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Horse profile

My Big Sister (GB)

8yo mare (at last run, Oct 2007) · Last trainer John Berwick · Last owner J H Berwick
by Thethingaboutitis (USA) out of My Concordia (GB) (Belfort)
6 runs · 5 courses · from Dec 2005
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 6 Oct 2007 — 6,969 days ago. Our archive can't say whether the horse is still in training.
Last run Oct 2007 · 12th of 16 New yard Last raced off OR 78
KTB Profile

My Big Sister (GB) is yet to win from 6 starts, though has placed once. Best effort: 3rd of 9 at Plumpton (Apr 2006).

Based on 6 archived runs · updated 5 Nov 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 73C the best of the last 3 rated runs · Fontwell, 6 Oct 2007 Official rating 78 at the last run, 6 Oct 2007

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 — its best recent day. The KTB Rating on a racecard is a different reading of the same figures: the level the horse has been running to, an average of up to its last six runs with the latest counting most, so the two can differ. A, B or C on a run is how much known form was in that race. What this means →

Jumps 6 figures · best 73C · median 66.5
GoingRunsBestMedianSince 5 Nov 2025
Good to Firm273C65—
Good267C66.5—
Good to Soft1———
Heavy1———
DistanceRunsBestMedianSince 5 Nov 2025
1m5f – 2m366C62—
2m1f – 2m4f273C72—
2m5f – 3m1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 6 figures from 6 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
Thethingaboutitis (USA)

Progeny in our archive have won 3% of 66 runs since Jan 2008 (10 horses).

GoingRunsWinsSRvs sireThis horse
Good to Firm1200%−30 from 2
Good1600%−30 from 2
Good to Soft9222.2%+19.20 from 1
Soft1700%−3—
Heavy500%−30 from 1
Standard (AW)700%−3—
Distance (all codes)RunsWinsSRvs sireThis horse
6f – 7f500%−3—
1m – 1m1f200%−3—
1m2f – 1m4f500%−3—
1m5f – 2m1600%−30 from 3
2m1f – 2m4f1700%−30 from 2
2m5f – 3m16212.5%+9.50 from 1
Over 3m500%−3—

Flat and jumps together (all codes) · since Jan 2008 · as at 5 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
My Concordia (GB) (Belfort)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Flapdoodle (GB)30——

Record by conditions

GoingRunsWinsSR£1
Good to Firm 2 0 0% −2.00
Good 2 0 0% −2.00
Good to Soft 1 0 0% −1.00
Heavy 1 0 0% −1.00

ClassRunsWinsSR£1
Class 5 3 0 0% −3.00
Class 4 3 0 0% −3.00

CourseRunsWinsSR£1
Fontwell 2 0 0% −2.00
Worcester 1 0 0% −1.00
Plumpton 1 0 0% −1.00
Huntingdon 1 0 0% −1.00
Lingfield 1 0 0% −1.00

DistanceRunsWinsSR£1
1m5f – 2m 3 0 0% −3.00
2m1f – 2m4f 2 0 0% −2.00
2m5f – 3m 1 0 0% −1.00

JockeyRunsWinsSR£1
Wayne Kavanagh 5 0 0% −5.00
Tom O'Connor 1 0 0% −1.00

SeasonRunsWinsSR£1
2007 1 0 0% −1.00
2006 4 0 0% −4.00
2005 1 0 0% −1.00

TypeRunsWinsSR£1
Hurdle 5 0 0% −5.00
Chase 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

DateCourseRace PosBtn Wgt ORKTB Jockey SP
2007 · 1 run
06 Oct 07+518d Fontwell Wipro Proud To Support Wateraid Handicap Hurdle Class 5 · 2m3f · Good To Firm · 16 ran 12/16 7 10-12 7873C Tom O'Connor 16/1
2006 · 4 runs
06 May 06+19d Worcester Ron Sims Promotion Mares' Only Selling Handicap Hurdle Class 5 · 2m · Good To Firm · 14 ran 11/14 13 10-13 8257C Wayne Kavanagh 16/1
17 Apr 06+33d Plumpton Harry Sandler Memorial Selling Handicap Chase Class 5 · 2m1f · Good To Soft · 9 ran 3/9 25 10-12 8271C Wayne Kavanagh 20/1
15 Mar 06+25d Huntingdon Betfred Mares' Only Maiden Hurdle Class 4 · 2m · Good · 18 ran 9/18 nk 10-7 8266C Wayne Kavanagh 100/1
18 Feb 06+60d Lingfield Golf & Racing At Lingfield Park Mares' Only Novices' Hurdle Class 4 · 2m½f · Heavy · 14 ran 9/14 14 10-9 —62C Wayne Kavanagh 100/1
2005 · 1 run
20 Dec 05 Fontwell Packham Construction Christmas Party Novices' Hurdle Class 4 · 2m5½f · Good · 16 ran 10/16 13 9-12 —67C Wayne Kavanagh 100/1

Quick answers

How many races has My Big Sister won?
My Big Sister (GB) has yet to win, from 6 archived starts between 2005 and 2007. Placed 1 time in total (16.7% of starts).
Who trained My Big Sister?
My Big Sister (GB) was trained by John Berwick on the most recent run on record, at Fontwell on 6 October 2007.
Who is My Big Sister's sire?
My Big Sister (GB) is by Thethingaboutitis (USA) out of My Concordia (GB), whose sire is Belfort.
What is My Big Sister's official rating?
The most recent official rating on record is 78, from the run on 6 October 2007. The highest on record is 82.
What is My Big Sister's sire's record?
Thethingaboutitis (USA)'s progeny in our archive have won 3% of 66 runs since Jan 2008 (10 horses), Flat and jumps together.
Who are My Big Sister's siblings?
Out of My Concordia (GB), My Big Sister (GB) has 1 other produce in our archive, 0 of them winners. As at Nov 2026.

Record shown from December 2005. Our archive holds racing in Great Britain, Ireland and France from January 2005. Any runs before that, or in other countries, are not in it. In-running comments are available from 2024 onward.