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Horse profile

Marylebone (GB)

6yo gelding (at last run, Sep 2019) · Last trainer Joseph Patrick O'Brien · Last owner Mrs A M Obrien
by Shamardal (USA) out of Mary Boleyn (IRE) (King's Best)
25 runs · 19 courses · from Oct 2015
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 11 Sep 2019 — 2,597 days ago. Our archive can't say whether the horse is still in training.
Last run Sep 2019 · 7th of 10 Won at Kempton (AW) Last raced off OR 45
KTB Profile

Marylebone (GB) is 1 from 25, the win coming at Class 4 level. Hasn't won since Nov 2015. The win came on the all-weather — 0 from 17 on turf. Last raced off 45, 37lb below the career-high mark.

Based on 25 archived runs · updated 21 Oct 2026
KTB at a glance Won on AW, 0 on turf Win at Class 4 OR ↓ 37lb off peak
Official rating45↓ 37lb off peak
45 43–82

KTB Speed and Rating

KTB Speed

Best recent Speed 79 the best of the last 3 graded (A or B) runs · Killarney, 19 Jul 2019

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. What this means →

Flat 21 figures · best 107C · median 74
GoingRunsBestMedianSince 21 Oct 2025
Good6107C76.5—
Good to Firm690C73.5—
Standard (AW)6101A68—
Soft376C68—
DistanceRunsBestMedianSince 21 Oct 2025
6f – 7f10101A74—
1m – 1m1f8107C74—
1m2f – 1m4f277C67.5—
1m5f – 2m1———

Of 22 runs looked at, 1 has no figure: no standard for this course, surface and code on the window (1).

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 21 figures from 22 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 58A the best of the last 3 rated runs · Leopardstown, 15 Aug 2019 Official rating 45 at the last run, 11 Sep 2019

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 25 figures · best 87A · median 53
GoingRunsBestMedianSince 21 Oct 2025
Standard (AW)887A58—
Good to Firm770A59—
Good675A50—
Soft349A48—
Good to Soft1———
DistanceRunsBestMedianSince 21 Oct 2025
6f – 7f1387A58—
1m – 1m1f975A50—
1m2f – 1m4f259C56—
1m5f – 2m1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 25 figures from 25 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 14.8% of 10,411 runs since Jan 2008 (1,008 horses).

Weakest on soft going: 11.7% from 1,287. Weakest over 1m5f – 2m (all codes): 9.3% from 475.

GoingRunsWinsSRvs sireThis horse
Firm571119.3%+4.5—
Good to Firm1,98130615.4%+0.60 from 7
Good2,38733514%−0.80 from 6
Good to Soft1,01312412.2%−2.60 from 1
Soft1,28715111.7%−3.10 from 3
Heavy3704512.2%−2.6—
Standard (AW)3,31556417%+2.21 from 8
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f5838714.9%+0.1—
6f – 7f4,07359314.6%−0.21 from 13
1m – 1m1f2,98547615.9%+1.10 from 9
1m2f – 1m4f2,07331315.1%+0.30 from 2
1m5f – 2m475449.3%−5.50 from 1
2m1f – 2m4f1802111.7%−3.1—
2m5f – 3m3825.3%−9.5—
Over 3m400%−14.8—

Flat and jumps together (all codes) · since Jan 2008 · as at 21 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Mary Boleyn (IRE) (King's Best)

7 siblings in the archive, 4 winners — best of them Clotilde (GB) (3 wins).

The wins came over 1m–1m4f; the highest grade won is Class 3 (Clotilde (GB)).

ProduceRunsWinsWin tripsBest grade
Clotilde (GB)1131mClass 3
Waxing Gibbous (GB)911m4fClass 5
What An Angel (GB)1511mClass 5
Global Pass (GB)2211m—
Abouttimeyoutoldme (GB)210——
Watching (IRE)40——
A Boy Named Mary (IRE)70——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 8 1 13% −2.00
Good to Firm 7 0 0% −7.00
Good 6 0 0% −6.00
Soft 3 0 0% −3.00
Good to Soft 1 0 0% −1.00

ClassRunsWinsSR£1
Class 4 9 1 11% −3.00
Class 5 3 0 0% −3.00
Class 6 3 0 0% −3.00

CourseRunsWinsSR£1
Kempton (AW) 3 1 33% +3.00
Gowran Park 2 0 0% −2.00
Newcastle (AW) 2 0 0% −2.00
Wetherby 2 0 0% −2.00
Doncaster 2 0 0% −2.00
Laytown (AW) 1 0 0% −1.00
Leopardstown 1 0 0% −1.00
Killarney 1 0 0% −1.00
Fairyhouse 1 0 0% −1.00
Bellewstown 1 0 0% −1.00
Tipperary 1 0 0% −1.00
Curragh 1 0 0% −1.00
Dundalk (AW) 1 0 0% −1.00
Musselburgh 1 0 0% −1.00
Beverley 1 0 0% −1.00
Wolverhampton (AW) 1 0 0% −1.00
Haydock 1 0 0% −1.00
Ascot 1 0 0% −1.00
Leicester 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 13 1 8% −7.00
1m – 1m1f 9 0 0% −9.00
1m2f – 1m4f 2 0 0% −2.00
1m5f – 2m 1 0 0% −1.00

JockeyRunsWinsSR£1
Alan Persse 5 0 0% −5.00
Shane Crosse 2 0 0% −2.00
Andrew Elliott 2 0 0% −2.00
Stevie Donohoe 2 0 0% −2.00
Richard Kingscote 2 0 0% −2.00
Hugh Horgan 1 0 0% −1.00
Donnacha O'Brien 1 0 0% −1.00
Wayne Lordan 1 0 0% −1.00
Jamie Gormley 1 0 0% −1.00
David Allan 1 0 0% −1.00
Ben Curtis 1 0 0% −1.00
Paddy Mathers 1 0 0% −1.00
Jason Watson 1 0 0% −1.00
Pat Cosgrave 1 0 0% −1.00
Dougie Costello 1 0 0% −1.00
Joe Fanning 1 0 0% −1.00
Daniel Tudhope 1 1 100% +5.00

HeadgearRunsWinsSR£1
None 15 1 7% −9.00
Tongue tie 6 0 0% −6.00
Tongue tie + blinkers 3 0 0% −3.00
Tongue tie + cheekpieces 1 0 0% −1.00

SeasonRunsWinsSR£1
2019 9 0 0% −9.00
2018 10 0 0% −10.00
2017 3 0 0% −3.00
2016 1 0 0% −1.00
2015 2 1 50% +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 ORSpdKTB Jockey SP
11 Sep 19+27d Laytown (AW) Scotch Hall Shopping Centre Claiming Race 7f · Standard · 10 ran 7/10 3¼ 9-12 45—53A Shane Crosse 12/1
15 Aug 19+1d Leopardstown Manguard Plus Claiming Race 7f · Good · 14 ran 8/14 ½ 8-6 4674C58A Alan Persse 50/1
14 Aug 19+26d Gowran Park Community Day September 21st Claiming Race 9.5f · Yielding To Soft · 15 ran 9/15 1¼ 8-5 4676C44A Hugh Horgan 33/1
19 Jul 19+5d Killarney Tote Claiming Race 8f · Good · 10 ran 6/10 2½ 8-8 4779A50A Alan Persse 7/1
14 Jul 19+11d Fairyhouse Boyne Valley Racing Weekend Handicap (45-65) (Div 1) 7f · Good · 18 ran 14/18 nse 8-6 4774C50A Alan Persse 9/1
03 Jul 19+17d Bellewstown Tote Handicap (45-65) (Div 2) 8f · Good · 15 ran 11/15 2½ 9-0 4872C50A Donnacha O'Brien 8/1
16 Jun 19+12d Gowran Park BetVictor Guaranteed Run For Your Money Handicap (45-65) (Div 2) 8f · Good · 16 ran 2/16 1½ 8-1 45107C75A Alan Persse 14/1
04 Jun 19+9d Tipperary Welcome To Tipperary Races Claiming Race 7.5f · Yielding To Soft · 11 ran 6/11 1¾ 9-2 4336A49A Shane Crosse 25/1
26 May 19+200d Curragh Hanlon Concrete Handicap (45-70) 6f · Good To Firm · 26 ran 23/26 ½ 8-4 4570C34A Wayne Lordan 33/1
07 Nov 18+61d Dundalk (AW) Dundalk Stadium Claiming Race 6f · Standard · 12 ran 11/12 hd 8-3 5252A31A Alan Persse 5/1
07 Sep 18+29d Musselburgh Cala Homes (east) Ltd Handicap Class 5 · 14f · Good · 11 ran 9/11 1¾ 7-13 5082C48C Jamie Gormley 28/1
09 Aug 18+17d Newcastle (AW) 188Bet Mobile Bet10 Get10 Handicap (Div 2) Class 6 · 7f · Standard To Slow · 10 ran 10/10 1½ 9-8 5952C49C David Allan 20/1
23 Jul 18+13d Beverley Racing Again Next Tuesday Handicap Class 6 · 10f · Good To Firm · 15 ran 10/15 2½ 9-10 5558C59C Andrew Elliott 16/1
10 Jul 18+18d Wolverhampton (AW) sportingjobs.co.uk Handicap (Div 1) Class 5 · 7f · Standard · 9 ran 7/9 1¾ 9-11 6775A59A Andrew Elliott 28/1
22 Jun 18+16d Wetherby Mercedes-benz, One Horse Race Handicap Class 6 · 7f · Good To Firm · 15 ran 10/15 1 9-3 6079C70A Ben Curtis 20/1
06 Jun 18+12d Wetherby Napoleons Casino Leeds Handicap Class 4 · 8f · Good To Firm · 16 ran 13/16 2¼ 8-6 6590C49A Paddy Mathers 66/1
25 May 18+27d Haydock Daily Racing Specials At 188Bet Handicap Class 5 · 10f · Good To Firm · 9 ran 8/9 10 9-7 7077C53C Stevie Donohoe 40/1
28 Apr 18+79d Doncaster Black And Veatch Handicap (Str) Class 4 · 8f · Soft · 10 ran 9/10 10 9-0 7768C48C Jason Watson 40/1
08 Feb 18+120d Newcastle (AW) sunbets.co.uk Handicap Class 4 · 8f · Standard · 13 ran 13/13 4½ 9-7 7961B57A Stevie Donohoe 20/1
11 Oct 17+32d Kempton (AW) 32Red.com Handicap Class 4 · 7f · Standard To Slow · 12 ran 11/12 2¾ 9-7 8075A60A Richard Kingscote 5/1
09 Sep 17+133d Kempton (AW) Toteexacta Handicap Class 4 · 7f · Standard To Slow · 11 ran 3/11 1 9-5 80101A87A Pat Cosgrave 6/1
29 Apr 17+358d Doncaster crownhotel-bawtry.com Handicap (Str) Class 4 · 8f · Good To Firm · 17 ran 17/17 2½ 9-7 8064C60C Dougie Costello 9/2J
06 May 16+179d Ascot Mitie Total Security Handicap (Str) Class 4 · 8f · Good To Firm · 17 ran 10/17 1¼ 9-4 82—65A Joe Fanning 8/1
09 Nov 15+27d Kempton (AW) Breeders Supporting Racing EBF Maiden Stakes (Stallion-Restricted) (Plus 10) Class 4 · 7f · Standard · 12 ran 1/12 9-5 ——87A Daniel Tudhope 5/1
13 Oct 15 Leicester ebfstallions.com Reference Point Maiden Stakes (Stallion-Restricted) (Plus 10) Class 4 · 7f · Good To Soft · 10 ran 6/10 3¾ 9-0 ——68A Richard Kingscote 11/2

Quick answers

How many races has Marylebone (GB) won?
Marylebone (GB) won 1 of 25 archived starts between 2015 and 2019, a strike rate of 4%. Placed 3 times in total (12% of starts).
Who trained Marylebone (GB)?
Marylebone (GB) was trained by Joseph Patrick O'Brien on the most recent run on record, at Laytown (AW) on 11 September 2019.
Who is Marylebone (GB)'s sire?
Marylebone (GB) is by Shamardal (USA) out of Mary Boleyn (IRE), whose sire is King's Best.
What going does Marylebone (GB) prefer?
Marylebone (GB) has the best record on standard (aw) going: 1 win from 8 starts (12.5%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Marylebone (GB)'s official rating?
The most recent official rating on record is 45, from the run on 11 September 2019. The highest on record is 82.
What is Marylebone (GB)'s sire's record?
Shamardal (USA)'s progeny in our archive have won 14.8% of 10,411 runs since Jan 2008 (1,008 horses), Flat and jumps together. Weakest on soft going: 11.7% from 1,287. Weakest over 1m5f – 2m (all codes): 9.3% from 475.
Who are Marylebone (GB)'s siblings?
Out of Mary Boleyn (IRE), Marylebone (GB) has 7 other produce in our archive, 4 of them winners. Most wins: Clotilde (GB) (3). Highest grade won: Class 3 (Clotilde (GB)). The wins came over 1m–1m4f. As at Oct 2026.

Record shown from October 2015. 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.