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Horse profile

Viscountess Nelson (IRE)

6yo mare · Trainer Nicky Henderson · Owner Old Gold Racing With Francesca Cumani
by Mount Nelson (GB) out of Taws (GB) (Hernando)
5 runs · 5 courses · from Dec 2025
As at 1 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won at Perth Last run 18 Jul 2026 · 4th of 6 Last raced off OR 111
KTB Profile

Viscountess Nelson won her only race at Class 4 level when taking the Stonepack Mares' National Hunt Novices' Hurdle at Perth in Apr 2026 over 2m1f – 2m4f on good ground. The mare has one win and three places from five starts on turf. She finished fourth of six when prominent in the Hadwins Novices' Hurdle at Cartmel in Jul 2026. The daughter of Mount Nelson last ran off her career-high official rating of 111.

Based on 5 archived runs · run-style from 5 commented runs since Dec 2025 · updated 1 Nov 2026
KTB at a glance Typically prominent Win at Class 4

KTB Speed and Rating

KTB Speed

Best recent Speed 129 the best of the last 3 graded (A or B) runs · Cartmel, 18 Jul 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 →

Jumps 5 figures · best 129A · median 102
GoingRunsBestMedianSince 1 Nov 2025
Good3129A1023 runs · 129 / 102
Good to Soft2119A1062 runs · 119 / 106
DistanceRunsBestMedianSince 1 Nov 2025
2m1f – 2m4f3119A1023 runs · 119 / 102
2m5f – 3m1——1 run · —
1m5f – 2m1——1 run · —

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 122B the best of the last 3 rated runs · Fontwell, 10 Jun 2026 Official rating 111 at the last run, 18 Jul 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 122B · median 117
GoingRunsBestMedianSince 1 Nov 2025
Good3122B1173 runs · 122 / 117
Good to Soft2121A1162 runs · 121 / 116
DistanceRunsBestMedianSince 1 Nov 2025
2m1f – 2m4f3122B1213 runs · 122 / 121
2m5f – 3m1——1 run · —
1m5f – 2m1——1 run · —

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 Dec 2025

  • Prominent 3 (60%) · 0 wins
  • Led 2 (40%) · 1 win

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 2
Soft1,2531249.9%0—
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%−0.20 from 1
2m1f – 2m4f1,1991189.8%−0.11 from 3
2m5f – 3m534529.7%−0.20 from 1
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
Taws (GB) (Hernando)

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
Good 3 1 33% −1.56
Good to Soft 2 0 0% −2.00

ClassRunsWinsSR£1
Class 4 4 1 25% −2.56
Class 5 1 0 0% −1.00

CourseRunsWinsSR£1
Cartmel 1 0 0% −1.00
Fontwell 1 0 0% −1.00
Perth 1 1 100% +0.44
Plumpton 1 0 0% −1.00
Huntingdon 1 0 0% −1.00

DistanceRunsWinsSR£1
2m1f – 2m4f 3 1 33% −1.56
2m5f – 3m 1 0 0% −1.00
1m5f – 2m 1 0 0% −1.00

JockeyRunsWinsSR£1
James Bowen 2 1 50% −0.56
Nico de Boinville 2 0 0% −2.00
Mr Daniel Williams 1 0 0% −1.00

SeasonRunsWinsSR£1
2026 4 1 25% −2.56
2025 1 0 0% −1.00

TypeRunsWinsSR£1
Hurdle 4 1 25% −2.56
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 · 4 runs
18 Jul 26+38d Cartmel Hadwins Novices' Hurdle Race (GBB Race) Class 4 · 2m6f · Good · 6 ran handy early - untidy at the first and stumbled at the last - driven out but weakened on the run-in 4/6 1¾ 10-7 111129A108B Mr Daniel Williams 4/1
10 Jun 26+48d Fontwell Weatherbys nhstallions.co.uk Mares' Novices' Hurdle (GBB Race) Class 4 · 2m3f · Good · 6 ran Set the pace before drifting off-line at the opening fence and quickly overtaken - settled in the leading group - edged left and stayed on winner's heels from 2 out - closed up again after the last - gave everything to the line - couldn't quite find more in the closing strides 2/6 shd 11-9 —100B122B James Bowen 10/11F
23 Apr 26+38d Perth Stonepack Mares' 'National Hunt' Novices' Hurdle (GBB Race) Class 4 · 2m4f · Good · 7 ran Front early - untidy over 2nd and jumped awkwardly at 3rd - lost command before 4th - up alongside the pace 2 out - roused to regain command before last - sprinted away after that - won going away 1/7 11-0 —102A117B James Bowen 4/9F
16 Mar 26+84d Plumpton More Radio Maiden Hurdle (GBB Race) Class 4 · 2m4½f · Good To Soft · 8 ran Handy early - hit front before final two out then pushed along - lost advantage at last after slight mistake - battled to line but no extra beaten a length 2/8 1 11-0 —119A121A Nico de Boinville 85/40
2025 · 1 run
22 Dec 25 Huntingdon PricedUp Supports British Racing Open Maiden NH Flat Race (GBB Race) Class 5 · 2m · Good To Soft · 8 ran Settled off the front group early - pushed along with 2f remaining - stayed on at one gear from inside the final furlong - finished fourth 4/8 2 10-13 —93A111A Nico de Boinville 9/2

Quick answers

How many races has Viscountess Nelson won?
Viscountess Nelson (IRE) won 1 of 5 archived starts between 2025 and 2026, a strike rate of 20%. Placed 3 times in total (60% of starts).
Who trains Viscountess Nelson?
Viscountess Nelson (IRE) is trained by Nicky Henderson, who saddled the horse on its most recent run on 18 July 2026.
Who is Viscountess Nelson's sire?
Viscountess Nelson (IRE) is by Mount Nelson (GB) out of Taws (GB), whose sire is Hernando.
What going does Viscountess Nelson prefer?
Viscountess Nelson (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 Viscountess Nelson's official rating?
The most recent official rating on record is 111, from the run on 18 July 2026. That is also the highest on record.
What is Viscountess Nelson'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.

Record shown from December 2025. 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.