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Horse profile

Masonry (GB)

4yo filly (at last run, Jun 2024) · Last trainer Martin Dunne · Last owner W Prosser
by Mayson (GB) out of Lulea (GB) (Authorized)
2 runs · 1 course · from May 2024
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 6 Jun 2024 — 867 days ago. Our archive can't say whether the horse is still in training.
Last run Jun 2024 · 12th of 12
KTB Profile

Masonry is a lightly raced filly by Mayson out of a dam who has produced two winners from three runners to date. She made her debut in a Class 4 novice at Chelmsford City in May 2024 and finished 12 of 12 there again in Jun 2024 over 1m2f-1m4f on standard going. Her sire’s progeny in the archive have recorded a 10.7% strike rate from 7,358 runs since Jan 2008, with their strongest record coming under 6f.

Based on 2 archived runs · updated 21 Oct 2026

KTB Speed and Rating

KTB Speed

Best recent Speed — no A or B graded figure in the last 3 runs; the figures below carry grade C

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 52C · median 48.5
GoingRunsBestMedianSince 21 Oct 2025
Standard (AW)252C48.5—
DistanceRunsBestMedianSince 21 Oct 2025
1m2f – 1m4f1———
1m – 1m1f1———

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 54C the best of the last 2 rated runs · Chelmsford City (AW), 6 Jun 2024

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 54C · median 52.5
GoingRunsBestMedianSince 21 Oct 2025
Standard (AW)254C52.5—
DistanceRunsBestMedianSince 21 Oct 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

Progeny in our archive have won 10.7% of 7,368 runs since Jan 2008 (442 horses).

Strongest at trips under 6f (all codes): 13.8% from 1,729. Weakest over 1m5f – 2m (all codes): 2.8% from 106.

GoingRunsWinsSRvs sireThis horse
Firm22627.3%+16.6—
Good to Firm1,02312111.8%+1.1—
Good1,37013910.1%−0.6—
Good to Soft8069211.4%+0.7—
Soft96911511.9%+1.2—
Heavy320319.7%−1—
Standard (AW)2,85828510%−0.70 from 2
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1,72923813.8%+3.1—
6f – 7f3,90239810.2%−0.5—
1m – 1m1f1,1441119.7%−10 from 1
1m2f – 1m4f451378.2%−2.50 from 1
1m5f – 2m10632.8%−7.9—
2m1f – 2m4f3013.3%−7.4—
2m5f – 3m6116.7%+6—

Flat and jumps together (all codes) · since Jan 2008 · as at 21 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Lulea (GB) (Authorized)

3 siblings in the archive, 2 winners — best of them Charming Fellow (GB) (1 win).

The wins came over 7f–1m; the highest grade won is Class 4 (The Meter (GB)).

ProduceRunsWinsWin tripsBest grade
Charming Fellow (GB)1511mClass 5
The Meter (GB)717fClass 4
Sequential (GB)50——

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

Form

DateCourseRace PosBtn Wgt SpdKTB Jockey SP
06 Jun 24+14d Chelmsford City (AW) Bet Boost At bet365 EBF 'Confined' Fillies' Novice Stakes (GBB Race) Class 4 · 10f · Standard · 12 ran 12/12 18 9-13 45C54C Darragh Keenan 300/1
23 May 24 Chelmsford City (AW) Watch Live Racing At bet365 Novice Stakes (GBB Race) Class 4 · 8f · Standard · 16 ran 16/16 ½ 9-11 52C51C Darragh Keenan 250/1

Quick answers

How many races has Masonry (GB) won?
Masonry (GB) has yet to win, from 2 archived starts in 2024.
Who trained Masonry (GB)?
Masonry (GB) was trained by Martin Dunne on the most recent run on record, at Chelmsford City (AW) on 6 June 2024.
Who is Masonry (GB)'s sire?
Masonry (GB) is by Mayson (GB) out of Lulea (GB), whose sire is Authorized.
What is Masonry (GB)'s sire's record?
Mayson (GB)'s progeny in our archive have won 10.7% of 7,368 runs since Jan 2008 (442 horses), Flat and jumps together. Strongest at trips under 6f (all codes): 13.8% from 1,729. Weakest over 1m5f – 2m (all codes): 2.8% from 106.
Who are Masonry (GB)'s siblings?
Out of Lulea (GB), Masonry (GB) has 3 other produce in our archive, 2 of them winners. Most wins: Charming Fellow (GB) (1). Highest grade won: Class 4 (The Meter (GB)). The wins came over 7f–1m. As at Oct 2026.

Record shown from May 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.