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Horse profile

Jack Is Back (GB)

4yo gelding (at last run, Jul 2021) · Last trainer Lawrence Mullaney · Last owner James Lomas Partner
by Due Diligence (USA) out of Rosa Luxemburg (GB) (Needwood Blade)
5 runs · 4 courses · from Oct 2019
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 19 Jul 2021 — 1,926 days ago. Our archive can't say whether the horse is still in training.
Last run Jul 2021 · 11th of 15 Last raced off OR 52
KTB Profile

Jack Is Back (GB) is yet to win from 5 starts.

Based on 5 archived runs · updated 28 Oct 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 71 the best of the last 1 graded (A or B) run · Beverley, 29 May 2021

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 5 figures · best 79C · median 71
GoingRunsBestMedianSince 28 Oct 2025
Good279C64.5—
Soft271A42.5—
Good to Firm1———
DistanceRunsBestMedianSince 28 Oct 2025
1m2f – 1m4f278C64—
6f – 7f271A42.5—
1m – 1m1f1———

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 65A the best of the last 3 rated runs · Beverley, 29 May 2021 Official rating 52 at the last run, 19 Jul 2021

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 5 figures · best 65A · median 52
GoingRunsBestMedianSince 28 Oct 2025
Good252C49.5—
Soft265A51—
Good to Firm1———
DistanceRunsBestMedianSince 28 Oct 2025
1m2f – 1m4f253A50—
6f – 7f265A51—
1m – 1m1f1———

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

Pedigree intelligence

Sire
Due Diligence (USA)

Progeny in our archive have won 10.3% of 2,554 runs since Jan 2008 (193 horses).

GoingRunsWinsSRvs sireThis horse
Firm1119.1%−1.2—
Good to Firm4134711.4%+1.10 from 1
Good528519.7%−0.60 from 2
Good to Soft2172411.1%+0.8—
Soft2042411.8%+1.50 from 2
Heavy5359.4%−0.9—
Standard (AW)1,1281119.8%−0.5—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f4865912.1%+1.8—
6f – 7f1,38115010.9%+0.60 from 2
1m – 1m1f441357.9%−2.40 from 1
1m2f – 1m4f223198.5%−1.80 from 2
1m5f – 2m1600%−10.3—
2m1f – 2m4f700%−10.3—

Flat and jumps together (all codes) · since Jan 2008 · as at 27 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Rosa Luxemburg (GB) (Needwood Blade)

4 siblings in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Box And Cox (GB)50——
Dilly Rosa (GB)110——
Paco Lady (GB)60——
Sophia's Princess (GB)20——

Record by conditions

GoingRunsWinsSR£1
Good 2 0 0% −2.00
Soft 2 0 0% −2.00
Good to Firm 1 0 0% −1.00

ClassRunsWinsSR£1
Class 6 3 0 0% −3.00
Class 5 2 0 0% −2.00

CourseRunsWinsSR£1
Beverley 2 0 0% −2.00
Nottingham 1 0 0% −1.00
Redcar 1 0 0% −1.00
Pontefract 1 0 0% −1.00

DistanceRunsWinsSR£1
1m2f – 1m4f 2 0 0% −2.00
6f – 7f 2 0 0% −2.00
1m – 1m1f 1 0 0% −1.00

JockeyRunsWinsSR£1
Jason Hart 1 0 0% −1.00
Miss Megan Jordan 1 0 0% −1.00
Dylan Hogan 1 0 0% −1.00
Paula Muir 1 0 0% −1.00
Graham Lee 1 0 0% −1.00

SeasonRunsWinsSR£1
2021 4 0 0% −4.00
2019 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
2021 · 4 runs
19 Jul 21+14d Beverley Sky Bet Extra Places Every Day Handicap Class 6 · 10f · Good To Firm · 15 ran 11/15 4¼ 9-8 5278C53A Jason Hart 40/1
05 Jul 21+37d Nottingham racingtv.com Handicap (Female Amateur Jockeys) Class 6 · 10f · Good · 14 ran 13/14 1½ 9-5 5450C47A Miss Megan Jordan 50/1
29 May 21+12d Beverley bet365 Median Auction Maiden Stakes Class 5 · 7.5f · Soft · 8 ran 5/8 5 9-11 —71A65A Dylan Hogan 80/1
17 May 21+574d Redcar Great To Welcome You Back Median Auction Maiden Stakes Class 6 · 8f · Good · 17 ran 7/17 4¾ 9-11 —79C52C Paula Muir 200/1
2019 · 1 run
21 Oct 19 Pontefract Napoleons Casino Bradford Novice Auction Stakes Class 5 · 6f · Soft · 11 ran 10/11 4½ 9-0 —14C37C Graham Lee 33/1

Quick answers

How many races has Jack Is Back won?
Jack Is Back (GB) has yet to win, from 5 archived starts between 2019 and 2021.
Who trained Jack Is Back?
Jack Is Back (GB) was trained by Lawrence Mullaney on the most recent run on record, at Beverley on 19 July 2021.
Who is Jack Is Back's sire?
Jack Is Back (GB) is by Due Diligence (USA) out of Rosa Luxemburg (GB), whose sire is Needwood Blade.
What is Jack Is Back's official rating?
The most recent official rating on record is 52, from the run on 19 July 2021. The highest on record is 54.
What is Jack Is Back's sire's record?
Due Diligence (USA)'s progeny in our archive have won 10.3% of 2,554 runs since Jan 2008 (193 horses), Flat and jumps together.
Who are Jack Is Back's siblings?
Out of Rosa Luxemburg (GB), Jack Is Back (GB) has 4 other produce in our archive, 0 of them winners. As at Oct 2026.

Record shown from October 2019. 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.