Sioux Perfect (IRE)
Sioux Perfect won the 100000 Tattersalls Somerville Auction Stakes at Newmarket in Aug 2025 at Class 2 level over 6f to 7f on good to firm going. The filly has one win and three places from seven runs overall, all at Class 2 or lower, with the win coming off an official rating of 74. She last ran in Oct 2025 when second of eight at Newcastle over the AW in a Class 4 nursery, having raced prominently off her career-high mark of 79.
- 1–7Wins / Runs
- 14.3%Strike rate
- 3 (42.9%)Placed
- +27.00£1 level staken=7 at SP
- 1.14Fair A/E n=7 · 0.97 incl. margin
- 79Highest OR
- 31dAvg 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 95
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 25 Oct 2025 |
|---|---|---|---|---|
| Good to Firm | 3 | 104C | 92 | — |
| Good | 3 | 95B | 79 | — |
| Standard (AW) | 1 | — | — | — |
| Distance | Runs | Best | Median | Since 25 Oct 2025 |
|---|---|---|---|---|
| 6f – 7f | 5 | 104C | 93 | — |
| Under 6f | 2 | 90C | 69 | — |
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 7 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 from 7 analysed runs since Apr 2025
- Prominent 4 (57%) · 1 win
- Held up 2 (29%) · 0 wins
- Led 1 (14%) · 0 wins
Pedigree intelligence
Progeny in our archive have won 12.4% of 2,879 runs since Jan 2008 (354 horses).
Strongest on good to firm going: 17.2% from 425. Strongest at trips under 6f (all codes): 16.3% from 578. Weakest over 1m2f – 1m4f (all codes): 4.7% from 190.
| Going | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Firm | 4 | 0 | 0% | −12.4 | — |
| Good to Firm | 425 | 73 | 17.2% | +4.8 | 1 from 3 |
| Good | 737 | 78 | 10.6% | −1.8 | 0 from 3 |
| Good to Soft | 289 | 31 | 10.7% | −1.7 | — |
| Soft | 384 | 48 | 12.5% | +0.1 | — |
| Heavy | 113 | 14 | 12.4% | 0 | — |
| Standard (AW) | 927 | 114 | 12.3% | −0.1 | 0 from 1 |
| Distance (all codes) | Runs | Wins | SR | vs sire | This horse |
|---|---|---|---|---|---|
| Under 6f | 578 | 94 | 16.3% | +3.9 | 0 from 2 |
| 6f – 7f | 1,572 | 201 | 12.8% | +0.4 | 1 from 5 |
| 1m – 1m1f | 524 | 53 | 10.1% | −2.3 | — |
| 1m2f – 1m4f | 190 | 9 | 4.7% | −7.7 | — |
| 1m5f – 2m | 9 | 0 | 0% | −12.4 | — |
| 2m1f – 2m4f | 6 | 1 | 16.7% | +4.3 | — |
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
1 sibling in the archive, 1 winner — best of them Highland Harvey (IRE) (1 win).
The wins came over 1m3½f; the highest grade won is Class 6 (Highland Harvey (IRE)).
| Produce | Runs | Wins | Win trips | Best grade |
|---|---|---|---|---|
| Highland Harvey (IRE) | 24 | 1 | 1m3½f | Class 6 |
Record by conditions
| Going | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Good to Firm | 3 | 1 | 33% | +31.00 |
| Good | 3 | 0 | 0% | −3.00 |
| Standard (AW) | 1 | 0 | 0% | −1.00 |
| Class | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Class 5 | 3 | 0 | 0% | −3.00 |
| Class 4 | 2 | 0 | 0% | −2.00 |
| Class 2 | 2 | 1 | 50% | +32.00 |
| Course | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Newcastle (AW) | 1 | 0 | 0% | −1.00 |
| Newmarket | 1 | 1 | 100% | +33.00 |
| Ripon | 1 | 0 | 0% | −1.00 |
| Leicester | 1 | 0 | 0% | −1.00 |
| Goodwood | 1 | 0 | 0% | −1.00 |
| Ascot | 1 | 0 | 0% | −1.00 |
| Beverley | 1 | 0 | 0% | −1.00 |
| Distance | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| 6f – 7f | 5 | 1 | 20% | +29.00 |
| Under 6f | 2 | 0 | 0% | −2.00 |
| Jockey | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| Hollie Doyle | 3 | 0 | 0% | −3.00 |
| William Cox | 3 | 1 | 33% | +31.00 |
| Tom Marquand | 1 | 0 | 0% | −1.00 |
| Headgear | Runs | Wins | SR | £1 |
|---|---|---|---|---|
| None | 4 | 0 | 0% | −4.00 |
| Blinkers | 2 | 1 | 50% | +32.00 |
| Cheekpieces | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025 · 7 runs | ||||||||||
| 17 Oct 25+55d | Newcastle (AW) | Happy Birthday Stuart From Probio-Energy Nursery Sat close up on the near flank of the front bunch - pressed for the lead entering the last furlong - held effort to the line without extra finding | 2/8 | 1¼ | 9-8 | 79 | 93A | 87A | Hollie Doyle | 5/1 |
| 23 Aug 25+25d | Newmarket | 100,000 Tattersalls Somerville Auction Stakes (GBB Race) Knocked into the other runner at the break - drifted left and tracked the pace in second on the far rail - went to the front two out - pressed for effort a furlong out - pulled clear in the final stretch to score comfortably | 1/20 | 8-10 | 74 | 104C | 98A | William Cox | 33/1 | |
| 29 Jul 25+12d | Ripon | Book Online At ripon-races.co.uk Nursery Slow to break - settled towards back - moved right and made progress into contention over 2f out - shared advantage entering final furlong under pressure - battled with eventual winner but edged out close to line | 2/7 | ½ | 9-6 | 72 | 95B | 82A | William Cox | 12/1 |
| 17 Jul 25+34d | Leicester | Best Ticket Deals Online leicester-racecourse.co.uk Nursery Shared front spot until inside final two furlongs - lost place late - finished 7th beaten 6½ lengths | 7/7 | 1 | 9-8 | 74 | 92A | 65A | Tom Marquand | 6/1 |
| 13 Jun 25+35d | Goodwood | Sir Eric Parker Memorial EBF Restricted Maiden Fillies' Stakes (GBB Race) Handy early - shared front spot under pressure with 2f left before giving way - dropped a couple of spots in the closing stages to finish 4th | 4/9 | 1 | 9-2 | — | 79B | 71A | William Cox | 10/1 |
| 09 May 25+23d | Ascot | Juddmonte British EBF Restricted Maiden Fillies' Stakes (GBB Race) Reared and stumbled at the off - dropped towards the back and lost touch with the pace - kept battling in isolation through the last furlong to finish 6th | 6/13 | 2½ | 9-2 | — | 90C | 72A | Hollie Doyle | 11/1 |
| 16 Apr 25 | Beverley | EBF Fillies' Restricted Novice Stakes (GBB Race) Tracked pace wide - stumbled and mildly baulked with 4f left - pushed along inside final furlong before fading | 5/12 | 2½ | 9-2 | — | 48A | 66A | Hollie Doyle | 5/4F |
Quick answers
- How many races has Sioux Perfect won?
- Sioux Perfect (IRE) won 1 of 7 archived starts in 2025, a strike rate of 14.3%. Placed 3 times in total (42.9% of starts).
- Who trained Sioux Perfect?
- Sioux Perfect (IRE) was trained by Archie Watson on the most recent run on record, at Newcastle (AW) on 17 October 2025.
- Who is Sioux Perfect's sire?
- Sioux Perfect (IRE) is by Sioux Nation (USA) out of Perfecimperfection (IRE), whose sire is Camelot.
- What going does Sioux Perfect prefer?
- Sioux Perfect (IRE) has the best record on good to firm going: 1 win from 3 starts (33.3%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
- What is Sioux Perfect's official rating?
- The most recent official rating on record is 79, from the run on 17 October 2025. That is also the highest on record.
- What is Sioux Perfect's sire's record?
- Sioux Nation (USA)'s progeny in our archive have won 12.4% of 2,879 runs since Jan 2008 (354 horses), Flat and jumps together. Strongest on good to firm going: 17.2% from 425. Strongest at trips under 6f (all codes): 16.3% from 578. Weakest over 1m2f – 1m4f (all codes): 4.7% from 190.
- Who are Sioux Perfect's siblings?
- Out of Perfecimperfection (IRE), Sioux Perfect (IRE) has 1 other produce in our archive, 1 of them a winner. Most wins: Highland Harvey (IRE) (1). Highest grade won: Class 6 (Highland Harvey (IRE)). The wins came over 1m3½f. As at Oct 2026.