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Horse profile

Thunder S (USA)

3yo filly (at last run, Aug 2006) · Last trainer Luca Cumani · Last owner Whitewood Stable Inc
by Kris S (USA) out of Thunder Maid (USA) (Alydar)
2 runs · 2 courses · from Jul 2006
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 10 Aug 2006 — 7,392 days ago. Our archive can't say whether the horse is still in training.
Last run Aug 2006 · 5th of 6
KTB Profile

Lightly raced, with 2 archived starts between Jul 2006 and Aug 2006, the last of them as a 3yo filly. Finished 5 of 6 at Haydock last time.

Based on 2 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 44C the best of the last 2 rated runs · Wolverhampton (AW), 13 Jul 2006

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 2 figures · best 44C · median 34.5
GoingRunsBestMedianSince 5 Nov 2025
Good to Firm1———
Standard (AW)1———
DistanceRunsBestMedianSince 5 Nov 2025
1m2f – 1m4f1———
1m – 1m1f1———

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.

Run style is derived from in-running commentary, which our data provider does not supply for this horse's races.

Pedigree intelligence

Sire
Kris S (USA)

Progeny in our archive have won 7.5% of 40 runs since Feb 2008 (6 horses).

GoingRunsWinsSRvs sireThis horse
Firm200%−7.5—
Good to Firm400%−7.50 from 1
Good9222.2%+14.7—
Good to Soft600%−7.5—
Soft1317.7%+0.2—
Heavy500%−7.5—
Standard (AW)100%−7.50 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
1m2f – 1m4f3133.3%+25.80 from 1
1m5f – 2m600%−7.5—
2m1f – 2m4f19210.5%+3—
2m5f – 3m800%−7.5—
Over 3m400%−7.5—

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

Dam
Thunder Maid (USA) (Alydar)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Twombly (USA)20——

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

Form

DateCourseRace PosBtn Wgt KTB Jockey SP
2006 · 2 runs
10 Aug 06+28d Haydock Racing UK Tv Maiden Stakes Class 5 · 1m2½f · Good To Firm · 6 ran 5/6 nk 8-9 25C Eddie Ahern 50/1
13 Jul 06 Wolverhampton (AW) Enjoy Racing From The Zongalero Restaurant Maiden Stakes Class 5 · 1m½f · Standard · 10 ran 10/10 5 8-12 44C Nicky Mackay 8/1

Quick answers

How many races has Thunder S won?
Thunder S (USA) has yet to win, from 2 archived starts in 2006.
Who trained Thunder S?
Thunder S (USA) was trained by Luca Cumani on the most recent run on record, at Haydock on 10 August 2006.
Who is Thunder S's sire?
Thunder S (USA) is by Kris S (USA) out of Thunder Maid (USA), whose sire is Alydar.
What is Thunder S's sire's record?
Kris S (USA)'s progeny in our archive have won 7.5% of 40 runs since Feb 2008 (6 horses), Flat and jumps together.
Who are Thunder S's siblings?
Out of Thunder Maid (USA), Thunder S (USA) has 1 other produce in our archive, 0 of them winners. As at Nov 2026.

Record shown from July 2006. 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.