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Horse profile

Crack Of Thunder (GB)

4yo filly · Trainer Jack Jones · Owner The Twilight Zone Syndicate
by Cracksman (GB) out of Zumran (GB) (Rock Of Gibraltar)
5 runs · 5 courses · from Jun 2026
As at 15 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
First-time headgear LTO Last run 11 Aug 2026 · 9th of 11 Last raced off OR 32
KTB Profile

Crack Of Thunder is a filly by Cracksman out of a Rock Of Gibraltar mare and has yet to win from five starts. She has raced exclusively over 1m to 2m, with four runs on all-weather and one on turf. Her last run came at Lingfield in Aug 2026 where she finished 9 of 11 in a Class 6 race, first time in headgear and off her career-high mark of 32.

Based on 5 archived runs · run-style from 5 commented runs since Jun 2026 · updated 15 Nov 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 83 the best of the last 1 graded (A or B) run · Lingfield (AW), 11 Aug 2026

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 4 figures · best 83B · median 56
GoingRunsBestMedianSince 15 Nov 2025
Standard (AW)483B564 runs · 83 / 56
DistanceRunsBestMedianSince 15 Nov 2025
1m2f – 1m4f383B543 runs · 83 / 54
1m – 1m1f1——1 run · —
Jumps 1 figure · too few for a breakdown

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 5 figures from 5 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating (flat) 59A the best of the last 3 rated runs · Lingfield (AW), 11 Aug 2026 Official rating 32 at the last flat run, 11 Aug 2026

Best recent KTB Rating (jumps) 74C the best of the last 1 rated run · Worcester, 11 Jun 2026

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 4 figures · best 59A · median 56.5
GoingRunsBestMedianSince 15 Nov 2025
Standard (AW)459A56.54 runs · 59 / 56.5
DistanceRunsBestMedianSince 15 Nov 2025
1m2f – 1m4f359A573 runs · 59 / 57
1m – 1m1f1——1 run · —
Jumps 1 figure · too few for a breakdown

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 5 figures from 5 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 5 analysed runs since Jun 2026

  • Held up 2 (40%) · 0 wins
  • Mid-division 2 (40%) · 0 wins
  • Prominent 1 (20%) · 0 wins

Pedigree intelligence

Sire
Cracksman (GB)

Progeny in our archive have won 11.4% of 1,826 runs since Apr 2022 (239 horses).

Strongest on heavy going: 16.2% from 105. Strongest over 1m5f – 2m (all codes): 15.9% from 270.

GoingRunsWinsSRvs sireThis horse
Good to Firm2302611.3%−0.1—
Good4184811.5%+0.10 from 1
Good to Soft2243214.3%+2.9—
Soft2612810.7%−0.7—
Heavy1051716.2%+4.8—
Standard (AW)588579.7%−1.70 from 4
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f48612.5%+1.1—
6f – 7f384338.6%−2.8—
1m – 1m1f443419.3%−2.10 from 1
1m2f – 1m4f6167311.9%+0.50 from 3
1m5f – 2m2704315.9%+4.50 from 1
2m1f – 2m4f56916.1%+4.7—
2m5f – 3m9333.3%+21.9—

Flat and jumps together (all codes) · since Apr 2022 · as at 14 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Zumran (GB) (Rock Of Gibraltar)

2 siblings in the archive, 1 winner — best of them Byefornow (GB) (2 wins).

The wins came over 5f–6f; the highest grade won is Class 4 (Byefornow (GB)).

ProduceRunsWinsWin tripsBest grade
Byefornow (GB)1725f–6fClass 4
Preferred (GB)70——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 4 0 0% −4.00
Good 1 0 0% −1.00

ClassRunsWinsSR£1
Class 3 2 0 0% −2.00
Class 6 1 0 0% −1.00
Class 4 1 0 0% −1.00
Class 5 1 0 0% −1.00

CourseRunsWinsSR£1
Lingfield (AW) 1 0 0% −1.00
Southwell (AW) 1 0 0% −1.00
Kempton (AW) 1 0 0% −1.00
Wolverhampton (AW) 1 0 0% −1.00
Worcester 1 0 0% −1.00

DistanceRunsWinsSR£1
1m2f – 1m4f 3 0 0% −3.00
1m – 1m1f 1 0 0% −1.00
1m5f – 2m 1 0 0% −1.00

JockeyRunsWinsSR£1
Jason Watson 1 0 0% −1.00
Ross Coakley 1 0 0% −1.00
Pierre-Louis Jamin 1 0 0% −1.00
Cieren Fallon 1 0 0% −1.00
Rian Corcoran 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 4 0 0% −4.00
Cheekpieces 1 0 0% −1.00

TypeRunsWinsSR£1
Flat 4 0 0% −4.00
NH Flat 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
2026 · 5 runs
11 Aug 26+15d Lingfield (AW) Compare Licenced Betting Sites gambling.com Classified Stakes Class 6 · 1m4f · Standard · 11 ran Sat close to front group early - urged forward with two furlongs left - lost ground inside final furlong - finished ninth beaten 4¾ lengths 9/11 ¾ 9-9 3283B59A Jason Watson 125/1
27 Jul 26+19d Southwell (AW) Prestige Safety First Aid Training Novice Stakes (gbb/gbbplus Race) Class 3 · 1m4f · Standard · 14 ran settled towards the back - driven 4f out - well beaten 12/14 11 9-10 —54C57C Ross Coakley 500/1
08 Jul 26+10d Kempton (AW) Unibet/EBF Fillies' Novice Stakes (GBB/GBBPlus Race) Class 3 · 1m3f · Standard / Slow · 12 ran no higher than mid-division at any stage - lost ground from the 2f marker 8/12 6 9-13 —52C56C Pierre-Louis Jamin 250/1
28 Jun 26+17d Wolverhampton (AW) Enjoy A Bostin Day At The Races With SFRacing Club Restricted Maiden Fillies' Stakes (GBB Race) Class 4 · 1m1½f · Standard · 11 ran Held up towards the back - slipped further away two furlongs out and finished well adrift 11/11 1½ 9-13 —58C48C Cieren Fallon 125/1
11 Jun 26 Worcester CopyBet Royal Ascot BOG From Sunday Mares' NH Flat Race (Conditionals/Amateurs) (GBB Race) Class 5 · 2m · Good · 14 ran Held up in the pack - urged forward with 4f left - unable to improve position - finished well beaten in 12th 12/14 1½ 10-8 —84C74C Rian Corcoran 5/1

Quick answers

How many races has Crack Of Thunder won?
Crack Of Thunder (GB) has yet to win, from 5 archived starts in 2026.
Who trains Crack Of Thunder?
Crack Of Thunder (GB) is trained by Jack Jones, who saddled the horse on its most recent run on 11 August 2026.
Who is Crack Of Thunder's sire?
Crack Of Thunder (GB) is by Cracksman (GB) out of Zumran (GB), whose sire is Rock Of Gibraltar.
What is Crack Of Thunder's official rating?
The most recent official rating on record is 32, from the run on 11 August 2026. That is also the highest on record.
What is Crack Of Thunder's sire's record?
Cracksman (GB)'s progeny in our archive have won 11.4% of 1,826 runs since Apr 2022 (239 horses), Flat and jumps together. Strongest on heavy going: 16.2% from 105. Strongest over 1m5f – 2m (all codes): 15.9% from 270.
Who are Crack Of Thunder's siblings?
Out of Zumran (GB), Crack Of Thunder (GB) has 2 other produce in our archive, 1 of them a winner. Most wins: Byefornow (GB) (2). Highest grade won: Class 4 (Byefornow (GB)). The wins came over 5f–6f. As at Nov 2026.

Record shown from June 2026. 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.