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Horse profile

Cluster One (IRE)

3yo colt (at last run, Jan 2025) · Last trainer K R Burke · Last owner Wentworth And Partners
2 runs · 2 courses · from Dec 2024
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 18 Jan 2025 — 640 days ago. Our archive can't say whether the horse is still in training.
Last run Jan 2025 · 4th of 6
KTB Profile

Cluster One is a lightly raced maiden with no wins from two starts between Dec 2024 and Jan 2025, both on standard going over 6f to 7f on all-weather tracks. His best effort came when third of 12 at Wolverhampton in Dec 2024. The colt by Sioux Nation finished fourth of six, having been held up, at Lingfield in a Class 2 novice in Jan 2025. His dam has produced two winners from two runners to date, including Almarin with two wins.

Based on 2 archived runs · run-style from 2 commented runs since Dec 2024 · updated 21 Oct 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 83 the best of the last 2 graded (A or B) runs · Lingfield (AW), 18 Jan 2025

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 →

Flat 2 figures · best 83A · median 70.5
GoingRunsBestMedianSince 21 Oct 2025
Standard (AW)283A70.5—
DistanceRunsBestMedianSince 21 Oct 2025
6f – 7f283A70.5—

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 2 figures from 2 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 80B the best of the last 2 rated runs · Lingfield (AW), 18 Jan 2025

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 2 figures · best 80B · median 78
GoingRunsBestMedianSince 21 Oct 2025
Standard (AW)280B78—
DistanceRunsBestMedianSince 21 Oct 2025
6f – 7f280B78—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 2 figures from 2 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.

Pedigree intelligence

Sire

Progeny in our archive have won 12.4% of 2,870 runs since Jan 2008 (353 horses).

Strongest on good to firm going: 17.2% from 425. Strongest at trips under 6f (all codes): 16.3% from 577. Weakest over 1m2f – 1m4f (all codes): 4.8% from 189.

GoingRunsWinsSRvs sireThis horse
Firm400%−12.4—
Good to Firm4257317.2%+4.8—
Good7377810.6%−1.8—
Good to Soft2893110.7%−1.7—
Soft3834812.5%+0.1—
Heavy1121311.6%−0.8—
Standard (AW)92011412.4%00 from 2
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f5779416.3%+3.9—
6f – 7f1,56620012.8%+0.40 from 2
1m – 1m1f5235310.1%−2.3—
1m2f – 1m4f18994.8%−7.6—
1m5f – 2m900%−12.4—
2m1f – 2m4f6116.7%+4.3—

Flat and jumps together (all codes) · since Jan 2008 · as at 20 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam

2 siblings in the archive, 2 winners — best of them Almarin (IRE) (2 wins).

The wins came over 7f–1m½f; the highest grade won is Class 2 (Almarin (IRE)).

ProduceRunsWinsWin tripsBest grade
Almarin (IRE)1321m–1m½fClass 2
Scatterling (IRE)317f—

Too few runs for meaningful splits. The full record is below.

Form

DateCourseRace PosBtn Wgt SpdKTB Jockey SP
18 Jan 25+22d Lingfield (AW) BetMGM: It's Showtime Novice Stakes (GBB Race) Class 2 · 7f · Standard · 6 ran Held up eagerly behind the front two - moved into second entering the straight - pushed along a furlong out - dropped away in the closing stages to finish fourth 4/6 ½ 9-1 83A80B Clifford Lee 12/1
27 Dec 24 Wolverhampton (AW) Gamble Responsibly With BetMGM EBF 'Confined' Novice Stakes (GBB Race) (Div 1) Class 5 · 7f · Standard · 12 ran Fought for control early amid poor sighting conditions - tracked front group - urged forward 2f out - driven approaching final furlong - stayed on at similar effort to finish third 3/12 3 9-7 58A76A Charles Bishop 3/1

Quick answers

How many races has Cluster One (IRE) won?
Cluster One (IRE) has yet to win, from 2 archived starts between 2024 and 2025. Placed 1 time in total (50% of starts).
Who trained Cluster One (IRE)?
Cluster One (IRE) was trained by K R Burke on the most recent run on record, at Lingfield (AW) on 18 January 2025.
Who is Cluster One (IRE)'s sire?
Cluster One (IRE) is by Sioux Nation (USA) out of Princess Severus (IRE), whose sire is Barathea.
What is Cluster One (IRE)'s sire's record?
Sioux Nation (USA)'s progeny in our archive have won 12.4% of 2,870 runs since Jan 2008 (353 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 577. Weakest over 1m2f – 1m4f (all codes): 4.8% from 189.
Who are Cluster One (IRE)'s siblings?
Out of Princess Severus (IRE), Cluster One (IRE) has 2 other produce in our archive, 2 of them winners. Most wins: Almarin (IRE) (2). Highest grade won: Class 2 (Almarin (IRE)). The wins came over 7f–1m½f. As at Oct 2026.

Record shown from December 2024. 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.