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Horse profile

Millisle (IRE)

3yo filly (at last run, Oct 2020) · Last trainer Mrs John Harrington · Last owner Stonethorn Stud Farms Limited
by Starspangledbanner (AUS) out of Green Castle (IRE) (Indian Ridge)
11 runs · 7 courses · from Jul 2019
As at 14 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 10 Oct 2020 — 2,195 days ago. Our archive can't say whether the horse is still in training.
Last run Oct 2020 · 5th of 12 4 wins · 4 courses Beaten favourite LTO Last raced off OR 114
KTB Profile

Millisle (IRE) is 4 from 11, including a Group 1 win. The biggest win we hold: the Juddmonte Cheveley Park Stakes at Newmarket (Sep 2019). Hasn't won since Jul 2020. 3 of 6 starts on good or faster ground have ended in wins — 1 from 5 on softer.

Based on 11 archived runs · updated 14 Oct 2026

Progeny in our archive

Produce record

As a dam, Millisle (IRE) has 2 produce in the archive, 2 winners — most wins Confucius (IRE) (1 win).

The wins came over 6f–7f; the highest grade won is Class 5 (Alfareqa (GB)).

ProduceRunsWinsWin tripsBest grade
Confucius (IRE)616f—
Alfareqa (GB)517fClass 5
Official rating114↓ 1lb off peak
114 103–115

KTB Speed and Rating

KTB Speed

Best recent Speed 138 the best of the last 3 graded (A or B) runs · Naas, 22 Jul 2020

How fast the horse ran, as points against the day-corrected standard time for its course and distance: 100 is the median GB Class 4 handicap winner on that code; one point is 0.1% of the standard time. A, B or C is how much the day's card could tell us, not how good the run was.

Flat 11 figures · best 138A · median 105
GoingRunsBestMedianSince 14 Oct 2025
Good6138A102—
Soft3107A105—
Good to Soft2105A92.5—
DistanceRunsBestMedianSince 14 Oct 2025
6f – 7f7138A106—
Under 6f3105A97—
1m – 1m1f1———

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 11 figures from 11 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 118A the best of the last 3 rated runs · Naas, 22 Jul 2020 Official rating 114 at the last run, 10 Oct 2020

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.

Flat 11 figures · best 118A · median 98
GoingRunsBestMedianSince 14 Oct 2025
Good6118A102.5—
Soft3112A103—
Good to Soft294A93—
DistanceRunsBestMedianSince 14 Oct 2025
6f – 7f7118A108—
Under 6f3103B97—
1m – 1m1f1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 11 figures from 11 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 11.1% of 7,100 runs since Jan 2008 (658 horses).

Strongest at trips under 6f (all codes): 14.6% from 1,182.

GoingRunsWinsSRvs sireThis horse
Firm25312%+0.9—
Good to Firm1,03212412%+0.9—
Good1,72818310.6%−0.53 from 6
Good to Soft7689011.7%+0.60 from 2
Soft1,05712011.4%+0.31 from 3
Heavy2913311.3%+0.2—
Standard (AW)2,19923510.7%−0.4—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1,18217214.6%+3.52 from 3
6f – 7f3,54139211.1%02 from 7
1m – 1m1f1,3731359.8%−1.30 from 1
1m2f – 1m4f642609.3%−1.8—
1m5f – 2m266259.4%−1.7—
2m1f – 2m4f8344.8%−6.3—
2m5f – 3m1300%−11.1—

Flat and jumps together (all codes) · since Jan 2008 · as at 14 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Green Castle (IRE) (Indian Ridge)

11 siblings in the archive, 8 winners — best of them Chaplin Bay (IRE) (6 wins).

The wins came over 6f–2m; the highest grade won is Listed (Ithoughtitwasover (IRE)).

ProduceRunsWinsWin tripsBest grade
Chaplin Bay (IRE)7266f–7fClass 4
Ithoughtitwasover (IRE)1641m3½f–1m4fListed
Love Marmalade (IRE)5641m2f–1m4½fClass 3
Raven Ridge (IRE)4941m–1m2fClass 4
Fleur De Nuit (IRE)1731m6f–2m—
Greenisland (IRE)1127f–1mClass 2
Gino Severini (IRE)817f—
Glenmayne (IRE)911m—
Emerald Banner (IRE)100——
Green Chorus (IRE)80——
Highcastle (IRE)80——

Record by conditions

GoingRunsWinsSR£1
Good 6 3 50% +17.75
Soft 3 1 33% +3.50
Good to Soft 2 0 0% −2.00

ClassRunsWinsSR£1
Class 1 5 1 20% +12.00

CourseRunsWinsSR£1
Newmarket 3 1 33% +14.00
Curragh 2 1 50% +4.50
Naas 2 1 50% +1.25
Ascot 1 0 0% −1.00
Salisbury 1 0 0% −1.00
Down Royal 1 0 0% −1.00
Bellewstown 1 1 100% +2.50

DistanceRunsWinsSR£1
6f – 7f 7 2 29% +13.25
Under 6f 3 2 67% +7.00
1m – 1m1f 1 0 0% −1.00

JockeyRunsWinsSR£1
Shane Foley 8 3 38% +18.75
Tom Marquand 1 0 0% −1.00
Oisin Murphy 1 0 0% −1.00
Tom Madden 1 1 100% +2.50

SeasonRunsWinsSR£1
2020 6 1 17% −2.75
2019 5 3 60% +22.00

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 ORSpdKTB Jockey SP
10 Oct 20+62d Newmarket Dubai British EBF Boadicea Stakes (Fillies' And Mares' Listed) Class 1 · 6f · Soft · 12 ran 5/12 1¾ 9-5 11480A98A Shane Foley 2/1F
09 Aug 20+18d Curragh Rathasker Stud Phoenix Sprint Stakes (Group 3) 6f · Good To Yielding · 9 ran 6/9 1½ 9-5 114105A92A Shane Foley EvensF
22 Jul 20+18d Naas Yeomanstown Stud Ballyogan Stakes (Fillies Group 3) 6f · Good · 10 ran 1/10 9-5 111138A118A Shane Foley 9/4
04 Jul 20+15d Naas Coolmore Sioux Nation Lacken Stakes (Group 3) 6f · Yielding To Soft · 8 ran 2/8 2½ 9-5 114107A112A Shane Foley 9/4
19 Jun 20+12d Ascot Commonwealth Cup (Group 1) Class 1 · 6f · Good To Soft · 16 ran 5/16 1¾ 8-11 11580C94A Tom Marquand 8/1
07 Jun 20+253d Newmarket Qipco 1000 Guineas Stakes (Fillies' Group 1) Class 1 · 8f · Good · 15 ran 7/15 ¾ 9-0 11598C87A Oisin Murphy 4/1
28 Sep 19+23d Newmarket Juddmonte Cheveley Park Stakes (Group 1) (Fillies) Class 1 · 6f · Good · 11 ran 1/11 9-0 103106A108A Shane Foley 16/1
05 Sep 19+20d Salisbury Shadwell Dick Poole Fillies' Stakes (Group 3) Class 1 · 6f · Good · 10 ran 2/10 shd 9-0 103118B116A Shane Foley 9/2
16 Aug 19+21d Curragh Ryans Cleaning Event Specialist Curragh Stakes (Listed) 5f · Soft · 6 ran 1/6 8-12 —105A103B Shane Foley 11/2
26 Jul 19+22d Down Royal Magners Welcome To Ciderland Race 5f · Good · 7 ran 2/7 1¼ 9-2 —85A86A Shane Foley 1/2F
04 Jul 19 Bellewstown Irish Stallion Farms EBF Maiden (Plus 10) 5f · Good · 6 ran 1/6 8-11 —97A97B Tom Madden 5/2

Quick answers

How many races has Millisle (IRE) won?
Millisle (IRE) won 4 of 11 archived starts between 2019 and 2020, a strike rate of 36.4%. Placed 7 times in total (63.6% of starts).
Who trained Millisle (IRE)?
Millisle (IRE) was trained by Mrs John Harrington on the most recent run on record, at Newmarket on 10 October 2020.
Who is Millisle (IRE)'s sire?
Millisle (IRE) is by Starspangledbanner (AUS) out of Green Castle (IRE), whose sire is Indian Ridge.
What going does Millisle (IRE) prefer?
Millisle (IRE) has the best record on good going: 3 wins from 6 starts (50%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Millisle (IRE)'s official rating?
The most recent official rating on record is 114, from the run on 10 October 2020. The highest on record is 115.
What is Millisle (IRE)'s sire's record?
Starspangledbanner (AUS)'s progeny in our archive have won 11.1% of 7,100 runs since Jan 2008 (658 horses), Flat and jumps together. Strongest at trips under 6f (all codes): 14.6% from 1,182.
Who are Millisle (IRE)'s siblings?
Out of Green Castle (IRE), Millisle (IRE) has 11 other produce in our archive, 8 of them winners. Most wins: Chaplin Bay (IRE) (6). Highest grade won: Listed (Ithoughtitwasover (IRE)). The wins came over 6f–2m. As at Oct 2026.
Has Millisle (IRE) produced winners?
As a dam, Millisle (IRE) has 2 produce in our archive, 2 of them winners. Most wins: Confucius (IRE) (1). Highest grade won: Class 5 (Alfareqa (GB)). The wins came over 6f–7f. As at Oct 2026.

Record shown from July 2019. 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.