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Horse profile

Byzantine (GB)

3yo colt (at last run, Jun 2009) · Last trainer A P O'Brien · Last owner Michael Tabor
by Sadler's Wells (USA) out of Miss Satamixa (FR) (Linamix)
4 runs · 2 courses · from Oct 2008
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 28 Jun 2009 — 6,323 days ago. Our archive can't say whether the horse is still in training.
Last run Jun 2009 · 10th of 11 Won at Gowran Park Last raced off OR 88
KTB Profile

Byzantine (GB) is 1 from 4. Hasn't won since Oct 2008.

Based on 4 archived runs · updated 21 Oct 2026

KTB Speed and Rating

KTB Speed

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

KTB Rating

Best recent KTB Rating 78C the best of the last 3 rated runs · Curragh, 28 Jun 2009 Official rating 88 at the last run, 28 Jun 2009

What the horse achieved in each race, in pounds on the official-rating scale, from the weight carried, the lengths beaten and the race's own level solved across the archive — never the market, never the official rating as a starting point. The headline is the best of the horse's last three rated runs on that code. A, B or C on a run is how much known form was in that race. What this means →

Flat 4 figures · best 98A · median 71
GoingRunsBestMedianSince 21 Oct 2025
Heavy298A81—
Good to Soft1———
Good1———
DistanceRunsBestMedianSince 21 Oct 2025
1m2f – 1m4f378C64—
1m – 1m1f1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 4 figures from 4 runs · as at 4 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

Sire
Sadler's Wells (USA)

Progeny in our archive have won 11.3% of 4,636 runs since Jan 2008 (370 horses).

Strongest over 6f – 7f (all codes): 18.7% from 107.

GoingRunsWinsSRvs sireThis horse
Firm46715.2%+3.9—
Good to Firm6449014%+2.7—
Good1,24815212.2%+0.90 from 1
Good to Soft716709.8%−1.50 from 1
Soft1,08511710.8%−0.5—
Heavy5135210.1%−1.21 from 2
Standard (AW)384369.4%−1.9—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f100%−11.3—
6f – 7f1072018.7%+7.4—
1m – 1m1f286279.4%−1.91 from 1
1m2f – 1m4f1,18813411.3%00 from 3
1m5f – 2m1,39417612.6%+1.3—
2m1f – 2m4f9619610%−1.3—
2m5f – 3m556539.5%−1.8—
Over 3m1431812.6%+1.3—

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

Dam
Miss Satamixa (FR) (Linamix)

5 siblings in the archive, 1 winner — best of them Brambleberry (GB) (2 wins).

The wins came over 5f; the highest grade won is Class 5 (Brambleberry (GB)).

ProduceRunsWinsWin tripsBest grade
Brambleberry (GB)625fClass 5
X Rated (GB)80——
Miss Socialite (GB)50——
Mister Wells (FR)20——
Eclair Magique (IRE)10——

Record by conditions

GoingRunsWinsSR£1
Heavy 2 1 50% +3.00
Good to Soft 1 0 0% −1.00
Good 1 0 0% −1.00

CourseRunsWinsSR£1
Curragh 2 0 0% −2.00
Gowran Park 2 1 50% +3.00

DistanceRunsWinsSR£1
1m2f – 1m4f 3 0 0% −3.00
1m – 1m1f 1 1 100% +4.00

JockeyRunsWinsSR£1
Seamie Heffernan 2 1 50% +3.00
Joseph O'Brien 1 0 0% −1.00
Sean Levey 1 0 0% −1.00

SeasonRunsWinsSR£1
2009 3 0 0% −3.00
2008 1 1 100% +4.00

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

DateCourseRace PosBtn Wgt ORKTB Jockey SP
28 Jun 09+22d Curragh Dubai Duty Free Irish Derby (group 1) 12f · Good To Yielding · 11 ran 10/11 25 9-0 8878C Joseph O'Brien 200/1
06 Jun 09+34d Curragh Mogeely Stud Silver Stakes (listed Race) (listed) 10f · Good · 8 ran 8/8 4½ 8-10 8859C Sean Levey 8/1
03 May 09+184d Gowran Park Gowran Park Classic Trial 12f · Heavy · 6 ran 6/6 4½ 9-5 —64C Seamie Heffernan 5/2
31 Oct 08 Gowran Park Irish Stallion Farms Ebf Maiden 8f · Heavy · 11 ran 1/11 9-3 —98A Seamie Heffernan 4/1

Quick answers

How many races has Byzantine (GB) won?
Byzantine (GB) won 1 of 4 archived starts between 2008 and 2009, a strike rate of 25%. Placed 1 time in total (25% of starts).
Who trained Byzantine (GB)?
Byzantine (GB) was trained by A P O'Brien on the most recent run on record, at Curragh on 28 June 2009.
Who is Byzantine (GB)'s sire?
Byzantine (GB) is by Sadler's Wells (USA) out of Miss Satamixa (FR), whose sire is Linamix.
What is Byzantine (GB)'s official rating?
The most recent official rating on record is 88, from the run on 28 June 2009. That is also the highest on record.
What is Byzantine (GB)'s sire's record?
Sadler's Wells (USA)'s progeny in our archive have won 11.3% of 4,636 runs since Jan 2008 (370 horses), Flat and jumps together. Strongest over 6f – 7f (all codes): 18.7% from 107.
Who are Byzantine (GB)'s siblings?
Out of Miss Satamixa (FR), Byzantine (GB) has 5 other produce in our archive, 1 of them a winner. Most wins: Brambleberry (GB) (2). Highest grade won: Class 5 (Brambleberry (GB)). The wins came over 5f. As at Oct 2026.

Record shown from October 2008. Our archive holds racing in Great Britain, Ireland and France from January 2005. Runs in other countries are not in it, and earlier runs are not available from our data provider. In-running comments are available from 2024 onward.