How many races has Mariinsky (GB) won?

Mariinsky (GB) has yet to win, from 2 archived starts in 2021.

Who trained Mariinsky (GB)?

Mariinsky (GB) was trained by John & Thady Gosden on the most recent run on record, at Kempton (AW) on 19 December 2021.

Who is Mariinsky (GB)'s sire?

Mariinsky (GB) is by Sea The Stars (IRE) out of Marie De Medici (USA), whose sire is Medicean.

What is Mariinsky (GB)'s sire's record?

Sea The Stars (IRE)'s progeny in our archive have won 15.7% of 9,910 runs since Jan 2008 (1,104 horses), Flat and jumps together. Strongest on good to firm going: 18.9% from 1,503. Weakest on heavy going: 9.3% from 451. Weakest over 2m5f – 3m (all codes): 11.5% from 139.

Who are Mariinsky (GB)'s siblings?

Out of Marie De Medici (USA), Mariinsky (GB) has 6 other produce in our archive, 5 of them winners. Most wins: Moonspirit (GB) (6). Highest grade won: Group 3 (Local Time (GB)). The wins came over 7f–1m3f. As at Oct 2026.

Horse profile

Mariinsky (GB)

2yo gelding (at last run, Dec 2021) · Last trainer John & Thady Gosden · Last owner Godolphin

by Sea The Stars (IRE) out of Marie De Medici (USA) (Medicean)

2 runs · 2 courses · from Dec 2021

As at 14 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily

No run recorded since 19 Dec 2021 — 1,760 days ago. Our archive can't say whether the horse is still in training.

Last run Dec 2021 · 11th of 11

KTB Profile

Lightly raced, with 2 archived starts, both in Dec 2021, the last of them as a 2yo gelding. Finished 11 of 11 at Kempton (AW) last time. By Sea The Stars (IRE), whose progeny in our archive have won 15.7% of 9,910 runs since Jan 2008.

Based on 2 archived runs · updated 14 Oct 2026

0–2Wins / Runs
0%Strike rate
0 (0%)Placed
−2.00£1 level staken=2 at SP
15dAvg between runs

KTB Speed and Rating

KTB Speed

Best recent Speed 75 the best of the last 1 graded (A or B) run · Wolverhampton (AW), 4 Dec 2021

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 2 figures · best 75^B · median 58.5

Going	Runs	Best	Median	Since 14 Oct 2025
Standard (AW)	2	75^B	58.5	—

Distance	Runs	Best	Median	Since 14 Oct 2025
1m2f – 1m4f	1	—	—	—
1m – 1m1f	1	—	—	—

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 66^A the best of the last 2 rated runs · Wolverhampton (AW), 4 Dec 2021

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 2 figures · best 66^A · median 59.5

Going	Runs	Best	Median	Since 14 Oct 2025
Standard (AW)	2	66^A	59.5	—

Distance	Runs	Best	Median	Since 14 Oct 2025
1m2f – 1m4f	1	—	—	—
1m – 1m1f	1	—	—	—

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

Sea The Stars (IRE)

Progeny in our archive have won 15.7% of 9,910 runs since Jan 2008 (1,104 horses).

Strongest on good to firm going: 18.9% from 1,503. Weakest on heavy going: 9.3% from 451. Weakest over 2m5f – 3m (all codes): 11.5% from 139.

Going	Runs	Wins	SR	vs sire	This horse
Firm	18	3	16.7%	+1	—
Good to Firm	1,503	284	18.9%	+3.2	—
Good	2,638	420	15.9%	+0.2	—
Good to Soft	1,234	205	16.6%	+0.9	—
Soft	1,522	186	12.2%	−3.5	—
Heavy	451	42	9.3%	−6.4	—
Standard (AW)	2,543	420	16.5%	+0.8	0 from 2

Distance (all codes)	Runs	Wins	SR	vs sire	This horse
Under 6f	27	4	14.8%	−0.9	—
6f – 7f	770	113	14.7%	−1	—
1m – 1m1f	2,081	332	16%	+0.3	0 from 1
1m2f – 1m4f	4,404	757	17.2%	+1.5	0 from 1
1m5f – 2m	1,886	262	13.9%	−1.8	—
2m1f – 2m4f	582	73	12.5%	−3.2	—
2m5f – 3m	139	16	11.5%	−4.2	—
Over 3m	21	3	14.3%	−1.4	—

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

Marie De Medici (USA) (Medicean)

6 siblings in the archive, 5 winners — best of them Moonspirit (GB) (6 wins).

The wins came over 7f–1m3f; the highest grade won is Group 3 (Local Time (GB)).

Produce	Runs	Wins	Win trips	Best grade
Moonspirit (GB)	16	6	1m–1m½f	Class 3
Local Time (GB)	8	3	7f–1m	Group 3
Extra Mile (GB)	7	3	1m2f	Class 3
Wings Of Time (GB)	5	2	1m–1m½f	Class 3
Beauvais (IRE)	3	1	1m3f	Class 5
Regal Legacy (GB)	1	0	—	—

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

Form

Date	Course	Race	Pos	Btn	Wgt	Spd	KTB	Jockey	SP
19 Dec 21+15d	Kempton (AW)	Unibet/British Stallion Studs EBF Novice Stakes (GBB Race) Class 5 · 11f · Standard To Slow · 11 ran	11/11	22	9-2	42^C	53^C	Robert Havlin	8/1
04 Dec 21	Wolverhampton (AW)	Watch Racing Free Online At Coral EBF Novice Stakes (GBB Race) Class 5 · 9.5f · Standard · 13 ran	8/13	½	9-5	75^B	66^A	Kieran O'Neill	25/1

Quick answers

How many races has Mariinsky (GB) won?: Mariinsky (GB) has yet to win, from 2 archived starts in 2021.
Who trained Mariinsky (GB)?: Mariinsky (GB) was trained by John & Thady Gosden on the most recent run on record, at Kempton (AW) on 19 December 2021.
Who is Mariinsky (GB)'s sire?: Mariinsky (GB) is by Sea The Stars (IRE) out of Marie De Medici (USA), whose sire is Medicean.
What is Mariinsky (GB)'s sire's record?: Sea The Stars (IRE)'s progeny in our archive have won 15.7% of 9,910 runs since Jan 2008 (1,104 horses), Flat and jumps together. Strongest on good to firm going: 18.9% from 1,503. Weakest on heavy going: 9.3% from 451. Weakest over 2m5f – 3m (all codes): 11.5% from 139.
Who are Mariinsky (GB)'s siblings?: Out of Marie De Medici (USA), Mariinsky (GB) has 6 other produce in our archive, 5 of them winners. Most wins: Moonspirit (GB) (6). Highest grade won: Group 3 (Local Time (GB)). The wins came over 7f–1m3f. As at Oct 2026.