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Horse profile

Master Zack (GB)

4yo colt · Trainer Martin Dunne · Owner T C Obrien
by Ardad (IRE) out of Amna (GB) (Sayif)
20 runs · 11 courses · from Aug 2024
As at 18 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won at Southwell (AW) Headgear returns LTO Off 198 days · 13th of 13 Last raced off OR 45
KTB Profile

Master Zack is 1 from 20, the win coming at Class 6 level in a handicap at Southwell over under 6f on standard going in Apr 2025. He has not won since. Typically held up, he was held in his last run at Southwell in Apr 2026 when finishing 13 of 13 off an official rating of 45. Headgear returned that day. All wins at Class 6.

Based on 20 archived runs · run-style from 6 commented runs · updated 18 Oct 2026
KTB at a glance Typically held up Won on AW, 0 on turf Win at Class 6
Official rating45↓ 7lb off peak
45 45–52

KTB Speed and Rating

KTB Speed

Best recent Speed 74 the best of the last 3 graded (A or B) runs · Southwell (AW), 2 Apr 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 20 figures · best 88B · median 67.5
GoingRunsBestMedianSince 18 Oct 2025
Standard (AW)1082A702 · 74 / 66.5
Good to Firm488B70—
Good to Soft241C34.51 · —
Soft269C69—
Good1———
Firm1———
DistanceRunsBestMedianSince 18 Oct 2025
Under 6f1788B692 · 74 / 66.5
6f – 7f371B411 · —

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 20 figures from 20 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 26A the best of the last 3 rated runs · Chelmsford City (AW), 7 Mar 2026 Official rating 45 at the last run, 2 Apr 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 20 figures · best 69A · median 43
GoingRunsBestMedianSince 18 Oct 2025
Standard (AW)1069A362 · 26 / 24.5
Good to Firm460A52.5—
Good to Soft249C35.51 · —
Soft255A46—
Good1———
Firm1———
DistanceRunsBestMedianSince 18 Oct 2025
Under 6f1769A452 · 26 / 24.5
6f – 7f349C361 · —

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 20 figures from 20 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 6 analysed runs

  • Held up 4 (67%) · 0 wins
  • Led 1 (17%) · 0 wins
  • Prominent 1 (17%) · 0 wins

Pedigree intelligence

Sire

Progeny in our archive have won 8.7% of 3,499 runs since Jan 2008 (350 horses).

GoingRunsWinsSRvs sireThis horse
Firm4037.5%−1.20 from 1
Good to Firm697689.8%+1.10 from 4
Good800627.8%−0.90 from 1
Good to Soft3553911%+2.30 from 2
Soft324319.6%+0.90 from 2
Heavy9355.4%−3.3—
Standard (AW)1,190988.2%−0.51 from 10
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1,14012611.1%+2.41 from 17
6f – 7f1,9531547.9%−0.80 from 3
1m – 1m1f327206.1%−2.6—
1m2f – 1m4f5559.1%+0.4—
1m5f – 2m700%−8.7—
2m1f – 2m4f1715.9%−2.8—

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
Amna (GB) (Sayif)

No other produce in our archive. It holds racing in Great Britain, Ireland and France from 2005, so siblings racing elsewhere won’t appear here.

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 10 1 10% +0.00
Good to Firm 4 0 0% −4.00
Good to Soft 2 0 0% −2.00
Soft 2 0 0% −2.00
Good 1 0 0% −1.00
Firm 1 0 0% −1.00

ClassRunsWinsSR£1
Class 6 17 1 6% −7.00
Class 4 2 0 0% −2.00
Class 5 1 0 0% −1.00

CourseRunsWinsSR£1
Chelmsford City (AW) 5 0 0% −5.00
Southwell (AW) 4 1 25% +6.00
Yarmouth 2 0 0% −2.00
Bath 2 0 0% −2.00
Lingfield 1 0 0% −1.00
Nottingham 1 0 0% −1.00
Doncaster 1 0 0% −1.00
Wolverhampton (AW) 1 0 0% −1.00
Sandown 1 0 0% −1.00
Newmarket 1 0 0% −1.00
Windsor 1 0 0% −1.00

DistanceRunsWinsSR£1
Under 6f 17 1 6% −7.00
6f – 7f 3 0 0% −3.00

JockeyRunsWinsSR£1
Raul Da Silva 3 0 0% −3.00
David Egan 2 1 50% +8.00
Adam Farragher 2 0 0% −2.00
Dylan Hogan 2 0 0% −2.00
Hollie Doyle 1 0 0% −1.00
Jack Mitchell 1 0 0% −1.00
Jack Dace 1 0 0% −1.00
Kieran O'Neill 1 0 0% −1.00
Kyle McHugh 1 0 0% −1.00
Aiden Brookes 1 0 0% −1.00
Rob Hornby 1 0 0% −1.00
Richard Kingscote 1 0 0% −1.00
Jack Doughty 1 0 0% −1.00
Edward Greatrex 1 0 0% −1.00
Jack Gilligan 1 0 0% −1.00

HeadgearRunsWinsSR£1
HT 10 1 10% +0.00
None 7 0 0% −7.00
Hood 3 0 0% −3.00

SeasonRunsWinsSR£1
2026 2 0 0% −2.00
2025 9 1 11% +1.00
2024 9 0 0% −9.00

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
02 Apr 26+26d Southwell (AW) Midnite A Next Generation Betting App Handicap Class 6 · 5f · Standard · 13 ran Held up at back on the far flank - shifted to the middle of the track inside final furlong - soon faded - finished 13th 13/13 4 8-9 4574B23A Hollie Doyle 28/1
07 Mar 26+137d Chelmsford City (AW) For The Love Of Horses Handicap Class 6 · 5f · Standard · 8 ran Pulling hard early - shared front spot - pushed along and lost the front 2f out - dropped away in the last furlong to finish seventh 7/8 5 9-0 4559A26A Jack Mitchell 14/1
21 Oct 25+18d Yarmouth tigerbet.co.uk Bet Online Handicap Class 6 · 6f · Good To Soft · 16 ran Reared leaving stalls and hesitant to begin - dropped well behind the field early - still detached before halfway - crept past fading runners in the closing stages to finish 14th 14/16 13 8-3 4528C22C Jack Dace 66/1
03 Oct 25+58d Southwell (AW) At The Races App Expert Tips Handicap Class 6 · 5f · Standard · 10 ran Settled towards the back - pushed along with 2f left - clearly outpaced approaching the final furlong - finished ninth 9/10 4¾ 9-5 4673A28A Kieran O'Neill 14/1
06 Aug 25+4d Yarmouth BetWright Grilling Me Softly Classified Stakes Class 6 · 5f · Good To Firm · 7 ran Dwelt leaving the stalls - dropped in and angled left to make ground 2f out - kept on at one speed inside the final furlong to finish third 3/7 1¼ 9-6 4888B60A David Egan 4/1
02 Aug 25+37d Lingfield Sky Sports Racing Virgin 519 Handicap Class 6 · 5f · Good · 6 ran Settled towards the back - lost touch approaching the last two furlongs - finished sixth without threatening 6/6 ¾ 8-10 5057A41B Kyle McHugh 12/1
26 Jun 25+11d Nottingham pricedup.bet Boosts Handicap Class 6 · 5f · Good To Firm · 6 ran Tracked the front pack early - lost touch approaching 2f out before finding renewed effort inside the final furlong - drifted left under pressure - held no more in the last furlong to finish fourth 4/6 1¾ 9-2 5274B50B Aiden Brookes 15/2
15 Jun 25+15d Doncaster Get The Inside Track With raceday-ready.com Handicap Class 6 · 5f · Good To Firm · 8 ran Sprang smartly from the gate - settled towards the back - urged forward with 2f left - kept responding in the last furlong - edged closer but denied in the closing stages 3/8 1¼ 9-3 5266A55A Adam Farragher 50/1
31 May 25+26d Southwell (AW) Golf And Gallop Handicap Class 6 · 5f · Standard · 9 ran Slow into stride - settled at the back - unable to challenge throughout - finished well held in 8th 8/9 5½ 8-10 5247A17A Rob Hornby 5/1
05 May 25+31d Bath Monarch Classic Car Show August 24th Handicap Class 6 · 5.5f · Firm · 7 ran Held up at back - bumped lightly at the break then driven and left behind with 1f left - rallied in the closing stages to finish third 3/7 2½ 9-9 5263A51B Richard Kingscote 11/4
04 Apr 25+106d Southwell (AW) Boost Your Acca At BetMGM Handicap Class 6 · 5f · Standard · 8 ran Settled towards back early but not far off pace - moved left approaching 2f out - roused and made progress - pushed along in pursuit with 1f left - hit the front close home - stayed on well to score 1/8 8-9 4580A69A David Egan 9/1
19 Dec 24+26d Chelmsford City (AW) Sky Bet For The Fans Nursery Class 6 · 5f · Standard · 8 ran Stood up and hesitant at the break - settled towards the back and fighting the bridle - lost touch with the pace two furlongs out - stayed on late without threatening the front runners 7/8 ½ 8-5 4569A36A Jack Doughty 20/1
23 Nov 24+14d Wolverhampton (AW) Safer Gambling Tools At BetMGM Nursery Class 6 · 5f · Standard · 7 ran Sat close to the front - pressed for effort inside final furlong - dropped away late - finished 7th beaten 3.75L 7/7 1¾ 8-8 4565A38A Adam Farragher 12/1
09 Nov 24+9d Chelmsford City (AW) CCR Supports The Royal British Legion Nursery Class 6 · 5f · Standard · 7 ran Set the pace early - drifted right approaching final furlong then overtaken - weakened late to finish 4th 4/7 nk 8-8 4582A50A Raul Da Silva 15/2
31 Oct 24+10d Chelmsford City (AW) Betfair Exchange Nursery Class 6 · 6f · Standard · 13 ran Poor getaway - held up towards the back - always struggling - finished well held in 8th 8/13 2 8-13 4571B36A Raul Da Silva 25/1
21 Oct 24+11d Bath Best Odds Guaranteed dragonbet.co.uk Nursery Class 6 · 5f · Soft · 5 ran Prominent on the near rail - pressed for effort and lost touch inside final two furlongs - kept battling in closing stages once held - finished fourth 4/5 2¼ 8-3 4569C37B Raul Da Silva 11/2
10 Oct 24+27d Chelmsford City (AW) Betfair Safer Gambling Tools Nursery Class 6 · 5f · Standard To Slow · 7 ran Drifted right from the stalls - travelled with eagerness in the pack - moved through to press the leaders 2f out - pushed along a furlong out - unable to find more late and finished 4th beaten 3 lengths 4/7 1¾ 8-8 4557A46A Dylan Hogan 16/5
13 Sep 24+20d Sandown Madri Excepcional EBF Maiden Stakes (GBB Race) Class 4 · 5f · Soft · 10 ran Hesitant start - settled towards the back of the pack - unable to close in closing stages - finished seventh 7/10 2½ 9-7 —69A55A Edward Greatrex 150/1
24 Aug 24+21d Newmarket Jenningsbet British Ebf Novice Stakes (GBB Race) Class 4 · 6f · Good To Soft · 10 ran Took a keen hold in the pack - urged forward approaching 2f out - failed to find anything and finished eighth 8/10 ½ 9-4 —41C49C Dylan Hogan 200/1
03 Aug 24 Windsor British EBF Maiden Stakes (GBB Race) Class 5 · 5f · Good To Firm · 10 ran Settled towards the back - moved left approaching 2f out - unable to close - finished ninth 9/10 ½ 9-7 —66B45A Jack Gilligan 18/1

Quick answers

How many races has Master Zack (GB) won?
Master Zack (GB) won 1 of 20 archived starts between 2024 and 2026, a strike rate of 5%. Placed 2 times in total (10% of starts).
Who trains Master Zack (GB)?
Master Zack (GB) is trained by Martin Dunne, who saddled the horse on its most recent run on 2 April 2026.
Who is Master Zack (GB)'s sire?
Master Zack (GB) is by Ardad (IRE) out of Amna (GB), whose sire is Sayif.
What going does Master Zack (GB) prefer?
Master Zack (GB) has the best record on standard (aw) going: 1 win from 10 starts (10%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Master Zack (GB)'s official rating?
The most recent official rating on record is 45, from the run on 2 April 2026. The highest on record is 52.
What is Master Zack (GB)'s sire's record?
Ardad (IRE)'s progeny in our archive have won 8.7% of 3,499 runs since Jan 2008 (350 horses), Flat and jumps together.

Record shown from August 2024. 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.