How many races has Diligent Lass won?

Diligent Lass (GB) has yet to win, from 2 archived starts in 2019.

Who trained Diligent Lass?

Diligent Lass (GB) was trained by Michael Blanshard on the most recent run on record, at Chepstow on 26 August 2019.

Who is Diligent Lass's sire?

Diligent Lass (GB) is by Due Diligence (USA) out of Sunny York (IRE), whose sire is Vale Of York.

Who are Diligent Lass's siblings?

Out of Sunny York (IRE), Diligent Lass (GB) has 4 other produce in our archive, 3 of them winners. Most wins: Sisters In The Sky (GB) (9). Highest grade won: Class 2 (Sisters In The Sky (GB)). The wins came over 5f–1m½f. As at Oct 2026.

Horse profile

Diligent Lass (GB)

2yo filly (at last run, Aug 2019) · Last trainer Michael Blanshard · Last owner Lady Eliza Mays Smith

by Due Diligence (USA) out of Sunny York (IRE) (Vale Of York)

2 runs · 2 courses · from Jul 2019

As at 27 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily

No run recorded since 26 Aug 2019 — 2,619 days ago. Our archive can't say whether the horse is still in training.

Last run Aug 2019 · 4th of 5

KTB Profile

Lightly raced, with 2 archived starts between Jul 2019 and Aug 2019, the last of them as a 2yo filly. Finished 4 of 5 at Chepstow last time. By Due Diligence (USA), whose progeny in our archive have won 10.3% of 2,552 runs since Jan 2008.

Based on 2 archived runs · updated 27 Oct 2026

0–2Wins / Runs
0%Strike rate
0 (0%)Placed
−2.00£1 level staken=2 at SP
33dAvg between runs

KTB Speed and Rating

KTB Speed

Best recent Speed — no A or B graded figure in the last 3 runs; the figures below carry grade C

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 2 figures · best 62^C · median 44.5

Going	Runs	Best	Median	Since 27 Oct 2025
Good	1	—	—	—
Good to Firm	1	—	—	—

Distance	Runs	Best	Median	Since 27 Oct 2025
6f – 7f	2	62^C	44.5	—

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 2 figures from 2 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 38^C the best of the last 2 rated runs · Lingfield, 24 Jul 2019

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 2 figures · best 38^C · median 32.5

Going	Runs	Best	Median	Since 27 Oct 2025
Good	1	—	—	—
Good to Firm	1	—	—	—

Distance	Runs	Best	Median	Since 27 Oct 2025
6f – 7f	2	38^C	32.5	—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 2 figures from 2 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 2,552 runs since Jan 2008 (193 horses).

Going	Runs	Wins	SR	vs sire	This horse
Firm	11	1	9.1%	−1.2	—
Good to Firm	413	47	11.4%	+1.1	0 from 1
Good	528	51	9.7%	−0.6	0 from 1
Good to Soft	217	24	11.1%	+0.8	—
Soft	203	24	11.8%	+1.5	—
Heavy	53	5	9.4%	−0.9	—
Standard (AW)	1,127	111	9.8%	−0.5	—

Distance (all codes)	Runs	Wins	SR	vs sire	This horse
Under 6f	486	59	12.1%	+1.8	—
6f – 7f	1,379	150	10.9%	+0.6	0 from 2
1m – 1m1f	441	35	7.9%	−2.4	—
1m2f – 1m4f	223	19	8.5%	−1.8	—
1m5f – 2m	16	0	0%	−10.3	—
2m1f – 2m4f	7	0	0%	−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

Sunny York (IRE) (Vale Of York)

4 siblings in the archive, 3 winners — best of them Sisters In The Sky (GB) (9 wins).

The wins came over 5f–1m½f; the highest grade won is Class 2 (Sisters In The Sky (GB)).

Produce	Runs	Wins	Win trips	Best grade
Sisters In The Sky (GB)	95	9	5f–7f	Class 2
Cuban Storm (GB)	12	1	5f	Class 5
Hot Day (GB)	33	1	1m½f	Class 6
Winter Bonfire (GB)	2	0	—	—

Too few runs for meaningful splits. The full record is below.

Form

Date	Course	Race	Pos	Btn	Wgt	Spd	KTB	Jockey	SP
2019 · 2 runs
26 Aug 19+33d	Chepstow	comparebettingsites.com Online Betting Fillies' Novice Auction Stakes (Plus 10) Class 5 · 7f · Good · 5 ran	4/5	13	9-0	62^C	27^C	Daniel Muscutt	50/1
24 Jul 19	Lingfield	Follow At The Races On Twitter Novice Auction Stakes Class 6 · 7f · Good To Firm · 15 ran	13/15	10	8-5	27^C	38^C	Darragh Keenan	100/1

Quick answers

How many races has Diligent Lass won?: Diligent Lass (GB) has yet to win, from 2 archived starts in 2019.
Who trained Diligent Lass?: Diligent Lass (GB) was trained by Michael Blanshard on the most recent run on record, at Chepstow on 26 August 2019.
Who is Diligent Lass's sire?: Diligent Lass (GB) is by Due Diligence (USA) out of Sunny York (IRE), whose sire is Vale Of York.
What is Diligent Lass's sire's record?: Due Diligence (USA)'s progeny in our archive have won 10.3% of 2,552 runs since Jan 2008 (193 horses), Flat and jumps together.
Who are Diligent Lass's siblings?: Out of Sunny York (IRE), Diligent Lass (GB) has 4 other produce in our archive, 3 of them winners. Most wins: Sisters In The Sky (GB) (9). Highest grade won: Class 2 (Sisters In The Sky (GB)). The wins came over 5f–1m½f. As at Oct 2026.