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Horse profile

Colzium (GB)

3yo gelding (at last run, Nov 2011) · Last trainer Mark H Tompkins · Last owner David P Noblett
by Zafeen (FR) out of Mild Deception (IRE) (Glow)
8 runs · 5 courses · from Aug 2010
As at 4 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 6 Nov 2011 — 5,477 days ago. Our archive can't say whether the horse is still in training.
Last run Nov 2011
KTB Profile

Colzium (GB) is yet to win from 8 starts. Best effort: 4th of 5 at Yarmouth (Aug 2011).

Based on 8 archived runs · updated 4 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 49B the best of the last 3 rated runs · Yarmouth, 15 Aug 2011 Official rating 43 at the last run, 15 Aug 2011

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 →

Flat 7 figures · best 49B · median 41
GoingRunsBestMedianSince 4 Nov 2025
Good349C42—
Good to Firm249B40.5—
Standard (AW)241C40—
DistanceRunsBestMedianSince 4 Nov 2025
1m2f – 1m4f349B42—
6f – 7f349C41—
1m5f – 2m1———

Of 8 runs looked at, 1 has no figure: did not complete (or a non-runner row) (1).

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 7 figures from 8 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
Zafeen (FR)

Progeny in our archive have won 9.2% of 1,586 runs since Apr 2009 (142 horses).

Weakest on good going: 4.2% from 360.

GoingRunsWinsSRvs sireThis horse
Firm30413.3%+4.1—
Good to Firm2583011.6%+2.40 from 2
Good360154.2%−50 from 4
Good to Soft1591710.7%+1.5—
Soft190168.4%−0.8—
Heavy5535.5%−3.7—
Standard (AW)5346111.4%+2.20 from 2
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f130129.2%0—
6f – 7f553519.2%00 from 3
1m – 1m1f428429.8%+0.6—
1m2f – 1m4f218198.7%−0.50 from 3
1m5f – 2m151127.9%−1.30 from 2
2m1f – 2m4f8389.6%+0.4—
2m5f – 3m20210%+0.8—
Over 3m300%−9.2—

Flat and jumps together (all codes) · since Apr 2009 · as at 4 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Mild Deception (IRE) (Glow)

4 siblings in the archive, 1 winner — best of them Sweet Sara (GB) (1 win).

The wins came over 1m2f; the highest grade won is Class 5 (Sweet Sara (GB)).

ProduceRunsWinsWin tripsBest grade
Sweet Sara (GB)811m2fClass 5
Nelsons Trick (GB)40——
Miss Charismatic (GB)10——
Fanzee Man (GB)20——

Record by conditions

GoingRunsWinsSR£1
Good 4 0 0% −4.00
Good to Firm 2 0 0% −2.00
Standard (AW) 2 0 0% −2.00

ClassRunsWinsSR£1
Class 6 5 0 0% −5.00
Class 5 2 0 0% −2.00
Class 4 1 0 0% −1.00

CourseRunsWinsSR£1
Yarmouth 3 0 0% −3.00
Southwell (AW) 2 0 0% −2.00
Market Rasen 1 0 0% −1.00
Hamilton 1 0 0% −1.00
Newmarket 1 0 0% −1.00

DistanceRunsWinsSR£1
1m2f – 1m4f 3 0 0% −3.00
6f – 7f 3 0 0% −3.00
1m5f – 2m 2 0 0% −2.00

JockeyRunsWinsSR£1
Jimmy Quinn 2 0 0% −2.00
Nicky Mackay 2 0 0% −2.00
Colin Bolger 1 0 0% −1.00
Chris Catlin 1 0 0% −1.00
Ashley Morgan 1 0 0% −1.00
Seb Sanders 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 7 0 0% −7.00
Blinkers 1 0 0% −1.00

SeasonRunsWinsSR£1
2011 5 0 0% −5.00
2010 3 0 0% −3.00

TypeRunsWinsSR£1
Flat 7 0 0% −7.00
Hurdle 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
2011 · 5 runs
06 Nov 11+83d Market Rasen Calverts Carpets York Juvenile Hurdle Class 4 · 2m½f · Good · 8 ran UR/8 — 10-12 —— Colin Bolger 66/1
15 Aug 11+27d Yarmouth Racing Welfare Claiming Stakes Class 6 · 1m2f · Good To Firm · 5 ran 4/5 3½ 8-8 4349B Jimmy Quinn 28/1
19 Jul 11+21d Southwell (AW) Dine In The Pantry Restaurant Handicap Class 6 · 1m3f · Standard · 13 ran 6/13 nse 7-12 4539A Nicky Mackay 20/1
28 Jun 11+19d Hamilton Racing Uk Sky 432 Handicap Class 6 · 1m4f · Good · 11 ran 5/11 1 8-2 4642A Nicky Mackay 80/1
09 Jun 11+210d Yarmouth Digibet.com Handicap Class 5 · 1m6f · Good To Firm · 7 ran 7/7 14 8-3 4932C Chris Catlin 20/1
2010 · 3 runs
11 Nov 10+55d Southwell (AW) McGow123 TV Brackets On E Bay Maiden Auction Stakes Class 6 · 7f · Standard · 10 ran 6/10 6 8-11 —41C Jimmy Quinn 40/1
17 Sep 10+32d Newmarket Warrens Of Warwick Maiden Auction Stakes Class 5 · 7f · Good · 20 ran 16/20 1¾ 8-4 —49C Ashley Morgan 100/1
16 Aug 10 Yarmouth European Breeders' Fund Median Auction Maiden Stakes Class 6 · 6f · Good · 15 ran 14/15 3 9-3 —30C Seb Sanders 50/1

Quick answers

How many races has Colzium won?
Colzium (GB) has yet to win, from 8 archived starts between 2010 and 2011.
Who trained Colzium?
Colzium (GB) was trained by Mark H Tompkins on the most recent run on record, at Market Rasen on 6 November 2011.
Who is Colzium's sire?
Colzium (GB) is by Zafeen (FR) out of Mild Deception (IRE), whose sire is Glow.
What is Colzium's official rating?
Colzium (GB)'s highest official rating on record is 49.
What is Colzium's sire's record?
Zafeen (FR)'s progeny in our archive have won 9.2% of 1,586 runs since Apr 2009 (142 horses), Flat and jumps together. Weakest on good going: 4.2% from 360.
Who are Colzium's siblings?
Out of Mild Deception (IRE), Colzium (GB) has 4 other produce in our archive, 1 of them a winner. Most wins: Sweet Sara (GB) (1). Highest grade won: Class 5 (Sweet Sara (GB)). The wins came over 1m2f. As at Nov 2026.

Record shown from August 2010. 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.