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Horse profile

Mistress Emma (IRE)

8yo mare · Trainer Nicky Henderson · Owner The Acts Of Union 1707
by Mount Nelson (GB) out of Tatispout (FR) (Califet)
6 runs · 6 courses · from Jun 2022
As at 1 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won at Worcester Last run 15 Jan 2026 Last raced off OR 100
KTB Profile

Mistress Emma is 1 from 6 on turf, the win coming at Class 5 level in the mares bumper at Worcester in Jun 2022 on good ground. All five subsequent starts have been over 1m5f to 2m, with three places. She last ran at Wincanton in Jan 2026, where she led before finishing off a mark of 100. The mare has not won since Jun 2022.

Based on 6 archived runs · run-style from 5 commented runs since Dec 2024 · updated 1 Nov 2026
KTB at a glance Typically prominent Wins on good or faster Win at Class 5

KTB Speed and Rating

KTB Speed

Best recent Speed 140 the best of the last 3 graded (A or B) runs · Worcester, 29 Jun 2022

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 →

Jumps 5 figures · best 140B · median 79
GoingRunsBestMedianSince 1 Nov 2025
Good3140B792 runs · 79 / 68
Good to Soft1———
Soft1———
DistanceRunsBestMedianSince 1 Nov 2025
1m5f – 2m4140B682 runs · 79 / 68
2m1f – 2m4f1———

Of 6 runs looked at, 1 has no figure: did not complete (1).

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 5 figures from 6 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 104A the best of the last 3 rated runs · Warwick, 20 Jan 2025 Official rating 100 at the last run, 15 Jan 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 →

Jumps 5 figures · best 108A · median 104
GoingRunsBestMedianSince 1 Nov 2025
Good3108A852 runs · 85 / 84.5
Good to Soft1———
Soft1———
DistanceRunsBestMedianSince 1 Nov 2025
1m5f – 2m4108A95.52 runs · 85 / 84.5
2m1f – 2m4f1———

Of 6 runs looked at, 1 has no figure: did not complete (or a non-runner row) (1).

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 5 figures from 6 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 Dec 2024

  • Prominent 3 (60%) · 0 wins
  • Led 1 (20%) · 0 wins
  • Held up 1 (20%) · 0 wins

Pedigree intelligence

Sire
Mount Nelson (GB)

Progeny in our archive have won 9.9% of 6,271 runs since May 2012 (538 horses).

GoingRunsWinsSRvs sireThis horse
Firm3026.7%−3.2—
Good to Firm6437311.4%+1.5—
Good1,6761508.9%−11 from 3
Good to Soft1,04111010.6%+0.70 from 1
Soft1,2531249.9%00 from 2
Heavy4535111.3%+1.4—
Standard (AW)1,1751139.6%−0.3—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f9888.2%−1.7—
6f – 7f864859.8%−0.1—
1m – 1m1f678497.2%−2.7—
1m2f – 1m4f1,22314812.1%+2.2—
1m5f – 2m1,5941559.7%−0.21 from 5
2m1f – 2m4f1,1991189.8%−0.10 from 1
2m5f – 3m534529.7%−0.2—
Over 3m8189.9%0—

Flat and jumps together (all codes) · since May 2012 · as at 31 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Tatispout (FR) (Califet)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
French Bumper (IRE)20——

Record by conditions

GoingRunsWinsSR£1
Good 3 1 33% +2.00
Soft 2 0 0% −2.00
Good to Soft 1 0 0% −1.00

ClassRunsWinsSR£1
Class 4 3 0 0% −3.00
Class 5 2 1 50% +3.00
Class 3 1 0 0% −1.00

CourseRunsWinsSR£1
Wincanton 1 0 0% −1.00
Kempton 1 0 0% −1.00
Plumpton 1 0 0% −1.00
Warwick 1 0 0% −1.00
Newbury 1 0 0% −1.00
Worcester 1 1 100% +4.00

DistanceRunsWinsSR£1
1m5f – 2m 5 1 20% +0.00
2m1f – 2m4f 1 0 0% −1.00

JockeyRunsWinsSR£1
Nico de Boinville 3 1 33% +2.00
Paddy Hanlon 2 0 0% −2.00
Mr Daniel Williams 1 0 0% −1.00

SeasonRunsWinsSR£1
2026 1 0 0% −1.00
2025 3 0 0% −3.00
2024 1 0 0% −1.00
2022 1 1 100% +4.00

TypeRunsWinsSR£1
Hurdle 5 0 0% −5.00
NH Flat 1 1 100% +4.00

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 · 1 run
15 Jan 26+52d Wincanton Get The Best Odds With Oddschecker Handicap Hurdle Class 5 · 1m7f · Soft · 13 ran Set the pace early and opened a four-length advantage by the 3rd - drifted left once overtaken after the third-last - form fell away rapidly and dropped well behind - eased and taken out of the contest ahead of the second-last PU/13 — 11-7 100—— Mr Daniel Williams 33/1
2025 · 3 runs
24 Nov 25+21d Kempton BOG Today For Tomorrow With CopyBet Conditional Jockeys' Handicap Hurdle Class 4 · 2m · Good · 10 ran Settled at the back - pushed along at the home turn - never a factor - finished ninth 9/10 13 10-13 10379C84C Paddy Hanlon 33/1
03 Nov 25+287d Plumpton Fully Booked Handicap Hurdle Class 4 · 2m · Good · 7 ran Sat in third early - driven three out as spot slipped away - fell back sharply and weakened badly at second last - well beaten and off the pace approaching the finish 7/7 12 11-2 10357C85C Paddy Hanlon 5/1
20 Jan 25+33d Warwick Watch RacingTV Free For 31 Days Mares' Novices' Hurdle (GBB Race) (Div 2) Class 4 · 2m3f · Good To Soft · 10 ran Handy in the pack - moved up to dispute the lead 2 out travelling strongly - error at the last under pressure then held for third 3/10 2¼ 11-5 —98B104A Nico de Boinville 13/8
2024 · 1 run
18 Dec 24+903d Newbury Watch Weekend Winners Powered By BetVictor Maiden Hurdle (GBB Race) Class 3 · 2m½f · Soft · 11 ran Tracked the leader as the pace opened up dramatically 4 out - dropped to 3rd and surrendered massive ground by 3 out - error at 2 out while under pressure - left 5 lengths adrift in 2nd at the last - impeded by a horse that came down shortly after - kept on to cut the deficit and finish 2nd 2/11 ¾ 10-11 —50A106B Nico de Boinville 7/2
2022 · 1 run
29 Jun 22 Worcester Sky Sports Racing Sky 415 Mares' Open NH Flat Race (GBB Race) Class 5 · 2m · Good · 13 ran 1/13 10-9 —140B108A Nico de Boinville 4/1

Quick answers

How many races has Mistress Emma won?
Mistress Emma (IRE) won 1 of 6 archived starts between 2022 and 2026, a strike rate of 16.7%. Placed 3 times in total (50% of starts).
Who trains Mistress Emma?
Mistress Emma (IRE) is trained by Nicky Henderson, who saddled the horse on its most recent run on 15 January 2026.
Who is Mistress Emma's sire?
Mistress Emma (IRE) is by Mount Nelson (GB) out of Tatispout (FR), whose sire is Califet.
What going does Mistress Emma prefer?
Mistress Emma (IRE) 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 Mistress Emma's official rating?
The most recent official rating on record is 100, from the run on 15 January 2026. The highest on record is 103.
What is Mistress Emma's sire's record?
Mount Nelson (GB)'s progeny in our archive have won 9.9% of 6,271 runs since May 2012 (538 horses), Flat and jumps together.
Who are Mistress Emma's siblings?
Out of Tatispout (FR), Mistress Emma (IRE) has 1 other produce in our archive, 0 of them winners. As at Nov 2026.

Record shown from June 2022. 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.