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Horse profile

Diamondsareforever (IRE)

3yo filly (at last run, May 2023) · Last trainer A P O'Brien · Last owner Mrs Richard Henry Mrs John Magnier
by Justify (USA) out of Diamondsandrubies (IRE) (Fastnet Rock)
2 runs · 2 courses · from Dec 2022
As at 27 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 6 May 2023 — 1,270 days ago. Our archive can't say whether the horse is still in training.
Last run May 2023 · 8th of 8 Won at Dundalk (AW) New yard
KTB Profile

Diamondsareforever won one of two starts between Dec 2022 and May 2023. The filly won at Dundalk over 1m – 1m1f on standard going in Dec 2022 and finished 8 of 8 at Naas over 1m2f – 1m4f on good to soft in May 2023. Her last run at Naas in May 2023 was her first for the yard. By Justify whose progeny have a 13.8% strike rate over 1m – 1m1f in the archive while her dam has produced three winners from three runners to race.

Based on 2 archived runs · updated 27 Oct 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 114 the best of the last 2 graded (A or B) runs · Naas, 6 May 2023

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 2 figures · best 114A · median 105
GoingRunsBestMedianSince 27 Oct 2025
Good to Soft1———
Standard (AW)1———
DistanceRunsBestMedianSince 27 Oct 2025
1m2f – 1m4f1———
1m – 1m1f1———

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 2 figures from 2 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 77A the best of the last 2 rated runs · Dundalk (AW), 21 Dec 2022

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 2 figures · best 77A · median 71.5
GoingRunsBestMedianSince 27 Oct 2025
Good to Soft1———
Standard (AW)1———
DistanceRunsBestMedianSince 27 Oct 2025
1m2f – 1m4f1———
1m – 1m1f1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 2 figures from 2 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
Justify (USA)

Progeny in our archive have won 17.9% of 525 runs since Jan 2008 (98 horses).

Strongest over 6f – 7f (all codes): 23.5% from 149. Weakest over 1m – 1m1f (all codes): 13.7% from 161.

GoingRunsWinsSRvs sireThis horse
Firm100%−17.9—
Good to Firm751520%+2.1—
Good1673018%+0.1—
Good to Soft57915.8%−2.10 from 1
Soft731723.3%+5.4—
Heavy26311.5%−6.4—
Standard (AW)1262015.9%−21 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f3266.7%+48.8—
6f – 7f1493523.5%+5.6—
1m – 1m1f1612213.7%−4.21 from 1
1m2f – 1m4f1742614.9%−30 from 1
1m5f – 2m34823.5%+5.6—
2m1f – 2m4f4125%+7.1—

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

3 siblings in the archive, 3 winners — best of them Pearls And Rubies (USA) (1 win).

The wins came over 5f–1m4f; the highest grade won is Class 4 (Diamond Sparkles (USA)).

ProduceRunsWinsWin tripsBest grade
Pearls And Rubies (USA)915f—
Diamond Sparkles (USA)217fClass 4
Riches And Rubies (USA)711m4fClass 5

Too few runs for meaningful splits. The full record is below.

Form

DateCourseRace PosBtn Wgt SpdKTB Jockey SP
2023 · 1 run
06 May 23+136d Naas Al Shira'aa Racing Irish EBF Blue Wind Stakes (Fillies' Group 3) 10f · Good To Yielding · 8 ran 8/8 4¾ 9-2 114A66A Colin Keane 13/2
2022 · 1 run
21 Dec 22 Dundalk (AW) Irishinjuredjockeys.com Race 8f · Standard · 13 ran 1/13 9-0 96B77A Seamie Heffernan 10/1

Quick answers

How many races has Diamondsareforever won?
Diamondsareforever (IRE) won 1 of 2 archived starts between 2022 and 2023, a strike rate of 50%. Placed 1 time in total (50% of starts).
Who trained Diamondsareforever?
Diamondsareforever (IRE) was trained by A P O'Brien on the most recent run on record, at Naas on 6 May 2023.
Who is Diamondsareforever's sire?
Diamondsareforever (IRE) is by Justify (USA) out of Diamondsandrubies (IRE), whose sire is Fastnet Rock.
What is Diamondsareforever's sire's record?
Justify (USA)'s progeny in our archive have won 17.9% of 525 runs since Jan 2008 (98 horses), Flat and jumps together. Strongest over 6f – 7f (all codes): 23.5% from 149. Weakest over 1m – 1m1f (all codes): 13.7% from 161.
Who are Diamondsareforever's siblings?
Out of Diamondsandrubies (IRE), Diamondsareforever (IRE) has 3 other produce in our archive, 3 of them winners. Most wins: Pearls And Rubies (USA) (1). Highest grade won: Class 4 (Diamond Sparkles (USA)). The wins came over 5f–1m4f. As at Oct 2026.

Record shown from December 2022. 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.