8yo gelding (at last run, Aug 2006)· Last trainer J J Lambe· Last owner J P Kearney
by Sexton Blake (GB) out of Dockmaid (IRE) (Dock Leaf)
16 runs · 13 courses · from Jun 2005
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 28 Aug 2006 — 7,358 days ago. Our archive can't say whether the horse is still in training.
Last run Aug 2006Won at CartmelLast raced off OR 78
KTB Profile
Diamond Jack (IRE) is 1 from 16, the win coming at Class 5 level. Hasn't won since Aug 2005. The win came on good or faster ground (0 from 6 on softer).
Based on 16 archived runs · updated 21 Oct 2026
KTB at a glanceWins on good or fasterWin at Class 5
A/E compares actual wins with what starting prices implied. "Fair" strips the bookmaker margin from the expectation, so favourites and longshots are judged on the same footing — figures near 1.00 mean the market priced this horse about right.
Official rating78↓ 7lb off peak
7875–85
KTB Speed and Rating
KTB Speed
No KTB Speed figures for this horse. The engine scores GB and Irish racing from Oct 2016; runs elsewhere, or earlier, have no figure.
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 0 figures from 0 runs · a record, not a forecast
KTB Rating
Best recent KTB Rating72Cthe best of the last 3 rated runs · Downpatrick (IRE), 13 Aug 2006Official rating 78at the last run, 28 Aug 2006
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 →
Jumps 11 figures · best 114C · median 83
Going
Runs
Best
Median
Since 21 Oct 2025
Good
3
95C
72
—
Good to Firm
3
88C
79
—
Good to Soft
2
114C
103.5
—
Soft
2
86C
84.5
—
Firm
1
—
—
—
Distance
Runs
Best
Median
Since 21 Oct 2025
1m5f – 2m
7
93C
83
—
2m1f – 2m4f
4
114C
87
—
Of 16 runs looked at, 5 have no figure: did not complete (or a non-runner row) (3) · no runner of known ability in the race — the level cannot be solved (2).
KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 11 figures from 16 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
Sexton Blake (GB)
Progeny in our archive have won 2.9% of 34 runs since Jan 2005 (4 horses).
Going
Runs
Wins
SR
vs sire
This horse
Firm
2
0
0%
−2.9
0 from 1
Good to Firm
10
0
0%
−2.9
0 from 4
Good
10
1
10%
+7.1
1 from 5
Good to Soft
4
0
0%
−2.9
0 from 3
Soft
7
0
0%
−2.9
0 from 3
Heavy
1
0
0%
−2.9
—
Distance (all codes)
Runs
Wins
SR
vs sire
This horse
1m5f – 2m
12
0
0%
−2.9
0 from 9
2m1f – 2m4f
18
1
5.6%
+2.7
1 from 7
2m5f – 3m
3
0
0%
−2.9
—
Over 3m
1
0
0%
−2.9
—
Flat and jumps together (all codes) · since Jan 2005 · as at 21 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
Dam
Dockmaid (IRE) (Dock Leaf)
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
Going
Runs
Wins
SR
£1
Good
5
1
20%
+1.50
Good to Firm
4
0
0%
−4.00
Good to Soft
3
0
0%
−3.00
Soft
3
0
0%
−3.00
Firm
1
0
0%
−1.00
Class
Runs
Wins
SR
£1
Class 5
4
1
25%
+2.50
Class 4
3
0
0%
−3.00
Course
Runs
Wins
SR
£1
Cartmel
2
1
50%
+4.50
Sedgefield
2
0
0%
−2.00
Perth
2
0
0%
−2.00
Downpatrick (IRE)
1
0
0%
−1.00
Down Royal
1
0
0%
−1.00
Hexham
1
0
0%
−1.00
Sligo
1
0
0%
−1.00
Tramore
1
0
0%
−1.00
Cork
1
0
0%
−1.00
Wexford (RH) (IRE)
1
0
0%
−1.00
Killarney
1
0
0%
−1.00
Clonmel
1
0
0%
−1.00
Wexford
1
0
0%
−1.00
Distance
Runs
Wins
SR
£1
1m5f – 2m
9
0
0%
−9.00
2m1f – 2m4f
7
1
14%
−0.50
Jockey
Runs
Wins
SR
£1
W Slattery
7
0
0%
−7.00
John McNamara
4
1
25%
+2.50
P C O'Neill
2
0
0%
−2.00
A E Lynch
1
0
0%
−1.00
Mr D MacAuley
1
0
0%
−1.00
Denis O'Regan
1
0
0%
−1.00
Headgear
Runs
Wins
SR
£1
Cheekpieces
8
1
13%
−1.50
Blinkers
7
0
0%
−7.00
None
1
0
0%
−1.00
Season
Runs
Wins
SR
£1
2006
5
0
0%
−5.00
2005
11
1
9%
−4.50
Type
Runs
Wins
SR
£1
Hurdle
15
1
7%
−8.50
Chase
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.
Diamond Jack (IRE) won 1 of 16 archived starts between 2005 and 2006, a strike rate of 6.3%. Placed 2 times in total (12.5% of starts).
Who trained Diamond Jack (IRE)?
Diamond Jack (IRE) was trained by J J Lambe on the most recent run on record, at Cartmel on 28 August 2006.
Who is Diamond Jack (IRE)'s sire?
Diamond Jack (IRE) is by Sexton Blake (GB) out of Dockmaid (IRE), whose sire is Dock Leaf.
What going does Diamond Jack (IRE) prefer?
Diamond Jack (IRE) has the best record on good going: 1 win from 5 starts (20%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is Diamond Jack (IRE)'s official rating?
The most recent official rating on record is 78, from the run on 28 August 2006. The highest on record is 85.
What is Diamond Jack (IRE)'s sire's record?
Sexton Blake (GB)'s progeny in our archive have won 2.9% of 34 runs since Jan 2005 (4 horses), Flat and jumps together.
Diamond Jack (IRE)·1–16·SR 6.3%
KTB
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