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Horse profile

Isthatu (GB)

2yo filly (at last run, Sep 2025) · Last trainer J S Moore · Last owner J S Moore
by Sergei Prokofiev (CAN) out of Dubawi's Spirit (IRE) (Dubawi)
8 runs · 5 courses · from Jul 2025
As at 18 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 29 Sep 2025 — 383 days ago. Our archive can't say whether the horse is still in training.
Last run Sep 2025 · 5th of 6 Last raced off OR 48
KTB Profile

Isthatu is a maiden who was beaten in all eight starts between Jul 2025 and Sep 2025. She showed her best effort when third of six at Brighton in Aug 2025 and finished fifth of six in a Class 6 nursery at the same course the following month off an official rating of 48. The filly, by Sergei Prokofiev out of a Dubawi mare, raced on turf in seven of those runs.

Based on 8 archived runs · run-style from 3 commented runs · updated 18 Oct 2026
Official rating48↓ 4lb off peak
48 48–52

KTB Speed and Rating

KTB Speed

Best recent Speed 72 the best of the last 3 graded (A or B) runs · Bath, 14 Sep 2025

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 7 figures · best 95C · median 69
GoingRunsBestMedianSince 18 Oct 2025
Good495C71—
Good to Firm263A53—
Soft1———
DistanceRunsBestMedianSince 18 Oct 2025
6f – 7f495C71—
Under 6f243A34—
1m – 1m1f1———

Of 8 runs looked at, 1 has no figure: not enough races on the card to set the day (under 4) (1).

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 7 figures from 8 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 48A the best of the last 3 rated runs · Bath, 14 Sep 2025 Official rating 48 at the last run, 29 Sep 2025

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 8 figures · best 61A · median 42.5
GoingRunsBestMedianSince 18 Oct 2025
Good461A42.5—
Good to Firm247B42.5—
Soft1———
Standard (AW)1———
DistanceRunsBestMedianSince 18 Oct 2025
6f – 7f461A48—
Under 6f338B36—
1m – 1m1f1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 8 figures from 8 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 from 3 analysed runs

  • Held up 2 (67%) · 0 wins
  • Prominent 1 (33%) · 0 wins

Pedigree intelligence

Sire

Progeny in our archive have won 10.6% of 1,335 runs since Jan 2008 (201 horses).

GoingRunsWinsSRvs sireThis horse
Firm12433.3%+22.7—
Good to Firm261218%−2.60 from 2
Good302289.3%−1.30 from 4
Good to Soft1111311.7%+1.1—
Soft901112.2%+1.60 from 1
Heavy25520%+9.4—
Standard (AW)5346011.2%+0.60 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f2383113%+2.40 from 3
6f – 7f8188510.4%−0.20 from 4
1m – 1m1f2232310.3%−0.30 from 1
1m2f – 1m4f5036%−4.6—
1m5f – 2m400%−10.6—
2m1f – 2m4f200%−10.6—

Flat and jumps together (all codes) · since Jan 2008 · as at 17 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Dubawi's Spirit (IRE) (Dubawi)

6 siblings in the archive, 4 winners — best of them Merkava (GB) (1 win).

The wins came over 1m–1m6f; the highest grade won is Class 5 (Merkava (GB)).

ProduceRunsWinsWin tripsBest grade
Merkava (GB)711mClass 5
King Tiger (GB)811mClass 5
Go Your Own Way (GB)1511mClass 6
Kazoey (GB)1611m6fClass 6
Hildaandtony (GB)30——
Iris's Spirit (GB)110——

Record by conditions

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

ClassRunsWinsSR£1
Class 6 5 0 0% −5.00
Class 5 2 0 0% −2.00
Class 3 1 0 0% −1.00

CourseRunsWinsSR£1
Brighton 3 0 0% −3.00
Windsor 2 0 0% −2.00
Bath 1 0 0% −1.00
Chepstow 1 0 0% −1.00
Lingfield (AW) 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 4 0 0% −4.00
Under 6f 3 0 0% −3.00
1m – 1m1f 1 0 0% −1.00

JockeyRunsWinsSR£1
Taylor Fisher 3 0 0% −3.00
Georgia Dobie 3 0 0% −3.00
David Egan 1 0 0% −1.00
Elizabeth Gale 1 0 0% −1.00

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
29 Sep 25+15d Brighton Download The At The Races App Nursery Class 6 · 7f · Good To Firm · 6 ran Handy on the rails - pushed along and unable to quicken final furlong - finished 5th beaten 2 lengths 5/6 ¾ 9-2 4863A47B David Egan 11/2
14 Sep 25+13d Bath BetWright Bangers N'Cash Nursery Class 6 · 8f · Soft · 7 ran Settled at the back early - pushed along with 3f left and made progress inside the final furlong - unable to find more late and finished fifth beaten 5 lengths 5/7 1½ 9-3 5072A48A Taylor Fisher 8/1
01 Sep 25+1d Brighton Download The At The Races App Nursery Class 6 · 5.5f · Good To Firm · 6 ran Reared at the stalls and left flat-footed - struggled to go with the pace and spent the race towards the back - finished fifth 5/6 ½ 8-5 5243A38B Elizabeth Gale 10/1
31 Aug 25+6d Brighton Brighton & Hove Fostering Nursery Class 6 · 6f · Good · 6 ran Up with the front group - ridden over 2f out and kept on inside the final furlong - no extra to threaten for the lead 3/6 1¼ 9-5 5273A49B Taylor Fisher 5/1
25 Aug 25+13d Chepstow DragonBet Welsh Racing Festival 10-12 Oct Nursery Class 6 · 5f · Good · 6 ran Held up in the pack - urged into effort by halfway - pressed for a run a furlong out - kept on late but held for 5th 5/6 nk 9-3 5225A36B Taylor Fisher 6/1
12 Aug 25+8d Lingfield (AW) Sky Sports Racing Sky 415 British EBF Fillies' Restricted Novice Stakes (GBB Race) (AWT) Class 3 · 5f · Standard · 9 ran Slow into stride - held up at the rear throughout - never in contention - finished seventh 7/9 1½ 9-2 ——33A Georgia Dobie 50/1
04 Aug 25+14d Windsor Get Raceday Ready EBF Restricted Novice Stakes (GBB Race) (Div 1) Class 5 · 6f · Good · 9 ran Drifted left at the outset - fighting for head early on outer - made progress into contention 4f out - pushed along 2f out and gave way approaching the final furlong 5/9 2¼ 9-1 —69A61A Georgia Dobie 200/1
21 Jul 25 Windsor Ebf Fillies' Restricted Novice Stakes 2 (For Horses In Bands B, C And D) (Ebf Restricted Race Qualifier) (GBB Race) Class 5 · 6f · Good · 11 ran Hesitant start - settled near back of field early - never got involved and finished well held 8/11 7½ 9-2 —95C33C Georgia Dobie 66/1

Quick answers

How many races has Isthatu (GB) won?
Isthatu (GB) has yet to win, from 8 archived starts in 2025.
Who trained Isthatu (GB)?
Isthatu (GB) was trained by J S Moore on the most recent run on record, at Brighton on 29 September 2025.
Who is Isthatu (GB)'s sire?
Isthatu (GB) is by Sergei Prokofiev (CAN) out of Dubawi's Spirit (IRE), whose sire is Dubawi.
What is Isthatu (GB)'s official rating?
The most recent official rating on record is 48, from the run on 29 September 2025. The highest on record is 52.
What is Isthatu (GB)'s sire's record?
Sergei Prokofiev (CAN)'s progeny in our archive have won 10.6% of 1,335 runs since Jan 2008 (201 horses), Flat and jumps together.
Who are Isthatu (GB)'s siblings?
Out of Dubawi's Spirit (IRE), Isthatu (GB) has 6 other produce in our archive, 4 of them winners. Most wins: Merkava (GB) (1). Highest grade won: Class 5 (Merkava (GB)). The wins came over 1m–1m6f. As at Oct 2026.

Record shown from July 2025. 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.