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Horse profile

Sergei Prokofiev (CAN)

4yo colt (at last run, Jun 2020) · Last trainer A P O'Brien · Last owner Derrick Smith Mrs John Magnier Michael Tabor
by Scat Daddy (USA) out of Orchard Beach (CAN) (Tapit)
13 runs · 7 courses · from Apr 2018
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 16 Jun 2020 — 2,333 days ago. Our archive can't say whether the horse is still in training.
Last run Jun 2020 · 11th of 11 4 wins · Navan, Newmarket & Naas Last raced off OR 107
KTB Profile

Sergei Prokofiev (CAN) is 4 from 13, including a Group 3 win. The biggest win we hold: the Newmarket Academy Godolphin Beacon Project Cornwallis Stakes at Newmarket (Oct 2018). Hasn't won since Mar 2019. All 4 wins have come over trips under 6f.

Based on 13 archived runs · updated 5 Nov 2026

Progeny in our archive

Progeny record

As a sire, Sergei Prokofiev (CAN)’s progeny in our archive have won 10.5% of 1,375 runs since Mar 2024 (203 horses).

GoingRunsWinsSRvs sire
Firm12433.3%+22.8
Good to Firm261218%−2.5
Good303289.2%−1.3
Good to Soft1131311.5%+1
Soft1021211.8%+1.3
Heavy29517.2%+6.7
Standard (AW)5556111%+0.5
Distance (all codes)RunsWinsSRvs sire
Under 6f2463213%+2.5
6f – 7f8378510.2%−0.3
1m – 1m1f2302410.4%−0.1
1m2f – 1m4f5535.5%−5
1m5f – 2m400%−10.5
2m1f – 2m4f300%−10.5

Flat and jumps together (all codes) · since Mar 2024 · as at 5 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Official rating107↓ 4lb off peak
107 107–111

KTB Speed and Rating

KTB Speed

Best recent Speed 113 the best of the last 3 graded (A or B) runs · Sandown, 6 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 13 figures · best 113A · median 95
GoingRunsBestMedianSince 5 Nov 2025
Good to Firm7113A95—
Good3107C105—
Good to Soft1———
Soft1———
Standard (AW)1———
DistanceRunsBestMedianSince 5 Nov 2025
Under 6f10113A96—
6f – 7f397A83—

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 13 figures from 13 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 92A the best of the last 3 rated runs · Sandown, 6 Jul 2019 Official rating 107 at the last run, 16 Jun 2020

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 13 figures · best 115A · median 94
GoingRunsBestMedianSince 5 Nov 2025
Good to Firm7115A94—
Good3115A77—
Good to Soft1———
Soft1———
Standard (AW)1———
DistanceRunsBestMedianSince 5 Nov 2025
Under 6f10115A95.5—
6f – 7f3115A84—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 13 figures from 13 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
Scat Daddy (USA)

Progeny in our archive have won 14.2% of 906 runs since Jun 2011 (99 horses).

Strongest on good to firm going: 19.7% from 198. Strongest at trips under 6f (all codes): 27.4% from 124. Weakest over 1m2f – 1m4f (all codes): 7.5% from 134.

GoingRunsWinsSRvs sireThis horse
Firm5120%+5.8—
Good to Firm1983919.7%+5.52 from 7
Good1902412.6%−1.61 from 3
Good to Soft691115.9%+1.70 from 1
Soft8889.1%−5.11 from 1
Heavy16212.5%−1.7—
Standard (AW)3404412.9%−1.30 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1243427.4%+13.24 from 10
6f – 7f3475415.6%+1.40 from 3
1m – 1m1f2673111.6%−2.6—
1m2f – 1m4f134107.5%−6.7—
1m5f – 2m3200%−14.2—
2m1f – 2m4f200%−14.2—

Flat and jumps together (all codes) · since Jun 2011 · as at 5 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Orchard Beach (CAN) (Tapit)

2 siblings in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Early Warning (CAN)20——
Turko Beach (CAN)30——

Record by conditions

GoingRunsWinsSR£1
Good to Firm 7 2 29% −1.71
Good 3 1 33% −0.12
Good to Soft 1 0 0% −1.00
Soft 1 1 100% +0.40
Standard (AW) 1 0 0% −1.00

ClassRunsWinsSR£1
Class 1 7 1 14% −3.00

CourseRunsWinsSR£1
Ascot 3 0 0% −3.00
Newmarket 3 1 33% +1.00
Naas 2 1 50% −0.71
Navan 2 2 100% +2.28
Sandown 1 0 0% −1.00
Curragh 1 0 0% −1.00
Dundalk (AW) 1 0 0% −1.00

DistanceRunsWinsSR£1
Under 6f 10 4 40% −0.43
6f – 7f 3 0 0% −3.00

JockeyRunsWinsSR£1
Ryan Moore 8 2 25% −5.31
Donnacha O'Brien 3 2 67% +3.88
Seamie Heffernan 2 0 0% −2.00

HeadgearRunsWinsSR£1
None 12 4 33% −2.43
Tongue tie 1 0 0% −1.00

SeasonRunsWinsSR£1
2020 2 0 0% −2.00
2019 4 1 25% −1.12
2018 7 3 43% −0.31

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
2020 · 2 runs
16 Jun 20+8d Ascot King's Stand Stakes (Group 1) Class 1 · 5f · Good To Soft · 11 ran 11/11 ½ 9-4 10794A72A Ryan Moore 28/1
08 Jun 20+338d Naas Anglesey Lodge Equine Hospital Woodlands Stakes (Listed) 5½f · Good To Firm · 11 ran 10/11 hd 9-7 10884A76A Seamie Heffernan 6/1
2019 · 4 runs
06 Jul 19+18d Sandown Coral Charge (Group 3) (Registered As The Sprint Stakes) Class 1 · 5f · Good To Firm · 9 ran 6/9 nse 8-12 110113A92A Ryan Moore 5/2F
18 Jun 19+45d Ascot King's Stand Stakes (Group 1) Class 1 · 5f · Good · 12 ran 10/12 1¼ 8-12 111105B73A Ryan Moore 12/1
04 May 19+35d Newmarket Zoustar Palace House Stakes (Group 3) Class 1 · 5f · Good To Firm · 11 ran 4/11 ½ 9-0 11195A97A Ryan Moore 6/4F
30 Mar 19+169d Navan Cork Stakes (Listed) 5½f · Good · 15 ran 1/15 9-0 111107C115A Donnacha O'Brien 15/8F
2018 · 7 runs
12 Oct 18+13d Newmarket Newmarket Academy Godolphin Beacon Project Cornwallis Stakes (Group 3) Class 1 · 5f · Good To Firm · 14 ran 1/14 9-1 11097C110A Donnacha O'Brien 3/1F
29 Sep 18+48d Newmarket Juddmonte Middle Park Stakes (Group 1) Class 1 · 6f · Good To Firm · 8 ran 7/8 ½ 9-0 11097A84A Seamie Heffernan 7/1
12 Aug 18+54d Curragh Keeneland Phoenix Stakes (Group 1) 6f · Good · 5 ran 5/5 3 9-3 11083C77B Ryan Moore 7/4
19 Jun 18+30d Ascot Coventry Stakes (Group 2) Class 1 · 6f · Good To Firm · 23 ran 3/23 nk 9-1 —82C115A Ryan Moore 3/1
20 May 18+27d Naas Coolmore War Command Rochestown Stakes (listed) 5f · Good To Firm · 5 ran 1/5 9-3 —61C94B Ryan Moore 2/7F
23 Apr 18+12d Navan Irish Stallion Farms EBF Race (Plus 10) 5f · Yielding To Soft · 5 ran 1/5 9-2 —103C108B Ryan Moore 2/5F
11 Apr 18 Dundalk (AW) Irish Stallion Farms EBF Maiden (Plus 10) 5f · Standard · 5 ran 2/5 shd 9-5 —86C98B Donnacha O'Brien 4/9F

Quick answers

How many races has Sergei Prokofiev won?
Sergei Prokofiev (CAN) won 4 of 13 archived starts between 2018 and 2020, a strike rate of 30.8%. Placed 6 times in total (46.2% of starts).
Who trained Sergei Prokofiev?
Sergei Prokofiev (CAN) was trained by A P O'Brien on the most recent run on record, at Ascot on 16 June 2020.
Who is Sergei Prokofiev's sire?
Sergei Prokofiev (CAN) is by Scat Daddy (USA) out of Orchard Beach (CAN), whose sire is Tapit.
What going does Sergei Prokofiev prefer?
Sergei Prokofiev (CAN) has the best record on good going: 1 win from 3 starts (33.3%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Sergei Prokofiev's official rating?
The most recent official rating on record is 107, from the run on 16 June 2020. The highest on record is 111.
What is Sergei Prokofiev's sire's record?
Scat Daddy (USA)'s progeny in our archive have won 14.2% of 906 runs since Jun 2011 (99 horses), Flat and jumps together. Strongest on good to firm going: 19.7% from 198. Strongest at trips under 6f (all codes): 27.4% from 124. Weakest over 1m2f – 1m4f (all codes): 7.5% from 134.
Who are Sergei Prokofiev's siblings?
Out of Orchard Beach (CAN), Sergei Prokofiev (CAN) has 2 other produce in our archive, 0 of them winners. As at Nov 2026.
Has Sergei Prokofiev sired winners?
As a sire, Sergei Prokofiev (CAN)'s progeny in our archive have won 10.5% of 1,375 runs since Mar 2024 (203 horses), Flat and jumps together.

Record shown from April 2018. 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.