Marmara Sea (GB)
Marmara Sea won the only time she raced over 1m5f – 2m, taking a Class 5 handicap at Haydock on good ground in Sep 2023. The filly, by Golden Horn out of a Desert Style mare, had shown placed form over 1m2f – 1m4f on turf earlier in her career. She raced five times on turf and twice on all-weather surfaces, recording one win from seven starts overall. Her last run, at Haydock in Sep 2023, was a win off an official rating of 75.
- 1–7Wins / Runs
- 14.3%Strike rate
- 2 (28.6%)Placed
- −2.00£1 level staken=7 at SP
- 1.45Fair A/E n=7 · 1.24 incl. margin
- 77Highest OR
- 29dBetween runs (median)longest 174 d
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 104
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 5 Nov 2025 |
|---|---|---|---|---|
| Good | 2 | 85A | 82 | — |
| Soft | 2 | 58C | 55 | — |
| Standard (AW) | 1 | — | — | — |
| Good to Soft | 1 | — | — | — |
| Distance | Runs | Best | Median | Since 5 Nov 2025 |
|---|---|---|---|---|
| 1m2f – 1m4f | 4 | 104A | 88.5 | — |
| 1m5f – 2m | 1 | — | — | — |
| 6f – 7f | 1 | — | — | — |
Of 7 runs looked at, 1 has no figure: not enough races on the card to set the day (under 4) (1).
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 6 figures from 7 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 13.9% of 3,759 runs since May 2019 (347 horses).
Weakest on heavy going: 9.2% from 163. Weakest over 6f – 7f (all codes): 8.2% from 233.
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 11 | 3 | 27.3% | +13.4 | — |
| Good to Firm | 441 | 69 | 15.6% | +1.7 | — |
| Good | 1,026 | 143 | 13.9% | 0 | 1 from 2 |
| Good to Soft | 482 | 80 | 16.6% | +2.7 | 0 from 1 |
| Soft | 581 | 73 | 12.6% | −1.3 | 0 from 2 |
| Heavy | 163 | 15 | 9.2% | −4.7 | — |
| Standard (AW) | 1,055 | 138 | 13.1% | −0.8 | 0 from 2 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 1 | 0 | 0% | −13.9 | — |
| 6f – 7f | 233 | 19 | 8.2% | −5.7 | 0 from 1 |
| 1m – 1m1f | 616 | 60 | 9.7% | −4.2 | — |
| 1m2f – 1m4f | 1,427 | 206 | 14.4% | +0.5 | 0 from 5 |
| 1m5f – 2m | 984 | 155 | 15.8% | +1.9 | 1 from 1 |
| 2m1f – 2m4f | 408 | 66 | 16.2% | +2.3 | — |
| 2m5f – 3m | 85 | 14 | 16.5% | +2.6 | — |
| Over 3m | 5 | 1 | 20% | +6.1 | — |
Flat and jumps together (all codes) · since May 2019 · as at 5 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
4 siblings in the archive, 1 winner — best of them Disclosure (GB) (1 win).
The wins came over 1m; the highest grade won is Class 5 (Disclosure (GB)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Disclosure (GB) | 16 | 1 | 1m | Class 5 |
| Twilight Safari (GB) | 15 | 0 | — | — |
| Knight Sleeper (GB) | 4 | 0 | — | — |
| Deira Champion (GB) | 5 | 0 | — | — |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good | 2 | 1 | 50% | +3.00 |
| Standard (AW) | 2 | 0 | 0% | −2.00 |
| Soft | 2 | 0 | 0% | −2.00 |
| Good to Soft | 1 | 0 | 0% | −1.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 5 | 2 | 1 | 50% | +3.00 |
| Class 2 | 2 | 0 | 0% | −2.00 |
| Class 4 | 2 | 0 | 0% | −2.00 |
| Class 3 | 1 | 0 | 0% | −1.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Newmarket | 3 | 0 | 0% | −3.00 |
| Haydock | 1 | 1 | 100% | +4.00 |
| Kempton (AW) | 1 | 0 | 0% | −1.00 |
| Lingfield (AW) | 1 | 0 | 0% | −1.00 |
| Newbury | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 1m2f – 1m4f | 5 | 0 | 0% | −5.00 |
| 1m5f – 2m | 1 | 1 | 100% | +4.00 |
| 6f – 7f | 1 | 0 | 0% | −1.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Marco Ghiani | 4 | 0 | 0% | −4.00 |
| William Buick | 1 | 1 | 100% | +4.00 |
| Robert Tart | 1 | 0 | 0% | −1.00 |
| Pat Cosgrave | 1 | 0 | 0% | −1.00 |
| Season | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 2023 | 6 | 1 | 17% | −1.00 |
| 2022 | 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.
Form
| Date | Course | Race | Pos | Btn | Wgt | OR | Spd | KTB | Jockey | SP |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023 · 6 runs | ||||||||||
| 08 Sep 23+30d | Haydock | Best Odds On The Betfair Exchange Handicap | 1/8 | 9-8 | 75 | 85A | 74A | William Buick | 4/1J | |
| 09 Aug 23+12d | Kempton (AW) | Unibet 3 Uniboosts A Day Fillies' Novice Stakes (GBB Race) | 4/12 | 8 | 9-2 | 76 | 104A | 60A | Marco Ghiani | 9/2 |
| 28 Jul 23+10d | Newmarket | British Stallion Studs Ebf Novice Stakes (GBB Race) | 3/7 | 9 | 8-13 | 77 | 98B | 66A | Marco Ghiani | 6/1 |
| 18 Jul 23+59d | Lingfield (AW) | Midland Steel Fillies' Novice Stakes (GBB Race) (AWT) | 2/11 | 1 | 9-2 | 77 | — | 78A | Marco Ghiani | 4/1 |
| 20 May 23+29d | Newmarket | Darley Fillies' Novice Stakes (GBB Race) | 4/6 | hd | 9-2 | — | 79A | 75B | Robert Tart | 40/1 |
| 21 Apr 23+174d | Newbury | Dreweatts Maiden Fillies' Stakes (GBB Race) | 13/16 | 8½ | 9-2 | — | 52C | 71C | Marco Ghiani | 33/1 |
| 2022 · 1 run | ||||||||||
| 29 Oct 22 | Newmarket | British Stallion Studs EBF Fillies' Novice Stakes (GBB Race) (Div 1) | 7/13 | 2 | 9-2 | — | 58C | 70A | Pat Cosgrave | 33/1 |
Quick answers
- How many races has Marmara Sea won?
- Marmara Sea (GB) won 1 of 7 archived starts between 2022 and 2023, a strike rate of 14.3%. Placed 2 times in total (28.6% of starts).
- Who trained Marmara Sea?
- Marmara Sea (GB) was trained by Jane Chapple-Hyam on the most recent run on record, at Haydock on 8 September 2023.
- Who is Marmara Sea's sire?
- Marmara Sea (GB) is by Golden Horn (GB) out of Handana (IRE), whose sire is Desert Style.
- What is Marmara Sea's official rating?
- The most recent official rating on record is 75, from the run on 8 September 2023. The highest on record is 77.
- What is Marmara Sea's sire's record?
- Golden Horn (GB)'s progeny in our archive have won 13.9% of 3,759 runs since May 2019 (347 horses), Flat and jumps together. Weakest on heavy going: 9.2% from 163. Weakest over 6f – 7f (all codes): 8.2% from 233.
- Who are Marmara Sea's siblings?
- Out of Handana (IRE), Marmara Sea (GB) has 4 other produce in our archive, 1 of them a winner. Most wins: Disclosure (GB) (1). Highest grade won: Class 5 (Disclosure (GB)). The wins came over 1m. As at Nov 2026.