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Horse profile

Mariinsky Theatre (IRE)

2yo filly (at last run, Oct 2024) · Last trainer A P O'Brien · Last owner Mrs John Magnier Michael Tabor Derrick Smith
2 runs · 2 courses · from Oct 2024
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 19 Oct 2024 — 746 days ago. Our archive can't say whether the horse is still in training.
Last run Oct 2024 · 8th of 13
KTB Profile

Mariinsky Theatre is a lightly raced filly by Dubawi out of a dam who has produced two winners from three runners to race including Never Ending Story with three wins. The sire's progeny in the archive have recorded 2373 wins from 12911 runs since Jan 2008. She finished 8 of 13 held in the Irish Stallion Farms EBF Fillies Maiden at Leopardstown in Oct 2024 on her second and last run.

Based on 2 archived runs · run-style from 2 commented runs since Oct 2024 · updated 5 Nov 2026

KTB Speed and Rating

KTB Speed

Best recent Speed — no A or B graded figure in the last 3 runs; the figures below carry grade C

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 84C · median 69.5
GoingRunsBestMedianSince 5 Nov 2025
Soft1———
Good1———
DistanceRunsBestMedianSince 5 Nov 2025
6f – 7f284C69.5—

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 74A the best of the last 2 rated runs · Leopardstown, 19 Oct 2024

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 2 figures · best 74A · median 68.5
GoingRunsBestMedianSince 5 Nov 2025
Soft1———
Good1———
DistanceRunsBestMedianSince 5 Nov 2025
6f – 7f274A68.5—

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.

Pedigree intelligence

Sire

Progeny in our archive have won 18.4% of 12,979 runs since Apr 2009 (1,530 horses).

Weakest at trips under 6f (all codes): 9.8% from 429.

GoingRunsWinsSRvs sireThis horse
Firm481122.9%+4.5—
Good to Firm2,32347720.5%+2.1—
Good3,16756417.8%−0.60 from 1
Good to Soft1,74931117.8%−0.6—
Soft1,91632917.2%−1.20 from 1
Heavy59810317.2%−1.2—
Standard (AW)3,17658618.5%+0.1—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f429429.8%−8.6—
6f – 7f3,12858118.6%+0.20 from 2
1m – 1m1f3,87072718.8%+0.4—
1m2f – 1m4f3,83877120.1%+1.7—
1m5f – 2m1,21018915.6%−2.8—
2m1f – 2m4f3344814.4%−4—
2m5f – 3m1381913.8%−4.6—
Over 3m32618.8%+0.4—

Flat and jumps together (all codes) · since Apr 2009 · as at 5 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam

3 siblings in the archive, 2 winners — best of them Never Ending Story (IRE) (3 wins).

The wins came over 7f–1m½f; the highest grade won is Group 3 (Never Ending Story (IRE)).

ProduceRunsWinsWin tripsBest grade
Never Ending Story (IRE)1337fGroup 3
Navy Seal (IRE)611m½f—
Circle Of Life (IRE)30——

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

Form

DateCourseRace PosBtn Wgt SpdKTB Jockey SP
2024 · 2 runs
19 Oct 24+14d Leopardstown Irish Stallion Farms EBF Fillies Maiden 7f · Soft · 13 ran Sat behind pace - 3rd at halfway - driven but couldn't close 2f out - eased back to finish 8th 8/13 ¾ 9-2 84C74A Declan McDonogh 16/1
05 Oct 24 Curragh Irish Stallion Farms European Breeders Fund Fillies Maiden 7f · Good · 16 ran Sprang forward smartly - tracked the pace in touch - third with 3f left - dropped back inside two furlongs - faded out of contention finishing 14th 14/16 1 9-2 55C63A Declan McDonogh 14/1

Quick answers

How many races has Mariinsky Theatre won?
Mariinsky Theatre (IRE) has yet to win, from 2 archived starts in 2024.
Who trained Mariinsky Theatre?
Mariinsky Theatre (IRE) was trained by A P O'Brien on the most recent run on record, at Leopardstown on 19 October 2024.
Who is Mariinsky Theatre's sire?
Mariinsky Theatre (IRE) is by Dubawi (IRE) out of Athena (IRE), whose sire is Camelot.
What is Mariinsky Theatre's sire's record?
Dubawi (IRE)'s progeny in our archive have won 18.4% of 12,979 runs since Apr 2009 (1,530 horses), Flat and jumps together. Weakest at trips under 6f (all codes): 9.8% from 429.
Who are Mariinsky Theatre's siblings?
Out of Athena (IRE), Mariinsky Theatre (IRE) has 3 other produce in our archive, 2 of them winners. Most wins: Never Ending Story (IRE) (3). Highest grade won: Group 3 (Never Ending Story (IRE)). The wins came over 7f–1m½f. As at Nov 2026.

Record shown from October 2024. 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.