.8%−0.30 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f108109.3%+0.2—
6f – 7f456408.8%−0.30 from 2
1m – 1m1f425245.6%−3.50 from 10
1m2f – 1m4f5745910.3%+1.22 from 3
1m5f – 2m643629.6%+0.5—
2m1f – 2m4f3883910.1%+1—
2m5f – 3m1251310.4%+1.3—
Over 3m1516.7%−2.4—

Flat and jumps together (all codes) · since Jan 2008 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
American Queen (FR) (Fairy King)

7 siblings in the archive, 3 winners — best of them Shield (IRE) (5 wins).

The wins came over 7f–2m1f; the highest grade won is Class 2 (Centigrade (IRE)).

ProduceRunsWinsWin tripsBest grade
Shield (IRE)3152m–2m1f—
Centigrade (IRE)427f–1mClass 2
Oscar Dominguez (IRE)411m—
Thakeham (IRE)90——
Molly Pitcher (IRE)30——
Ballet Slippers (IRE)70——
Four Pence (IRE)30——

Record by conditions

GoingRunsWinsSR£1
Soft 4 0 0% −4.00
Heavy 3 1 33% +3.50
Good to Soft 3 1 33% +6.00
Good to Firm 2 0 0% −2.00
Good 2 0 0% −2.00
Standard (AW) 1 0 0% −1.00

CourseRunsWinsSR£1
Curragh 2 0 0% −2.00
Leopardstown 2 0 0% −2.00
Ballinrobe 2 0 0% −2.00
Clonmel 2 2 100% +13.50
Gowran Park 1 0 0% −1.00
Naas 1 0 0% −1.00
Tipperary 1 0 0% −1.00
Cork 1 0 0% −1.00
Dundalk (AW) 1 0 0% −1.00
Bellewstown 1 0 0% −1.00
Galway 1 0 0% −1.00

DistanceRunsWinsSR£1
1m – 1m1f 10 0 0% −10.00
1m2f – 1m4f 3 2 67% +12.50
6f – 7f 2 0 0% −2.00

JockeyRunsWinsSR£1
Danny Mullins 6 2 33% +9.50
N G McCullagh 3 0 0% −3.00
D C Byrne 1 0 0% −1.00
Ronan Whelan 1 0 0% −1.00
Gary Carroll 1 0 0% −1.00
Joseph O'Brien 1 0 0% −1.00
Fran Berry 1 0 0% −1.00
John Fahy 1 0 0% −1.00

SeasonRunsWinsSR£1
2010 2 0 0% −2.00
2009 9 2 22% +6.50
2008 4 0 0% −4.00

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 · 2 runs
13 May 10+26d Gowran Park Derrinstown Stud Apprentice Handicap (47-60) 1m1½f · Good To Firm · 17 ran 13/17 shd 9-4 5440C D C Byrne 14/1
17 Apr 10+187d Naas Derrinstown Stud Apprentice Handicap (47-60) 1m · Good · 17 ran 13/17 hd 9-6 5453A Ronan Whelan 12/1
2009 · 9 runs
12 Oct 09+32d Curragh Stephen Quirke Memorial Apprentice Handicap (50-80) 1m · Soft · 18 ran 7/18 1¼ 8-4 5658A Gary Carroll 10/1
10 Sep 09+25d Tipperary Derrinstown Stud Apprentice Series Handicap (47-65) 1m1f · Heavy · 16 ran 4/16 nk 9-5 5673A Danny Mullins 9/1
16 Aug 09+10d Curragh Www.racingacademy.ie Handicap (50-80) 1m2f · Soft To Heavy · 14 ran 9/14 shd 8-0 5753A Danny Mullins 25/1
06 Aug 09+16d Leopardstown Derrinstown Stud Apprentice Handicap (50-70) 1m · Good To Yielding · 19 ran 17/19 4 9-2 5840C Joseph O'Brien 12/1
21 Jul 09+36d Ballinrobe Yolanda O'gorman Memorial Handicap (50-70) 1m1f · Yielding To Soft · 15 ran 5/15 4 8-13 5964A Danny Mullins 7/1
15 Jun 09+25d Ballinrobe Derrinstown Stud Apprentice Handicap (47-65) 1m1f · Good To Firm · 15 ran 13/15 4 9-6 5935C Danny Mullins 9/2F
21 May 09+14d Clonmel Knockmealdown Handicap (47-65) 1m2f · Heavy · 14 ran 1/14 8-11 5376A Danny Mullins 11/2F
07 May 09+25d Clonmel New Club Stand Opening This Evening Handicap (47-65) 1m2f · Good To Yielding · 14 ran 1/14 8-7 4972A Danny Mullins 8/1
12 Apr 09+204d Cork Mitchelstown G.a.a. Handicap (47-65) 1m½f · Soft · 14 ran 3/14 4½ 8-12 4968A Fran Berry 12/1
2008 · 4 runs
20 Sep 08+23d Dundalk (AW) Castleblayney Handicap (45-60) 7f · Standard · 14 ran 9/14 ¾ 9-6 5542A N G McCullagh 14/1
28 Aug 08+30d Bellewstown Irish Stallion Farms EBF Maiden 1m · Good To Yielding · 8 ran 4/8 7 8-7 5547A John Fahy 33/1
29 Jul 08+13d Galway Tote EBF Maiden 7f · Yielding To Soft · 13 ran 10/13 7 9-0 5250C N G McCullagh 40/1
16 Jul 08 Leopardstown Foxrock Maiden 1m · Good · 12 ran 12/12 13 9-0 5239C N G McCullagh 12/1

Quick answers

How many races has American Princess won?
American Princess (IRE) won 2 of 15 archived starts between 2008 and 2010, a strike rate of 13.3%. Placed 4 times in total (26.7% of starts).
Who trained American Princess?
American Princess (IRE) was trained by M J Grassick on the most recent run on record, at Gowran Park on 13 May 2010.
Who is American Princess's sire?
American Princess (IRE) is by Desert Prince (IRE) out of American Queen (FR), whose sire is Fairy King.
What going does American Princess prefer?
American Princess (IRE) has the best record on heavy 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 American Princess's official rating?
The most recent official rating on record is 54, from the run on 13 May 2010. The highest on record is 59.
What is American Princess's sire's record?
Desert Prince (IRE)'s progeny in our archive have won 9.1% of 2,734 runs since Jan 2008 (178 horses), Flat and jumps together. Weakest over 1m – 1m1f (all codes): 5.6% from 425.
Who are American Princess's siblings?
Out of American Queen (FR), American Princess (IRE) has 7 other produce in our archive, 3 of them winners. Most wins: Shield (IRE) (5). Highest grade won: Class 2 (Centigrade (IRE)). The wins came over 7f–2m1f. As at Nov 2026.
Has American Princess produced winners?
As a dam, American Princess (IRE) has 3 produce in our archive, 2 of them winners. Most wins: Jesse Evans (IRE) (11). Highest grade won: Grade 3 (Jesse Evans (IRE)). The wins came over 1m6f–2m3f. As at Nov 2026.

Record shown from July 2008. 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.