Horse profile
Diligent Resdev (GB)
by Due Diligence (USA) out of Doobahdeedoo (USA) (Animal Kingdom)
18 runs · 13 courses · from Nov 2023
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
3 wins · Ayr, York & Newcastle (AW)
Ran 5 days ago · 6th of 11
Last raced off OR 78
KTB Profile
Diligent Resdev is a gelding with three wins from 18 starts. All three wins have come over 6f – 7f, including a Class 2 handicap at Ayr on good ground in Sep 2024 and a Class 3 handicap at York on good ground in May 2024. He also won a Class 4 maiden at Newcastle on standard going in Nov 2023. His last run, at Southwell in Oct 2026, saw him finish sixth of 11 off an official rating of 78.
Based on 18 archived runs · run-style from 14 commented runs · updated 21 Oct 2026
KTB at a glance
OR ↓ 8lb off peak
- 3–18Wins / Runs
- 16.7%Strike rate
- 7 (38.9%)Placed
- +74.00£1 level staken=18 at SP
- 1.50Fair A/E n=18 · 1.27 incl. margin
- 86Highest OR
- 63dAvg between runs
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↓ 8lb off peak
78
76–86
KTB Speed and Rating
KTB Speed
Best recent Speed 107
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
| Going | Runs | Best | Median | Since 21 Oct 2025 |
|---|---|---|---|---|
| Good to Firm | 6 | 122A | 107 | 2 · 122 / 114.5 |
| Standard (AW) | 4 | 109B | 83.5 | 2 · 90 / 83.5 |
| Good | 4 | 119C | 90 | 1 · — |
| Good to Soft | 3 | 90A | 70 | 1 · — |
| Soft | 1 | — | — | — |
| Distance | Runs | Best | Median | Since 21 Oct 2025 |
|---|---|---|---|---|
| 6f – 7f | 16 | 122A | 92.5 | 5 · 122 / 77 |
| 1m – 1m1f | 2 | 90A | 89 | 1 · — |
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 18 figures from 18 runs · as at 21 Oct 2026 · 1 recent figure provisional (may move for 7 days) · 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 from 14 analysed runs
- Midfield 7 (50%) · 1 win
- Prominent 4 (29%) · 0 wins
- Held up 3 (21%) · 0 wins
Pedigree intelligence
Sire
Progeny in our archive have won 10.3% of 2,545 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 6 |
| Good | 528 | 51 | 9.7% | −0.6 | 2 from 4 |
| Good to Soft | 217 | 24 | 11.1% | +0.8 | 0 from 3 |
| Soft | 202 | 24 | 11.9% | +1.6 | 0 from 1 |
| Heavy | 52 | 5 | 9.6% | −0.7 | — |
| Standard (AW) | 1,122 | 110 | 9.8% | −0.5 | 1 from 4 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 484 | 58 | 12% | +1.7 | — |
| 6f – 7f | 1,375 | 150 | 10.9% | +0.6 | 3 from 16 |
| 1m – 1m1f | 440 | 35 | 8% | −2.3 | 0 from 2 |
| 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 20 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
Dam
Doobahdeedoo (USA) (Animal Kingdom)
4 siblings in the archive, 2 winners — best of them Nammos (GB) (3 wins).
The wins came over 7f–1m2f; the highest grade won is Class 5 (Nammos (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Nammos (GB) | 35 | 3 | 7f–1m | Class 5 |
| Baloo's Blues (GB) | 11 | 1 | 1m2f | Class 6 |
| Mr Resdev (GB) | 2 | 0 | — | — |
| Resdev Time (GB) | 13 | 0 | — | — |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good to Firm | 6 | 0 | 0% | −6.00 |
| Standard (AW) | 4 | 1 | 25% | +30.00 |
| Good | 4 | 2 | 50% | +54.00 |
| Good to Soft | 3 | 0 | 0% | −3.00 |
| Soft | 1 | 0 | 0% | −1.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 4 | 9 | 1 | 11% | +25.00 |
| Class 3 | 6 | 1 | 17% | +35.00 |
| Class 2 | 2 | 1 | 50% | +15.00 |
| Class 5 | 1 | 0 | 0% | −1.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| York | 3 | 1 | 33% | +38.00 |
| Southwell (AW) | 2 | 0 | 0% | −2.00 |
| Redcar | 2 | 0 | 0% | −2.00 |
| Newcastle (AW) | 2 | 1 | 50% | +32.00 |
| Doncaster | 1 | 0 | 0% | −1.00 |
| Beverley | 1 | 0 | 0% | −1.00 |
| Haydock | 1 | 0 | 0% | −1.00 |
| Sandown | 1 | 0 | 0% | −1.00 |
| Ascot | 1 | 0 | 0% | −1.00 |
| Musselburgh | 1 | 0 | 0% | −1.00 |
| Ayr | 1 | 1 | 100% | +16.00 |
| Goodwood | 1 | 0 | 0% | −1.00 |
| Thirsk | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 6f – 7f | 16 | 3 | 19% | +76.00 |
| 1m – 1m1f | 2 | 0 | 0% | −2.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Joanna Mason | 10 | 1 | 10% | +31.00 |
| Billy Garritty | 4 | 1 | 25% | +30.00 |
| Shay Farmer | 1 | 0 | 0% | −1.00 |
| James Sullivan | 1 | 0 | 0% | −1.00 |
| Lewis Chalkley | 1 | 1 | 100% | +16.00 |
| Jason Hart | 1 | 0 | 0% | −1.00 |
| Headgear | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Visor | 10 | 1 | 10% | +7.00 |
| None | 8 | 2 | 25% | +67.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2026 | 6 | 0 | 0% | −6.00 |
| 2025 | 5 | 0 | 0% | −5.00 |
| 2024 | 6 | 2 | 33% | +52.00 |
| 2023 | 1 | 1 | 100% | +33.00 |
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
| Date | Course | Race | Pos | Btn | Wgt | OR | Spd | KTB | Jockey | SP |
|---|---|---|---|---|---|---|---|---|---|---|
| 15 Oct 26+6d | Southwell (AW) | Free Race Replays On attheraces.com Handicap Stakes Raced in midfield - urged 3f out without finding anything - weakened to finish 6th | 6/11 | 2¾ | 9-12 | 78 | 90A | 78A | Joanna Mason | 14/1 |
| 09 Oct 26+36d | York | Pj Staffing Group Apprentice Handicap Stakes Prominent early - challenged for the lead over 2f out - drifted left and faded over 1f out - finished 11th | 11/20 | nk | 9-8 | 78 | 70C | 80A | Shay Farmer | 17/2 |
| 03 Sep 26+75d | Southwell (AW) | Bettingsites.co.uk Handicap Stakes Held up towards the back - driven with over a furlong left but couldn't land a challenge - finished sixth | 6/12 | hd | 9-9 | 80 | 77A | 90A | Joanna Mason | 6/1 |
| 20 Jun 26+21d | Doncaster | Free Tips On attheraces.com Handicap Bumped at the break - settled near the back - driven approaching 2f out but unable to find any headway - finished 9th | 9/11 | 1 | 9-6 | 82 | 107A | 76A | James Sullivan | 12/1 |
| 30 May 26+21d | Beverley | Happy Birthday Colin 'Spud' Stamford Handicap Hampered leaving the stalls - settled at the back of the field - made progress on the outside inside the final furlong and stayed on to finish 6th | 6/11 | ½ | 9-7 | 83 | 122A | 92A | Joanna Mason | 9/2 |
| 09 May 26+275d | Haydock | Pertemps Handicap Settled in the pack - asked for effort with 2f left - drifted left and found nothing more - eventually finished 9th | 9/10 | ¾ | 9-8 | 84 | 69C | 75A | Billy Garritty | 9/2 |
| 07 Aug 25+54d | Sandown | Ultimate Summer Handicap Sat close to the front group early - pushed along with 2f left then lost touch approaching the furlong marker - faded in the closing stages to finish sixth | 6/7 | 2 | 10-2 | 85 | 88B | 80A | Billy Garritty | 2/1F |
| 14 Jun 25+19d | York | Doug Johnstone Memorial. Ubettabelieveit Macmillan Handicap Settled with the pack early - moved right for room approaching final 2f - gained ground and drifted left inside last furlong - up into 3rd close home and stayed on for the finish | 3/13 | ½ | 9-6 | 85 | 112C | 93A | Joanna Mason | 6/1 |
| 26 May 25+16d | Redcar | Celebrating 30 Years Of Jacks Coaches Handicap Hampered and swerved at the off - settled in the pack - lost touch with the front markers approaching halfway - responded in the final furlong to close but held for 3rd | 3/8 | 1 | 9-9 | 85 | 105A | 99A | Joanna Mason | 5/4F |
| 10 May 25+21d | Ascot | Schweppes Victoria Cup (Heritage Handicap) Sat behind the front group - moved into command with two furlongs left before giving way approaching the last furlong - lost momentum in the closing stages to finish fifth | 5/17 | ½ | 8-5 | 86 | 107C | 89A | Joanna Mason | 16/1 |
| 19 Apr 25+211d | Musselburgh | Virgin Bet Every Saturday Money Back Silver Arrow Handicap Settled in the pack - urged into contention over 2f out and moved left to close on the front group - stayed on well inside final furlong - closing fastest of all at the line to finish third beaten a length | 3/9 | nk | 9-0 | 85 | 90A | 101A | Joanna Mason | 10/1 |
| 20 Sep 24+29d | Ayr | Virgin Bet Ayr Bronze Cup Handicap Settled midpack away from the rail early - shifted course with 2f remaining - pushed along and closed on the front group inside the final furlong - swept to the front with a furlong left - drew away to score | 1/24 | 9-5 | 79 | 119C | 93A | Lewis Chalkley | 16/1 | |
| 22 Aug 24+21d | Newcastle (AW) | Tote.co.uk Pure Belta Racing League Race 34 Handicap (Trainers Registered To Racing League) Handy in the early stages - pressed for effort with 2f left - flattened out unable to close the gap inside the final furlong - shifted right and stayed on late to finish 5th beaten 2 lengths | 5/14 | hd | 8-12 | 79 | 109B | 85A | Jason Hart | 14/1 |
| 01 Aug 24+46d | Goodwood | HKJC World Pool Handicap Settled around midpack - squeezed for space and slipped towards the back 4f out - pushed along inside final 2f but unable to gain on leaders | 11/14 | 1 | 8-13 | 80 | 88C | 73A | Joanna Mason | 22/1 |
| 16 Jun 24+32d | Thirsk | Sky Bet Build A Bet Handicap | 5/10 | ½ | 8-12 | 81 | 56A | 85A | Joanna Mason | 9/2J |
| 15 May 24+13d | York | Conundrum Hr Consulting Handicap | 1/15 | 8-4 | 76 | 92C | 93A | Joanna Mason | 40/1 | |
| 02 May 24+173d | Redcar | Join Racing TV Restricted Novice Stakes (GBB Race) | 3/12 | 1½ | 9-11 | — | 93B | 89A | Billy Garritty | 13/2 |
| 11 Nov 23 | Newcastle (AW) | Virgin Bet Best Odds Daily Cock O'The North EBF Maiden Stakes (GBB Race) (Div 1) | 1/9 | 9-7 | — | 77A | 80A | Billy Garritty | 33/1 |
Quick answers
- How many races has Diligent Resdev (GB) won?
- Diligent Resdev (GB) won 3 of 18 archived starts between 2023 and 2026, a strike rate of 16.7%. Placed 7 times in total (38.9% of starts).
- Who trains Diligent Resdev (GB)?
- Diligent Resdev (GB) is trained by Michael & David Easterby, who saddled the horse on its most recent run on 15 October 2026.
- Who is Diligent Resdev (GB)'s sire?
- Diligent Resdev (GB) is by Due Diligence (USA) out of Doobahdeedoo (USA), whose sire is Animal Kingdom.
- What going does Diligent Resdev (GB) prefer?
- Diligent Resdev (GB) has the best record on good going: 2 wins from 4 starts (50%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
- What is Diligent Resdev (GB)'s official rating?
- The most recent official rating on record is 78, from the run on 15 October 2026. The highest on record is 86.
- What is Diligent Resdev (GB)'s sire's record?
- Due Diligence (USA)'s progeny in our archive have won 10.3% of 2,545 runs since Jan 2008 (193 horses), Flat and jumps together.
- Who are Diligent Resdev (GB)'s siblings?
- Out of Doobahdeedoo (USA), Diligent Resdev (GB) has 4 other produce in our archive, 2 of them winners. Most wins: Nammos (GB) (3). Highest grade won: Class 5 (Nammos (GB)). The wins came over 7f–1m2f. As at Oct 2026.