As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Last run 23 Aug 2026 · 5th of 13Last raced off OR 86
KTB Profile
Mya Du Clos is a maiden who has failed to win in eight starts on turf, with one placing. Her best effort came when second of 12 at Uttoxeter in Jun 2026. She has raced over 1m5f to 2m on four occasions, 2m1f to 2m4f on three occasions and 2m5f to 3m once, on good, good to soft and heavy ground. The filly finished fifth of 13 at Worcester in Aug 2026 in a Class 5 mares handicap hurdle. She last ran off an official rating of 86, below her highest ever mark of 89.
Based on 8 archived runs · run-style from 8 commented runs since Oct 2025 · updated 5 Nov 2026
A/E compares actual wins with what starting prices implied. "Fair" strips the bookmaker margin from the expectation, so favourites and longshots are judged on the same footing — figures near 1.00 mean the market priced this horse about right.
KTB Speed and Rating
KTB Speed
Best recent Speed119the best of the last 3 graded (A or B) runs · Worcester, 23 Aug 2026
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 →
Jumps 8 figures · best 119B · median 81.5
Going
Runs
Best
Median
Since 5 Nov 2025
Good to Soft
4
109B
81.5
3 runs · 109 / 82
Good
3
119B
105
3 runs · 119 / 105
Heavy
1
—
—
1 run · —
Distance
Runs
Best
Median
Since 5 Nov 2025
1m5f – 2m
4
82A
80
3 runs · 82 / 81
2m1f – 2m4f
3
119B
109
3 runs · 119 / 109
2m5f – 3m
1
—
—
1 run · —
KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 8 figures from 8 runs · as at 3 Oct 2026 · a record, not a forecast
KTB Rating
Best recent KTB Rating103Athe best of the last 3 rated runs · Uttoxeter, 13 Jun 2026Official rating 86at the last run, 23 Aug 2026
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 →
Jumps 8 figures · best 103A · median 86
Going
Runs
Best
Median
Since 5 Nov 2025
Good to Soft
4
91A
86
3 runs · 86 / 86
Good
3
103A
97
3 runs · 103 / 97
Heavy
1
—
—
1 run · —
Distance
Runs
Best
Median
Since 5 Nov 2025
1m5f – 2m
4
91A
83.5
3 runs · 86 / 81
2m1f – 2m4f
3
103A
97
3 runs · 103 / 97
2m5f – 3m
1
—
—
1 run · —
KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 8 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.
Progeny in our archive have won 11.5% of 312 runs since May 2023 (59 horses).
Strongest on soft going: 16.3% from 104. Weakest on heavy going: 7.2% from 111.
Going
Runs
Wins
SR
vs sire
This horse
Good to Firm
2
0
0%
−11.5
—
Good
43
5
11.6%
+0.1
0 from 3
Good to Soft
37
5
13.5%
+2
0 from 4
Soft
104
17
16.3%
+4.8
—
Heavy
111
8
7.2%
−4.3
0 from 1
Standard (AW)
15
1
6.7%
−4.8
—
Distance (all codes)
Runs
Wins
SR
vs sire
This horse
1m – 1m1f
14
1
7.1%
−4.4
—
1m2f – 1m4f
10
1
10%
−1.5
—
1m5f – 2m
76
11
14.5%
+3
0 from 4
2m1f – 2m4f
170
18
10.6%
−0.9
0 from 3
2m5f – 3m
41
5
12.2%
+0.7
0 from 1
Over 3m
1
0
0%
−11.5
—
Flat and jumps together (all codes) · since May 2023 · as at 5 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast
Dam
Cyazalee (FR) (Martaline)
No other produce in our archive. It holds racing in Great Britain, Ireland and France from 2005, so siblings racing elsewhere won’t appear here.
Record by conditions
Going
Runs
Wins
SR
£1
Good to Soft
4
0
0%
−4.00
Good
3
0
0%
−3.00
Heavy
1
0
0%
−1.00
Class
Runs
Wins
SR
£1
Class 5
5
0
0%
−5.00
Class 4
2
0
0%
−2.00
Class 3
1
0
0%
−1.00
Course
Runs
Wins
SR
£1
Worcester
1
0
0%
−1.00
Uttoxeter
1
0
0%
−1.00
Ffos Las
1
0
0%
−1.00
Southwell
1
0
0%
−1.00
Hereford
1
0
0%
−1.00
Newbury
1
0
0%
−1.00
Ludlow
1
0
0%
−1.00
Stratford
1
0
0%
−1.00
Distance
Runs
Wins
SR
£1
1m5f – 2m
4
0
0%
−4.00
2m1f – 2m4f
3
0
0%
−3.00
2m5f – 3m
1
0
0%
−1.00
Jockey
Runs
Wins
SR
£1
Jack Tudor
5
0
0%
−5.00
Mr J J Murphy-Knight
3
0
0%
−3.00
Headgear
Runs
Wins
SR
£1
None
6
0
0%
−6.00
Hood
2
0
0%
−2.00
Season
Runs
Wins
SR
£1
2026
6
0
0%
−6.00
2025
2
0
0%
−2.00
Type
Runs
Wins
SR
£1
Hurdle
7
0
0%
−7.00
NH Flat
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.
Neu-Servo Supports Larsen's Pride Mares' Handicap Hurdle RaceClass 5 · 2m4f · Good · 13 ranSettled in the pack - jumped messily in 4th - made progress to share third approaching 3 out - laboured over 2 out under pressure and faded up the run-in
Groundshore Cup Novices' Limited Handicap HurdleClass 5 · 2m4f · Good · 12 ranSettled in the pack early - made progress three out to share the front briefly before two out - stayed on but lost the advantage nearing the last - unable to find more on the run to the line
Mya Du Clos (FR) has yet to win, from 8 archived starts between 2025 and 2026. Placed 1 time in total (12.5% of starts).
Who trains Mya Du Clos?
Mya Du Clos (FR) is trained by Christian Williams, who saddled the horse on its most recent run on 23 August 2026.
Who is Mya Du Clos's sire?
Mya Du Clos (FR) is by Tunis (POL) out of Cyazalee (FR), whose sire is Martaline.
What is Mya Du Clos's official rating?
The most recent official rating on record is 86, from the run on 23 August 2026. The highest on record is 89.
What is Mya Du Clos's sire's record?
Tunis (POL)'s progeny in our archive have won 11.5% of 312 runs since May 2023 (59 horses), Flat and jumps together. Strongest on soft going: 16.3% from 104. Weakest on heavy going: 7.2% from 111.
Mya Du Clos (FR)·0–8·SR 0%
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