Skip to content
Horse profile

Silverback Jack (IRE)

4yo gelding (at last run, Aug 2021) · Last trainer M J Byrne · Last owner Mrs Michael J Byrne
by Zebedee (GB) out of Emma's Surprise (GB) (Tobougg)
11 runs · 7 courses · from Aug 2020
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 19 Aug 2021 — 1,896 days ago. Our archive can't say whether the horse is still in training.
Last run Aug 2021 · 12th of 15 Headgear returns LTO Last raced off OR 45
KTB Profile

Silverback Jack (IRE) is yet to win from 11 starts. Last raced off 45, 21lb below the career-high mark.

Based on 11 archived runs · updated 28 Oct 2026
KTB at a glance OR ↓ 21lb off peak
Official rating45↓ 21lb off peak
45 45–66

KTB Speed and Rating

KTB Speed

Best recent Speed 80 the best of the last 3 graded (A or B) runs · Listowel, 22 Sep 2020

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 11 figures · best 111C · median 73
GoingRunsBestMedianSince 28 Oct 2025
Good5111C73—
Soft3100C74—
Heavy268A52.5—
Standard (AW)1———
DistanceRunsBestMedianSince 28 Oct 2025
6f – 7f9111C73—
1m – 1m1f268A67—

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 11 figures from 11 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 51A the best of the last 3 rated runs · Naas, 23 Jun 2021 Official rating 45 at the last run, 19 Aug 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 11 figures · best 79A · median 54
GoingRunsBestMedianSince 28 Oct 2025
Good561A48—
Soft379A64—
Heavy255C44—
Standard (AW)1———
DistanceRunsBestMedianSince 28 Oct 2025
6f – 7f979A55—
1m – 1m1f248A40.5—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 11 figures from 11 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

Progeny in our archive have won 9% of 7,139 runs since Jan 2008 (435 horses).

GoingRunsWinsSRvs sireThis horse
Firm7379.6%+0.6—
Good to Firm1,25312510%+1—
Good1,4391188.2%−0.80 from 5
Good to Soft732699.4%+0.4—
Soft880748.4%−0.60 from 3
Heavy267238.6%−0.40 from 2
Standard (AW)2,4952289.1%+0.10 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1,95719610%+1—
6f – 7f3,4933199.1%+0.10 from 9
1m – 1m1f909707.7%−1.30 from 2
1m2f – 1m4f437347.8%−1.2—
1m5f – 2m242177%−2—
2m1f – 2m4f9688.3%−0.7—
2m5f – 3m400%−9—
Over 3m100%−9—

Flat and jumps together (all codes) · since Jan 2008 · as at 28 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam

3 siblings in the archive, 2 winners — best of them Mr Knightley (IRE) (6 wins).

The wins came over 5f–1m; the highest grade won is Class 6 (Mr Knightley (IRE)).

ProduceRunsWinsWin tripsBest grade
Mr Knightley (IRE)2865f–1mClass 6
Zegos Surprise (IRE)2615f—
Bushtiger (IRE)160——

Record by conditions

GoingRunsWinsSR£1
Good 5 0 0% −5.00
Soft 3 0 0% −3.00
Heavy 2 0 0% −2.00
Standard (AW) 1 0 0% −1.00

CourseRunsWinsSR£1
Killarney 2 0 0% −2.00
Naas 2 0 0% −2.00
Cork 2 0 0% −2.00
Curragh 2 0 0% −2.00
Dundalk (AW) 1 0 0% −1.00
Limerick 1 0 0% −1.00
Listowel 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 9 0 0% −9.00
1m – 1m1f 2 0 0% −2.00

JockeyRunsWinsSR£1
Mark Enright 3 0 0% −3.00
Killian Hennessy 3 0 0% −3.00
Joe Doyle 2 0 0% −2.00
Shane Crosse 2 0 0% −2.00
Ms S Verling 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 6 0 0% −6.00
Tongue tie 4 0 0% −4.00
Cheekpieces 1 0 0% −1.00

SeasonRunsWinsSR£1
2021 6 0 0% −6.00
2020 5 0 0% −5.00

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 · 6 runs
19 Aug 21+17d Killarney Irish Examiner Handicap (45-65) (Div 2) 8f · Good · 15 ran 12/15 hd 8-10 4566C48A Joe Doyle 28/1
02 Aug 21+40d Naas Naas Business Club Handicap (45-65) 6f · Good · 24 ran 16/24 nk 8-4 4763C44A Ms S Verling 50/1
23 Jun 21+14d Naas Naas Racecourse Handicap (45-65) (Div 1) 6f · Good · 17 ran 13/17 nk 9-0 4973C51A Mark Enright 33/1
09 Jun 21+7d Cork Fermoy Handicap (45-65) (Div 2) 7f · Yielding · 19 ran 15/19 1 9-3 52100C55A Mark Enright 11/1
02 Jun 21+30d Curragh Sporting Life Handicap (45-70) 6.5f · Yielding · 30 ran 5/30 3¼ 9-0 5474C79A Joe Doyle 66/1
03 May 21+187d Curragh Sentinel Ireland Handicap (45-75) 6f · Yielding To Soft · 28 ran 8/28 hd 8-12 5771C64A Mark Enright 66/1
2020 · 5 runs
28 Oct 20+18d Dundalk (AW) HOLLYWOODBETS Handicap (45-65) (Div 2) 7f · Standard · 14 ran 11/14 3¾ 10-0 6473B54A Shane Crosse 33/1
10 Oct 20+11d Limerick Adare Apprentice Handicap (45-70) 7f · Heavy · 16 ran 14/16 1½ 10-1 6637C55C Shane Crosse 25/1
29 Sep 20+7d Cork Fermoy Maiden 7f · Good · 14 ran 6/14 2½ 9-0 —111C61A Killian Hennessy 300/1
22 Sep 20+34d Listowel Jet & Peggy O'Carroll Memorial (C & G) Maiden 7f · Good · 8 ran 7/8 4¼ 9-0 —80A44A Killian Hennessy 200/1
19 Aug 20 Killarney Counihan & Sons Ltd Median Auction Maiden 8f · Soft To Heavy · 11 ran 11/11 4¾ 9-0 —68A33A Killian Hennessy 66/1

Quick answers

How many races has Silverback Jack won?
Silverback Jack (IRE) has yet to win, from 11 archived starts between 2020 and 2021.
Who trained Silverback Jack?
Silverback Jack (IRE) was trained by M J Byrne on the most recent run on record, at Killarney on 19 August 2021.
Who is Silverback Jack's sire?
Silverback Jack (IRE) is by Zebedee (GB) out of Emma's Surprise (GB), whose sire is Tobougg.
What is Silverback Jack's official rating?
The most recent official rating on record is 45, from the run on 19 August 2021. The highest on record is 66.
What is Silverback Jack's sire's record?
Zebedee (GB)'s progeny in our archive have won 9% of 7,139 runs since Jan 2008 (435 horses), Flat and jumps together.
Who are Silverback Jack's siblings?
Out of Emma's Surprise (GB), Silverback Jack (IRE) has 3 other produce in our archive, 2 of them winners. Most wins: Mr Knightley (IRE) (6). Highest grade won: Class 6 (Mr Knightley (IRE)). The wins came over 5f–1m. As at Oct 2026.

Record shown from August 2020. 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.