Dioptase (IRE)
Dioptase (IRE) is yet to win from 9 starts, though has placed 5 times. Best effort: 2nd of 5 at Clairefontaine (FR) (Aug 2026).
- 0–9Wins / Runs
- 0%Strike rate
- 5 (55.6%)Placed
- −9.00£1 level staken=9 at SP
- 0.00Fair A/E n=9 · 0.00 incl. margin
- 104Highest OR
- 64dAvg 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
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
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 14.4% of 3,928 runs since Jan 2008 (419 horses).
Weakest at trips under 6f (all codes): 10.8% from 102.
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 8 | 0 | 0% | −14.4 | — |
| Good to Firm | 586 | 92 | 15.7% | +1.3 | — |
| Good | 991 | 140 | 14.1% | −0.3 | 0 from 3 |
| Good to Soft | 466 | 69 | 14.8% | +0.4 | 0 from 2 |
| Soft | 609 | 78 | 12.8% | −1.6 | 0 from 1 |
| Heavy | 167 | 25 | 15% | +0.6 | 0 from 2 |
| Standard (AW) | 1,101 | 160 | 14.5% | +0.1 | 0 from 1 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 102 | 11 | 10.8% | −3.6 | — |
| 6f – 7f | 1,174 | 182 | 15.5% | +1.1 | — |
| 1m – 1m1f | 1,251 | 164 | 13.1% | −1.3 | 0 from 4 |
| 1m2f – 1m4f | 1,076 | 161 | 15% | +0.6 | 0 from 5 |
| 1m5f – 2m | 268 | 39 | 14.6% | +0.2 | — |
| 2m1f – 2m4f | 52 | 7 | 13.5% | −0.9 | — |
| 2m5f – 3m | 5 | 0 | 0% | −14.4 | — |
Flat and jumps together (all codes) · since Jan 2008 · as at 18 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
1 sibling in the archive, 0 winners.
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Autoroute (IRE) | 4 | 0 | — | — |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good | 3 | 0 | 0% | −3.00 |
| Good to Soft | 2 | 0 | 0% | −2.00 |
| Heavy | 2 | 0 | 0% | −2.00 |
| Standard (AW) | 1 | 0 | 0% | −1.00 |
| Soft | 1 | 0 | 0% | −1.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 2 | 3 | 0 | 0% | −3.00 |
| Class 1 | 1 | 0 | 0% | −1.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Chantilly (FR) | 2 | 0 | 0% | −2.00 |
| Longchamp (FR) | 1 | 0 | 0% | −1.00 |
| Clairefontaine (FR) | 1 | 0 | 0% | −1.00 |
| Dieppe (FR) | 1 | 0 | 0% | −1.00 |
| Saint-Cloud | 1 | 0 | 0% | −1.00 |
| Marseille Borely (FR) | 1 | 0 | 0% | −1.00 |
| Compiegne (FR) | 1 | 0 | 0% | −1.00 |
| Saint-Cloud (FR) | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 1m2f – 1m4f | 5 | 0 | 0% | −5.00 |
| 1m – 1m1f | 4 | 0 | 0% | −4.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Cristian Demuro | 4 | 0 | 0% | −4.00 |
| Marvin Grandin | 3 | 0 | 0% | −3.00 |
| C. Soumillon | 1 | 0 | 0% | −1.00 |
| Alexis Pouchin | 1 | 0 | 0% | −1.00 |
| Headgear | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| None | 7 | 0 | 0% | −7.00 |
| Blinkers | 1 | 0 | 0% | −1.00 |
| Cheekpieces | 1 | 0 | 0% | −1.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2026 | 6 | 0 | 0% | −6.00 |
| 2025 | 3 | 0 | 0% | −3.00 |
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 | Jockey | SP |
|---|---|---|---|---|---|---|---|---|
| 04 Oct 26+15d | Longchamp (FR) | Qatar Prix de la Place de l'Etoile | 4/18 | shd | 8-12 | — | Cristian Demuro | 28/1 |
| 19 Sep 26+29d | Chantilly (FR) | Prix Tilbury - Gueudet Agri Oise&Marne | 6/9 | nk | 8-11 | — | C. Soumillon | 3/1 |
| 21 Aug 26+22d | Clairefontaine (FR) | Prix Fromagerie Graindorge (Prix De Guernesey) | 2/5 | shd | 8-11 | 104 | Cristian Demuro | 4/1 |
| 30 Jul 26+32d | Dieppe (FR) | Prix De Fromainville | 2/9 | 1½ | 8-11 | 104 | Alexis Pouchin | 16/1 |
| 28 Jun 26+28d | Saint-Cloud | Armos Stakes | 5/7 | ¾ | 8-12 | 104 | Cristian Demuro | 5/1 |
| 31 May 26+258d | Chantilly (FR) | RMC Grand Handicap de Chantilly (Turf) | 13/17 | hd | 9-6 | 100 | Cristian Demuro | 38/1 |
| 15 Sep 25+53d | Marseille Borely (FR) | La Coupe de Marseille () (3yo) (Turf) | 3/9 | 1 | 9-1 | — | Marvin Grandin | 17/5 |
| 24 Jul 25+76d | Compiegne (FR) | Prix Pelleas () (3yo Colts & Geldings) (Turf) | 3/8 | 3 | 9-2 | — | Marvin Grandin | 3/1 |
| 09 May 25 | Saint-Cloud (FR) | Prix Greffulhe (3yo) (Turf) | 2/5 | 2½ | 9-2 | — | Marvin Grandin | 9/1 |
Quick answers
- How many races has Dioptase (IRE) won?
- Dioptase (IRE) has yet to win, from 9 archived starts between 2025 and 2026. Placed 5 times in total (55.6% of starts).
- Who trains Dioptase (IRE)?
- Dioptase (IRE) is trained by Leonardo D Racco, who saddled the horse on its most recent run on 4 October 2026.
- Who is Dioptase (IRE)'s sire?
- Dioptase (IRE) is by New Bay (GB) out of Gouville (FR), whose sire is Rajsaman.
- What is Dioptase (IRE)'s official rating?
- Dioptase (IRE)'s highest official rating on record is 104.
- What is Dioptase (IRE)'s sire's record?
- New Bay (GB)'s progeny in our archive have won 14.4% of 3,928 runs since Jan 2008 (419 horses), Flat and jumps together. Weakest at trips under 6f (all codes): 10.8% from 102.
- Who are Dioptase (IRE)'s siblings?
- Out of Gouville (FR), Dioptase (IRE) has 1 other produce in our archive, 0 of them winners. As at Oct 2026.