Heartstring (GB)
Heartstring (GB) is yet to win from 6 starts. Best effort: 4th of 10 at Ripon (Aug 2018).
Progeny in our archive
As a dam, Heartstring (GB) has 3 produce in the archive, 1 winner — most wins Dothan (GB) (1 win).
The wins came over 5f; the highest grade won is Class 4 (Dothan (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Dothan (GB) | 12 | 1 | 5f | Class 4 |
| Twilight Dawn (GB) | 10 | 0 | — | — |
| Spruce (GB) | 2 | 0 | — | — |
- 0–6Wins / Runs
- 0%Strike rate
- 0 (0%)Placed
- −6.00£1 level staken=6 at SP
- 0.00Fair A/E n=6 · 0.00 incl. margin
- 68Highest OR
- 54dAvg 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.
KTB Speed and Rating
Best recent Speed 85
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 →
| Going | Runs | Best | Median | Since 21 Oct 2025 |
|---|---|---|---|---|
| Standard (AW) | 2 | 61A | 55.5 | — |
| Good | 2 | 85A | 72 | — |
| Good to Firm | 1 | — | — | — |
| Good to Soft | 1 | — | — | — |
| Distance | Runs | Best | Median | Since 21 Oct 2025 |
|---|---|---|---|---|
| Under 6f | 6 | 85A | 63 | — |
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 6 figures from 6 runs · as at 3 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
Progeny in our archive have won 9.5% of 2,938 runs since Jan 2008 (208 horses).
Weakest on heavy going: 6.4% from 125.
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 6 | 0 | 0% | −9.5 | — |
| Good to Firm | 382 | 38 | 9.9% | +0.4 | 0 from 1 |
| Good | 633 | 53 | 8.4% | −1.1 | 0 from 2 |
| Good to Soft | 256 | 20 | 7.8% | −1.7 | 0 from 1 |
| Soft | 459 | 44 | 9.6% | +0.1 | — |
| Heavy | 125 | 8 | 6.4% | −3.1 | — |
| Standard (AW) | 1,077 | 115 | 10.7% | +1.2 | 0 from 2 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 364 | 36 | 9.9% | +0.4 | 0 from 6 |
| 6f – 7f | 1,375 | 135 | 9.8% | +0.3 | — |
| 1m – 1m1f | 576 | 50 | 8.7% | −0.8 | — |
| 1m2f – 1m4f | 387 | 34 | 8.8% | −0.7 | — |
| 1m5f – 2m | 171 | 21 | 12.3% | +2.8 | — |
| 2m1f – 2m4f | 57 | 2 | 3.5% | −6 | — |
| 2m5f – 3m | 8 | 0 | 0% | −9.5 | — |
Flat and jumps together (all codes) · since Jan 2008 · as at 21 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
8 siblings in the archive, 7 winners — best of them Dutch Decoy (GB) (11 wins).
The wins came over 5f–1m½f; the highest grade won is Group 3 (Dutch Masterpiece (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Dutch Decoy (GB) | 85 | 11 | 6f–1m½f | Class 2 |
| Dutch Masterpiece (GB) | 29 | 7 | 5f | Group 3 |
| Image (GB) | 13 | 4 | 7f–1m | Class 4 |
| Hilary J (GB) | 15 | 3 | 5f–6f | Class 5 |
| Dinneratmidnight (GB) | 20 | 3 | 6f | Class 4 |
| Beachwood Bay (GB) | 24 | 3 | 6f–7f | Class 6 |
| Miss Bunter (GB) | 13 | 3 | 5f–6f | Class 5 |
| Yulong Baokui (GB) | 4 | 0 | — | — |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Standard (AW) | 2 | 0 | 0% | −2.00 |
| Good | 2 | 0 | 0% | −2.00 |
| Good to Firm | 1 | 0 | 0% | −1.00 |
| Good to Soft | 1 | 0 | 0% | −1.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 5 | 5 | 0 | 0% | −5.00 |
| Class 4 | 1 | 0 | 0% | −1.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Newcastle (AW) | 1 | 0 | 0% | −1.00 |
| Lingfield (AW) | 1 | 0 | 0% | −1.00 |
| Catterick | 1 | 0 | 0% | −1.00 |
| Ripon | 1 | 0 | 0% | −1.00 |
| Beverley | 1 | 0 | 0% | −1.00 |
| Thirsk | 1 | 0 | 0% | −1.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Joe Fanning | 2 | 0 | 0% | −2.00 |
| Jason Hart | 2 | 0 | 0% | −2.00 |
| Sean Davis | 1 | 0 | 0% | −1.00 |
| Paddy Mathers | 1 | 0 | 0% | −1.00 |
| Headgear | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| None | 5 | 0 | 0% | −5.00 |
| Hood | 1 | 0 | 0% | −1.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2019 | 1 | 0 | 0% | −1.00 |
| 2018 | 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
| Date | Course | Race | Pos | Btn | Wgt | OR | Spd | KTB | Jockey | SP |
|---|---|---|---|---|---|---|---|---|---|---|
| 03 May 19+164d | Newcastle (AW) | That's Why I Fly From Newcastle Handicap | 6/6 | 2½ | 8-5 | 63 | 50C | 20C | Sean Davis | 33/1 |
| 20 Nov 18+59d | Lingfield (AW) | Ladbrokes Home Of The Odds Boost Nursery | 7/8 | 5 | 9-0 | 67 | 61A | 45A | Joe Fanning | 33/1 |
| 22 Sep 18+25d | Catterick | Book Now For Saturday 20th October Nursery | 10/11 | nk | 9-0 | 68 | 59A | 38A | Paddy Mathers | 16/1 |
| 28 Aug 18+12d | Ripon | Download The Free At The Races App Fillies' Novice Stakes (Plus 10) | 4/10 | nk | 9-0 | — | 85A | 67A | Joe Fanning | 6/1 |
| 16 Aug 18+12d | Beverley | EBF Fillies' Novice Stakes (Plus 10) | 4/14 | nk | 8-11 | — | 76C | 70A | Jason Hart | 12/1 |
| 04 Aug 18 | Thirsk | Celebrating Laura Barry's 26th Birthday - EBF Novice Stakes (Plus 10) | 6/12 | 1 | 8-11 | — | 65A | 59A | Jason Hart | 20/1 |
Quick answers
- How many races has Heartstring (GB) won?
- Heartstring (GB) has yet to win, from 6 archived starts between 2018 and 2019.
- Who trained Heartstring (GB)?
- Heartstring (GB) was trained by Ann Duffield on the most recent run on record, at Newcastle (AW) on 3 May 2019.
- Who is Heartstring (GB)'s sire?
- Heartstring (GB) is by Slade Power (IRE) out of The Terrier (GB), whose sire is Foxhound.
- What is Heartstring (GB)'s official rating?
- The most recent official rating on record is 63, from the run on 3 May 2019. The highest on record is 68.
- What is Heartstring (GB)'s sire's record?
- Slade Power (IRE)'s progeny in our archive have won 9.5% of 2,938 runs since Jan 2008 (208 horses), Flat and jumps together. Weakest on heavy going: 6.4% from 125.
- Who are Heartstring (GB)'s siblings?
- Out of The Terrier (GB), Heartstring (GB) has 8 other produce in our archive, 7 of them winners. Most wins: Dutch Decoy (GB) (11). Highest grade won: Group 3 (Dutch Masterpiece (GB)). The wins came over 5f–1m½f. As at Oct 2026.
- Has Heartstring (GB) produced winners?
- As a dam, Heartstring (GB) has 3 produce in our archive, 1 of them a winner. Most wins: Dothan (GB) (1). Highest grade won: Class 4 (Dothan (GB)). The wins came over 5f. As at Oct 2026.