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Horse profile

Jersey Gem (IRE)

5yo mare (at last run, Apr 2024) · Last trainer Harry Derham · Last owner A Taylor
by Mount Nelson (GB) out of Rose Revived (GB) (Midnight Legend)
6 runs · 5 courses · from Apr 2023
As at 14 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 24 Apr 2024 — 902 days ago. Our archive can't say whether the horse is still in training.
Last run Apr 2024 · 4th of 14 First-time headgear LTO Last raced off OR 94
KTB Profile

Jersey Gem (IRE) is yet to win from 6 starts, though has placed once. Best effort: 3rd of 14 at Southwell (Apr 2023). Last raced off a career-high mark of 94.

Based on 6 archived runs · updated 14 Oct 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 124 the best of the last 3 graded (A or B) runs · Southwell, 28 Apr 2023

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.

Jumps 5 figures · best 124B · median 111
GoingRunsBestMedianSince 14 Oct 2025
Good to Soft3124B114—
Good1———
Soft1———
DistanceRunsBestMedianSince 14 Oct 2025
2m1f – 2m4f296B71.5—
1m5f – 2m2124B119—
2m5f – 3m1———

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 109A the best of the last 3 rated runs · Taunton, 24 Apr 2024 Official rating 94 at the last run, 24 Apr 2024

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.

Jumps 5 figures · best 109A · median 104
GoingRunsBestMedianSince 14 Oct 2025
Good to Soft3105A104—
Good1———
Soft1———
DistanceRunsBestMedianSince 14 Oct 2025
2m1f – 2m4f2104A102—
1m5f – 2m2105A93—
2m5f – 3m1———

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 is derived from in-running commentary, which our data provider does not supply for this horse's races.

Pedigree intelligence

Sire
Mount Nelson (GB)

Progeny in our archive have won 9.9% of 6,245 runs since Jan 2008 (537 horses).

GoingRunsWinsSRvs sireThis horse
Firm3026.7%−3.2—
Good to Firm6427311.4%+1.5—
Good1,6611499%−0.90 from 1
Good to Soft1,03810910.5%+0.60 from 3
Soft1,2491249.9%00 from 1
Heavy4505111.3%+1.40 from 1
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 – 1m4f1,22214812.1%+2.2—
1m5f – 2m1,5911549.7%−0.20 from 2
2m1f – 2m4f1,1911189.9%00 from 2
2m5f – 3m525529.9%00 from 2
Over 3m7679.2%−0.7—

Flat and jumps together (all codes) · since Jan 2008 · as at 13 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Rose Revived (GB) (Midnight Legend)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Ocean Rose (IRE)50——

Record by conditions

GoingRunsWinsSR£1
Good to Soft 3 0 0% −3.00
Good 1 0 0% −1.00
Heavy 1 0 0% −1.00
Soft 1 0 0% −1.00

ClassRunsWinsSR£1
Class 5 3 0 0% −3.00
Class 4 3 0 0% −3.00

CourseRunsWinsSR£1
Southwell 2 0 0% −2.00
Taunton 1 0 0% −1.00
Wincanton 1 0 0% −1.00
Market Rasen 1 0 0% −1.00
Chepstow 1 0 0% −1.00

DistanceRunsWinsSR£1
2m5f – 3m 2 0 0% −2.00
2m1f – 2m4f 2 0 0% −2.00
1m5f – 2m 2 0 0% −2.00

JockeyRunsWinsSR£1
Paul O'Brien 4 0 0% −4.00
Jonjo O'Neill Jr 1 0 0% −1.00
Lewis Saunders 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 5 0 0% −5.00
Tongue tie 1 0 0% −1.00

SeasonRunsWinsSR£1
2024 1 0 0% −1.00
2023 5 0 0% −5.00

TypeRunsWinsSR£1
Hurdle 4 0 0% −4.00
NH Flat 2 0 0% −2.00

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
24 Apr 24+134d Taunton League Of Friends Musgrove Park Hospital Mares' Handicap Hurdle Class 5 · 24f · Good · 14 ran 4/14 5½ 11-10 94111B109A Paul O'Brien 11/1
12 Dec 23+26d Wincanton Welham Mares' Novices' Hurdle (GBB Race) Class 4 · 21.5f · Heavy · 7 ran PU/7 — 11-0 ——— Paul O'Brien 13/2
16 Nov 23+34d Market Rasen Download The Rhino.Bet App EBF Mares' 'National Hunt' Maiden Hurdle (GBB Race) Class 4 · 20.5f · Good To Soft · 13 ran 9/13 1¾ 11-1 —96B104A Paul O'Brien 33/1
13 Oct 23+168d Chepstow Chepstow Construction Equipment EBF Mares' 'NH' Novices' Hurdle (GBB Race) Class 4 · 19.5f · Soft · 13 ran 9/13 nse 10-12 —47C100C Paul O'Brien 12/1
28 Apr 23+16d Southwell Join Southwell Golf Club Mares' Open Maiden NH Flat Race (GBB Race) Class 5 · 16f · Good To Soft · 14 ran 3/14 3¾ 10-10 —124B105A Jonjo O'Neill Jr 33/1
12 Apr 23 Southwell Follow AtTheRaces On Twitter Mares' Standard NH Flat Race (Conditional/Amateurs) (GBB Race) (Div 2) Class 5 · 16f · Good To Soft · 10 ran 6/10 1¼ 9-13 —114A81A Lewis Saunders 8/1

Quick answers

How many races has Jersey Gem (IRE) won?
Jersey Gem (IRE) has yet to win, from 6 archived starts between 2023 and 2024. Placed 1 time in total (16.7% of starts).
Who trained Jersey Gem (IRE)?
Jersey Gem (IRE) was trained by Harry Derham on the most recent run on record, at Taunton on 24 April 2024.
Who is Jersey Gem (IRE)'s sire?
Jersey Gem (IRE) is by Mount Nelson (GB) out of Rose Revived (GB), whose sire is Midnight Legend.
What is Jersey Gem (IRE)'s official rating?
The most recent official rating on record is 94, from the run on 24 April 2024. That is also the highest on record.
What is Jersey Gem (IRE)'s sire's record?
Mount Nelson (GB)'s progeny in our archive have won 9.9% of 6,245 runs since Jan 2008 (537 horses), Flat and jumps together.
Who are Jersey Gem (IRE)'s siblings?
Out of Rose Revived (GB), Jersey Gem (IRE) has 1 other produce in our archive, 0 of them winners. As at Oct 2026.

Record shown from April 2023. 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.