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Horse profile

Katalyst (GB)

3yo filly · Trainer William Muir & Chris Grassick · Owner Coral Racing Club
by A'Ali (IRE) out of Katalea (GB) (Mr Greeley)
15 runs · 8 courses · from Aug 2025
As at 19 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won at Kempton (AW) Ran 13 days ago · 7th of 9 Last raced off OR 59
KTB Profile

Typically a front-runner in 5 of 9 analysed runs — Katalyst (GB) is 1 from 15, the win coming at Class 6 level. The win came on the all-weather — 0 from 7 on turf. Last raced off 59, 9lb below the career-high mark.

Based on 15 archived runs · run-style from 9 commented runs · updated 19 Oct 2026
KTB at a glance Typically led Won on AW, 0 on turf Win at Class 6 OR ↓ 9lb off peak
Official rating59↓ 9lb off peak
59 57–68

KTB Speed and Rating

KTB Speed

Best recent Speed 75 the best of the last 3 graded (A or B) runs · Kempton (AW), 5 Oct 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 15 figures · best 83B · median 69
GoingRunsBestMedianSince 19 Oct 2025
Standard (AW)876B686 · 75 / 58.5
Good to Firm377A703 · 77 / 70
Good to Soft283B78.52 · 83 / 78.5
Good268C58.51 · —
DistanceRunsBestMedianSince 19 Oct 2025
1m – 1m1f683B706 · 83 / 70
1m2f – 1m4f575A705 · 75 / 70
6f – 7f476B681 · —

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

KTB Rating

Best recent KTB Rating 68A the best of the last 3 rated runs · Kempton (AW), 9 Sep 2026 Official rating 59 at the last run, 5 Oct 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. A, B or C on a run is how much known form was in that race. What this means →

Flat 15 figures · best 76A · median 50
GoingRunsBestMedianSince 19 Oct 2025
Standard (AW)876A55.56 · 68 / 47.5
Good to Firm362A603 · 62 / 60
Good to Soft266A542 · 66 / 54
Good235C331 · —
DistanceRunsBestMedianSince 19 Oct 2025
1m – 1m1f666A50.56 · 66 / 50.5
1m2f – 1m4f568A505 · 68 / 50
6f – 7f476A571 · —

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 15 figures from 15 runs · as at 13 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 9 analysed runs

  • Led 5 (56%) · 1 win
  • Prominent 2 (22%) · 0 wins
  • Held up 2 (22%) · 0 wins

Pedigree intelligence

Sire

Progeny in our archive have won 8.9% of 381 runs since Jan 2008 (65 horses).

Strongest at trips under 6f (all codes): 12.2% from 115.

GoingRunsWinsSRvs sireThis horse
Firm400%−8.9—
Good to Firm9377.5%−1.40 from 3
Good871314.9%+60 from 2
Good to Soft3425.9%−30 from 2
Soft25312%+3.1—
Heavy500%−8.9—
Standard (AW)13396.8%−2.11 from 8
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1151412.2%+3.3—
6f – 7f201126%−2.90 from 4
1m – 1m1f4249.5%+0.60 from 6
1m2f – 1m4f18316.7%+7.81 from 5
1m5f – 2m5120%+11.1—

Flat and jumps together (all codes) · since Jan 2008 · as at 19 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Katalea (GB) (Mr Greeley)

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

The wins came over 1m2f; the highest grade won is Class 6 (Koko Blue (GB)).

Family form: Koko Blue (GB) won at Newcastle (AW), 2 Oct 2026.

ProduceRunsWinsWin tripsBest grade
Koko Blue (GB)1621m2fClass 6
Sweet Katarina (GB)30——
Ballerina Showgirl (GB)10——
Katalena (GB)20——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 8 1 13% +15.00
Good to Firm 3 0 0% −3.00
Good to Soft 2 0 0% −2.00
Good 2 0 0% −2.00

ClassRunsWinsSR£1
Class 5 8 0 0% −8.00
Class 6 7 1 14% +16.00

CourseRunsWinsSR£1
Kempton (AW) 4 1 25% +19.00
Nottingham 4 0 0% −4.00
Southwell (AW) 2 0 0% −2.00
Ffos Las 1 0 0% −1.00
Windsor 1 0 0% −1.00
Lingfield (AW) 1 0 0% −1.00
Wolverhampton (AW) 1 0 0% −1.00
Chepstow 1 0 0% −1.00

DistanceRunsWinsSR£1
1m – 1m1f 6 0 0% −6.00
1m2f – 1m4f 5 1 20% +18.00
6f – 7f 4 0 0% −4.00

JockeyRunsWinsSR£1
Lewis Edmunds 6 1 17% +17.00
Ryan Kavanagh 4 0 0% −4.00
Olivia Tubb 1 0 0% −1.00
Pierre-Louis Jamin 1 0 0% −1.00
Billy Loughnane 1 0 0% −1.00
Kaiya Fraser 1 0 0% −1.00
Edward Greatrex 1 0 0% −1.00

HeadgearRunsWinsSR£1
Blinkers 9 1 11% +14.00
Cheekpieces 5 0 0% −5.00
None 1 0 0% −1.00

SeasonRunsWinsSR£1
2026 10 1 10% +13.00
2025 5 0 0% −5.00

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
05 Oct 26+26d Kempton (AW) Try Unibet's New Improved Acca Boosts Handicap Stakes Class 5 · 11f · Standard / Slow · 9 ran Prominent wide throughout - pushed along 2f out - faded 1f out to finish 7th 7/9 ½ 8-2 5975A50A Olivia Tubb 50/1
09 Sep 26+12d Kempton (AW) Bet £20 Get £20 With Unibet Handicap Stakes Class 6 · 11f · Standard / Slow · 12 ran Sat close to the front - edged in front just past 2f out - driven out approaching the final furlong - kept finding under late pressure to prevail 1/12 9-4 5750A68A Lewis Edmunds 22/1
28 Aug 26+17d Ffos Las K P Tyres Handicap Stakes Class 6 · 10f · Good To Soft · 11 ran Set the pace early - pushed along and put under pressure into contention 3f out then overtaken soon after - dropped away 2f out to finish well beaten 9/11 1½ 9-5 5974C42C Ryan Kavanagh 14/1
11 Aug 26+15d Nottingham Oddschecker Free Bets Handicap Stakes Class 6 · 10f · Good To Firm · 8 ran Pulling hard early - went to the front then lost command 2f out - dropped away final furlong to finish 7th 7/8 7½ 9-1 6070B45A Ryan Kavanagh 17/2
27 Jul 26+6d Windsor Join Fitzdares For A Personal Service Handicap Stakes Class 6 · 10f · Good To Firm · 7 ran made the running - under pressure from 3f out - overtaken over 1f out - held on for fourth 4/7 shd 9-6 6058A62A Ryan Kavanagh 13/2
21 Jul 26+13d Nottingham Dine In Sherwoods Restaurant Handicap Stakes Class 6 · 9f · Good To Firm · 6 ran sat behind the front pair early - asked for more 3f out - briefly lost ground 2f out - responded well in the final furlong to fight back into second close home - narrowly missed out at the line 2/6 shd 9-2 6077A60B Ryan Kavanagh 22/1
08 Jul 26+35d Kempton (AW) Unibet Supporting Safer Gambling Handicap Class 6 · 8f · Standard / Slow · 13 ran dwelt at the start - never troubled the front runners from the back of the field 13/13 46 9-6 62-44C41C Pierre-Louis Jamin 20/1
03 Jun 26+15d Nottingham Wildwest Beer Festival 4th July Fillies' Handicap Class 5 · 8.5f · Good · 10 ran Held a forward spot wide of rivals - lost ground on the leaders with 2f left - dropped away rapidly inside the final furlong - well held at the finish 10/10 ¾ 9-2 6368C35C Lewis Edmunds 7/1
19 May 26+21d Nottingham Conferences And Events At Nottingham Racecourse Fillies' Handicap Class 5 · 8.5f · Good To Soft · 12 ran Shared front spot early - driven up front 3f out - urged 2f out - overtaken inside final furlong - stayed on but slipped from third close home 4/12 hd 8-11 6383B66A Lewis Edmunds 50/1
28 Apr 26+130d Lingfield (AW) attheraces.com/marketmovers Handicap Class 6 · 8f · Standard · 6 ran Handy early - dropped away rapidly rounding the bend 2f out - dropped right out and finished well beaten in 6th 6/6 18 9-9 6542C40C Billy Loughnane 10/1
19 Dec 25+46d Southwell (AW) Read Meg Nicholls' Blog At betmgm.co.uk Nursery Class 5 · 8f · Standard · 9 ran Settled towards rear early - lost touch with pace 2f from home and boxed in briefly with a furlong left - unable to threaten in closing stages finishing 5th beaten 4 1/4 lengths 5/9 ½ 9-6 6672A61A Lewis Edmunds 25/1
03 Nov 25+27d Wolverhampton (AW) Bet 10 Get 40 With BetMGM Restricted Maiden Stakes (GBB Race) Class 5 · 7f · Standard · 9 ran Set the pace early before being overtaken beyond 6f out - dropped from second spot with 5f left while tracking the front group - drifted left and faded inside the final furlong 6/9 5½ 9-0 6867A45A Kaiya Fraser 6/1
07 Oct 25+22d Southwell (AW) Free Tips Daily On attheraces.com Fillies' Restricted Novice Stakes (GBB Race) Class 5 · 7f · Standard · 13 ran Tracked front group on inner - pushed along with 2f left and involved for top spot in final furlong - then found little more but held effort to finish fifth 5/13 nk 9-2 —76B76A Edward Greatrex 25/1
15 Sep 25+32d Kempton (AW) Racing TV Fillies' Novice Stakes (GBB Race) Class 5 · 7f · Standard To Slow · 11 ran Made the running briefly - then dropped in to sit third - pressed for effort with 2f left - lost touch approaching the furlong marker and gave way close home 5/11 1½ 9-2 —69A69A Lewis Edmunds 400/1
14 Aug 25 Chepstow DragonBet / EBF Restricted Maiden Fillies' Stakes (GBB Race) Class 5 · 6f · Good · 8 ran Sluggish start - looked unfurnished and agitated early - never a factor - trailed home in 8th 8/8 3½ 9-2 —49C31C Lewis Edmunds 28/1

Quick answers

How many races has Katalyst (GB) won?
Katalyst (GB) won 1 of 15 archived starts between 2025 and 2026, a strike rate of 6.7%. Placed 2 times in total (13.3% of starts).
Who trains Katalyst (GB)?
Katalyst (GB) is trained by William Muir & Chris Grassick, who saddled the horse on its most recent run on 5 October 2026.
Who is Katalyst (GB)'s sire?
Katalyst (GB) is by A'Ali (IRE) out of Katalea (GB), whose sire is Mr Greeley.
What going does Katalyst (GB) prefer?
Katalyst (GB) has the best record on standard (aw) going: 1 win from 8 starts (12.5%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Katalyst (GB)'s official rating?
The most recent official rating on record is 59, from the run on 5 October 2026. The highest on record is 68.
What is Katalyst (GB)'s sire's record?
A'Ali (IRE)'s progeny in our archive have won 8.9% of 381 runs since Jan 2008 (65 horses), Flat and jumps together. Strongest at trips under 6f (all codes): 12.2% from 115.
Who are Katalyst (GB)'s siblings?
Out of Katalea (GB), Katalyst (GB) has 4 other produce in our archive, 1 of them a winner. Most wins: Koko Blue (GB) (2). Highest grade won: Class 6 (Koko Blue (GB)). The wins came over 1m2f. As at Oct 2026.

Record shown from August 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.