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Horse profile

Trentside William (GB)

6yo gelding (at last run, Jul 2013) · Last trainer Mike Sowersby · Last owner J Payne
by Bollin William (GB) out of Aunt Gladys (IRE) (Glacial Storm)
3 runs · 3 courses · from Jun 2013
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 14 Jul 2013 — 4,862 days ago. Our archive can't say whether the horse is still in training.
Last run Jul 2013
KTB Profile

Trentside William (GB) is yet to win from 3 starts.

Based on 3 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

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 →

Of 3 runs looked at, 3 have no figure: did not complete (or a non-runner row) (3).

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 0 figures from 3 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
Bollin William (GB)

Progeny in our archive have won 4.8% of 62 runs since Jan 2008 (13 horses).

GoingRunsWinsSRvs sireThis horse
Good to Firm700%−4.8—
Good2727.4%+2.60 from 3
Good to Soft10110%+5.2—
Soft1600%−4.8—
Heavy100%−4.8—
Standard (AW)100%−4.8—
Distance (all codes)RunsWinsSRvs sireThis horse
1m5f – 2m1400%−4.8—
2m1f – 2m4f1700%−4.80 from 2
2m5f – 3m18316.7%+11.90 from 1
Over 3m1300%−4.8—

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
Aunt Gladys (IRE) (Glacial Storm)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Gafferdy Lane (GB)10——

Record by conditions

ClassRunsWinsSR£1
Class 5 2 0 0% −2.00
Class 4 1 0 0% −1.00

CourseRunsWinsSR£1
Southwell 1 0 0% −1.00
Uttoxeter 1 0 0% −1.00
Hexham 1 0 0% −1.00

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

HeadgearRunsWinsSR£1
Tongue tie 2 0 0% −2.00
None 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 KTB Jockey SP
2013 · 3 runs
14 Jul 13+14d Southwell Mansfield Chad Novices' Selling Hurdle Class 5 · 2m4½f · Good · 6 ran PU/6 — 10-12 — Andrew Thornton 100/1
30 Jun 13+15d Uttoxeter Totel Solutions Maiden Hurdle (Div 1) Class 5 · 2m4f · Good · 11 ran F/11 — 11-0 — Andrew Thornton 200/1
15 Jun 13 Hexham Chesters Fort Novices' Hurdle Class 4 · 2m7½f · Good · 14 ran PU/14 — 10-12 — Andrew Thornton 250/1

Quick answers

How many races has Trentside William won?
Trentside William (GB) has yet to win, from 3 archived starts in 2013.
Who trained Trentside William?
Trentside William (GB) was trained by Mike Sowersby on the most recent run on record, at Southwell on 14 July 2013.
Who is Trentside William's sire?
Trentside William (GB) is by Bollin William (GB) out of Aunt Gladys (IRE), whose sire is Glacial Storm.
What is Trentside William's sire's record?
Bollin William (GB)'s progeny in our archive have won 4.8% of 62 runs since Jan 2008 (13 horses), Flat and jumps together.
Who are Trentside William's siblings?
Out of Aunt Gladys (IRE), Trentside William (GB) has 1 other produce in our archive, 0 of them winners. As at Nov 2026.

Record shown from June 2013. 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.