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Horse profile

Mayo Miss (GB)

3yo filly (at last run, Apr 2012) · Last trainer Tony Carroll · Last owner Balding Castle Williams
by Byron (GB) out of Noor El Houdah (IRE) (Fayruz)
1 run · 1 course · from Apr 2012
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 30 Apr 2012 — 5,293 days ago. Our archive can't say whether the horse is still in training.
Last run Apr 2012 · 12th of 12
KTB Profile

Lightly raced, with 1 archived start in Apr 2012 as a 3yo filly. Finished 12 of 12 at Kempton (AW) last time. By Byron (GB), whose progeny in our archive have won 9.4% of 3,248 runs since Jan 2008.

Based on 1 archived run · updated 28 Oct 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 33C the best of the last 1 rated run · Kempton (AW), 30 Apr 2012

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 1 figure · too few for a breakdown

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 1 figure from 1 run · 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

Progeny in our archive have won 9.4% of 3,248 runs since Jan 2008 (225 horses).

Weakest over 1m5f – 2m (all codes): 4.7% from 172.

GoingRunsWinsSRvs sireThis horse
Firm3412.9%−6.5—
Good to Firm593549.1%−0.3—
Good617538.6%−0.8—
Good to Soft278227.9%−1.5—
Soft300206.7%−2.7—
Heavy69710.1%+0.7—
Standard (AW)1,35714710.8%+1.40 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f508509.8%+0.4—
6f – 7f1,47815510.5%+1.10 from 1
1m – 1m1f590478%−1.4—
1m2f – 1m4f399328%−1.4—
1m5f – 2m17284.7%−4.7—
2m1f – 2m4f841214.3%+4.9—
2m5f – 3m1600%−9.4—
Over 3m100%−9.4—

Flat and jumps together (all codes) · since Jan 2008 · as at 27 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Noor El Houdah (IRE) (Fayruz)

9 siblings in the archive, 7 winners — best of them California Laws (GB) (5 wins).

The wins came over 6f–1m½f; the highest grade won is Class 2 (California Laws (GB)).

ProduceRunsWinsWin tripsBest grade
California Laws (GB)1956f–1mClass 2
Rampage (GB)426f–7fClass 5
Oneovdem (GB)1411m½fClass 5
Polar Auroras (GB)2611mClass 6
Vivre La Reve (GB)2811m½fClass 6
Bold Love (GB)1717fClass 5
On The Map (GB)1817fClass 5
Cuckoo Hill (GB)130——
Forceful Flame (GB)120——

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

Form

DateCourseRace PosBtn Wgt KTB Jockey SP
2012 · 1 run
30 Apr 12 Kempton (AW) Betfair Supporting Grassroots Racing Maiden Fillies' Stakes Class 5 · 6f · Standard · 12 ran 12/12 3 9-0 33C Hayley Turner 50/1

Quick answers

How many races has Mayo Miss won?
Mayo Miss (GB) has yet to win, from 1 archived start in 2012.
Who trained Mayo Miss?
Mayo Miss (GB) was trained by Tony Carroll on the most recent run on record, at Kempton (AW) on 30 April 2012.
Who is Mayo Miss's sire?
Mayo Miss (GB) is by Byron (GB) out of Noor El Houdah (IRE), whose sire is Fayruz.
What is Mayo Miss's sire's record?
Byron (GB)'s progeny in our archive have won 9.4% of 3,248 runs since Jan 2008 (225 horses), Flat and jumps together. Weakest over 1m5f – 2m (all codes): 4.7% from 172.
Who are Mayo Miss's siblings?
Out of Noor El Houdah (IRE), Mayo Miss (GB) has 9 other produce in our archive, 7 of them winners. Most wins: California Laws (GB) (5). Highest grade won: Class 2 (California Laws (GB)). The wins came over 6f–1m½f. As at Oct 2026.

Record shown from April 2012. 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.