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Horse profile

Grey Diamond (GB)

4yo gelding (at last run, Jan 2018) · Last trainer Denis Quinn · Last owner O S Harris
by Shamardal (USA) out of Tiffany Diamond (IRE) (Sadler's Wells)
9 runs · 8 courses · from Jun 2017
As at 27 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 25 Jan 2018 — 3,197 days ago. Our archive can't say whether the horse is still in training.
Last run Jan 2018 · 11th of 13 Last raced off OR 50
KTB Profile

Grey Diamond (GB) is yet to win from 9 starts. Best effort: 3rd of 7 at Leicester (Jul 2017). Last raced off 50, 14lb below the career-high mark.

Based on 9 archived runs · updated 27 Oct 2026
KTB at a glance OR ↓ 14lb off peak
Official rating50↓ 14lb off peak
50 50–64

KTB Speed and Rating

KTB Speed

Best recent Speed 61 the best of the last 3 graded (A or B) runs · Wolverhampton (AW), 31 Jul 2017

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 9 figures · best 81C · median 57
GoingRunsBestMedianSince 27 Oct 2025
Standard (AW)481C55.5—
Soft253A49—
Good to Soft1———
Good1———
Good to Firm1———
DistanceRunsBestMedianSince 27 Oct 2025
1m2f – 1m4f465C51—
1m – 1m1f361B61—
1m5f – 2m281C65.5—

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 9 figures from 9 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 55C the best of the last 3 rated runs · Chelmsford City (AW), 11 Jan 2018 Official rating 50 at the last run, 25 Jan 2018

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 9 figures · best 59B · median 49
GoingRunsBestMedianSince 27 Oct 2025
Standard (AW)455C47.5—
Soft254A47.5—
Good to Soft1———
Good1———
Good to Firm1———
DistanceRunsBestMedianSince 27 Oct 2025
1m2f – 1m4f458C45—
1m – 1m1f359B54—
1m5f – 2m255C51—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 9 figures from 9 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 10,412 runs since Jan 2008 (1,008 horses).

Weakest on soft going: 11.7% from 1,288. 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 1
Good2,38733514%−0.80 from 1
Good to Soft1,01312412.2%−2.60 from 1
Soft1,28815111.7%−3.10 from 2
Heavy3704512.2%−2.6—
Standard (AW)3,31556417%+2.20 from 4
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f5838714.9%+0.1—
6f – 7f4,07359314.6%−0.2—
1m – 1m1f2,98547615.9%+1.10 from 3
1m2f – 1m4f2,07431315.1%+0.30 from 4
1m5f – 2m475449.3%−5.50 from 2
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 27 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Tiffany Diamond (IRE) (Sadler's Wells)

3 siblings in the archive, 1 winner — best of them Rue Des Irlandais (IRE) (3 wins).

The wins came over 1m2f–1m2½f.

ProduceRunsWinsWin tripsBest grade
Rue Des Irlandais (IRE)1231m2f–1m2½f—
Gemologist (IRE)440——
Grey Gem (IRE)120——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 4 0 0% −4.00
Soft 2 0 0% −2.00
Good to Soft 1 0 0% −1.00
Good 1 0 0% −1.00
Good to Firm 1 0 0% −1.00

ClassRunsWinsSR£1
Class 6 4 0 0% −4.00
Class 5 4 0 0% −4.00
Class 7 1 0 0% −1.00

CourseRunsWinsSR£1
Chelmsford City (AW) 2 0 0% −2.00
Kempton (AW) 1 0 0% −1.00
Lingfield 1 0 0% −1.00
Pontefract 1 0 0% −1.00
Wolverhampton (AW) 1 0 0% −1.00
Leicester 1 0 0% −1.00
Haydock 1 0 0% −1.00
Hamilton 1 0 0% −1.00

DistanceRunsWinsSR£1
1m2f – 1m4f 4 0 0% −4.00
1m – 1m1f 3 0 0% −3.00
1m5f – 2m 2 0 0% −2.00

JockeyRunsWinsSR£1
Danny Brock 2 0 0% −2.00
Joe Fanning 2 0 0% −2.00
Franny Norton 2 0 0% −2.00
George Bass 1 0 0% −1.00
Mr Alex Ferguson 1 0 0% −1.00
Silvestre De Sousa 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 6 0 0% −6.00
Tongue tie + visor 2 0 0% −2.00
Blinkers 1 0 0% −1.00

SeasonRunsWinsSR£1
2018 2 0 0% −2.00
2017 7 0 0% −7.00

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
2018 · 2 runs
25 Jan 18+14d Chelmsford City (AW) Bet toteplacepot At betfred.com All-Weather 'Hands And Heels' Apprentice Handicap Class 7 · 10f · Standard · 13 ran 11/13 1 9-1 5044C41C George Bass 33/1
11 Jan 18+22d Chelmsford City (AW) Bet totetrifecta At betfred.com Handicap Class 6 · 13.5f · Standard · 8 ran 8/8 18 9-0 5450C55C Danny Brock 33/1
2017 · 7 runs
20 Dec 17+121d Kempton (AW) 32Red.com Handicap Class 6 · 16f · Standard · 14 ran 12/14 7 9-1 5781C47C Danny Brock 100/1
21 Aug 17+12d Lingfield Sign Up To 188Bet Affiliates Handicap Class 6 · 10f · Good To Soft · 11 ran 9/11 shd 9-7 6157A49A Joe Fanning 16/1
09 Aug 17+9d Pontefract Samantha Kerley Birthday Handicap (Gentleman Amateurs) Class 5 · 10f · Soft · 5 ran 5/5 12 10-4 6445C41B Mr Alex Ferguson 12/1
31 Jul 17+11d Wolverhampton (AW) University Of Wolverhampton Racing Maiden Handicap Class 6 · 8.5f · Standard · 13 ran 13/13 ½ 9-4 6461B48A Franny Norton 12/1
20 Jul 17+13d Leicester Breeders Backing Racing Ebf Maiden Stakes Class 5 · 10f · Good · 7 ran 3/7 10 9-5 —65C58C Silvestre De Sousa 14/1
07 Jul 17+8d Haydock Betfred Watch Sky Sports In Our Shops Maiden Stakes Class 5 · 8f · Good To Firm · 5 ran 5/5 1 9-5 —61C59B Franny Norton 22/1
29 Jun 17 Hamilton Thistle Bloodstock Maiden Stakes Class 5 · 9f · Soft · 11 ran 7/11 nse 9-3 —53A54A Joe Fanning 10/1

Quick answers

How many races has Grey Diamond won?
Grey Diamond (GB) has yet to win, from 9 archived starts between 2017 and 2018.
Who trained Grey Diamond?
Grey Diamond (GB) was trained by Denis Quinn on the most recent run on record, at Chelmsford City (AW) on 25 January 2018.
Who is Grey Diamond's sire?
Grey Diamond (GB) is by Shamardal (USA) out of Tiffany Diamond (IRE), whose sire is Sadler's Wells.
What is Grey Diamond's official rating?
The most recent official rating on record is 50, from the run on 25 January 2018. The highest on record is 64.
What is Grey Diamond's sire's record?
Shamardal (USA)'s progeny in our archive have won 14.8% of 10,412 runs since Jan 2008 (1,008 horses), Flat and jumps together. Weakest on soft going: 11.7% from 1,288. Weakest over 1m5f – 2m (all codes): 9.3% from 475.
Who are Grey Diamond's siblings?
Out of Tiffany Diamond (IRE), Grey Diamond (GB) has 3 other produce in our archive, 1 of them a winner. Most wins: Rue Des Irlandais (IRE) (3). The wins came over 1m2f–1m2½f. As at Oct 2026.

Record shown from June 2017. 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.