Portfolio Duration (GB)
Portfolio Duration won the Grade 1 New York Stakes at Saratoga on firm ground over 1m to 1m1f in Jun 2026 on her only start to date. The filly beat seven rivals that day. By Night Of Thunder, whose progeny have won 16.4% of 4,967 runs in the archive since Jan 2008. Her dam Shemya has produced one winner from three runners to date.
- 1–1Wins / Runs
- 100%Strike rate
- 1 (100%)Placed
- +4.00£1 level staken=1 at SP
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 16.3% of 5,076 runs since Jan 2008 (562 horses).
Weakest over 1m5f – 2m (all codes): 7% from 157.
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 4 | 2 | 50% | +33.7 | 1 from 1 |
| Good to Firm | 831 | 154 | 18.5% | +2.2 | — |
| Good | 1,220 | 199 | 16.3% | 0 | — |
| Good to Soft | 580 | 92 | 15.9% | −0.4 | — |
| Soft | 703 | 120 | 17.1% | +0.8 | — |
| Heavy | 215 | 36 | 16.7% | +0.4 | — |
| Standard (AW) | 1,523 | 224 | 14.7% | −1.6 | — |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 383 | 60 | 15.7% | −0.6 | — |
| 6f – 7f | 2,115 | 372 | 17.6% | +1.3 | — |
| 1m – 1m1f | 1,361 | 206 | 15.1% | −1.2 | 1 from 1 |
| 1m2f – 1m4f | 1,002 | 172 | 17.2% | +0.9 | — |
| 1m5f – 2m | 157 | 11 | 7% | −9.3 | — |
| 2m1f – 2m4f | 47 | 5 | 10.6% | −5.7 | — |
| 2m5f – 3m | 9 | 1 | 11.1% | −5.2 | — |
| Over 3m | 2 | 0 | 0% | −16.3 | — |
Flat and jumps together (all codes) · since Jan 2008 · as at 25 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
3 siblings in the archive, 1 winner — best of them Cormorant (IRE) (2 wins).
The wins came over 1m–1m2f; the highest grade won is Group 3 (Cormorant (IRE)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Cormorant (IRE) | 8 | 2 | 1m–1m2f | Group 3 |
| Parkland (IRE) | 11 | 0 | — | — |
| Sheringham (GB) | 2 | 0 | — | — |
Too few runs for meaningful splits. The full record is below.
Form
| Date | Course | Race | Pos | Btn | Wgt | Jockey | SP |
|---|---|---|---|---|---|---|---|
| 2026 · 1 run | |||||||
| 05 Jun 26 | Saratoga (USA) | New York Stakes (Fillies & Mares) (Turf) | 1/8 | 8-8 | Flavien Prat | 4/1 | |
Quick answers
- How many races has Portfolio Duration won?
- Portfolio Duration (GB) won 1 of 1 archived start in 2026, a strike rate of 100%. Placed 1 time in total (100% of starts).
- Who trains Portfolio Duration?
- Portfolio Duration (GB) is trained by Chad C Brown, who saddled the horse on its most recent run on 5 June 2026.
- Who is Portfolio Duration's sire?
- Portfolio Duration (GB) is by Night Of Thunder (IRE) out of Shemya (FR), whose sire is Dansili.
- What is Portfolio Duration's sire's record?
- Night Of Thunder (IRE)'s progeny in our archive have won 16.3% of 5,076 runs since Jan 2008 (562 horses), Flat and jumps together. Weakest over 1m5f – 2m (all codes): 7% from 157.
- Who are Portfolio Duration's siblings?
- Out of Shemya (FR), Portfolio Duration (GB) has 3 other produce in our archive, 1 of them a winner. Most wins: Cormorant (IRE) (2). Highest grade won: Group 3 (Cormorant (IRE)). The wins came over 1m–1m2f. As at Oct 2026.