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Horse profile

Maggie Byrne (IRE)

5yo mare (at last run, Oct 2013) · Last trainer John Laurence Cullen · Last owner James Joseph Oneill
by Oscar (IRE) out of Thespian (IRE) (Tiraaz)
4 runs · 4 courses · from Mar 2013
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 8 Oct 2013 — 4,775 days ago. Our archive can't say whether the horse is still in training.
Last run Oct 2013 · 18th of 19
KTB Profile

Maggie Byrne (IRE) is yet to win from 4 starts.

Based on 4 archived runs · updated 5 Nov 2026

Progeny in our archive

Produce record

As a dam, Maggie Byrne (IRE) has 2 produce in the archive, 1 winner — most wins Five Quarters (IRE) (1 win).

The wins came over 2m7½f; the highest grade won is Class 5 (Five Quarters (IRE)).

ProduceRunsWinsWin tripsBest grade
Five Quarters (IRE)312m7½fClass 5
Katesbridge (IRE)20——

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 93C the best of the last 3 rated runs · Punchestown, 23 Apr 2013

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 3 figures · best 93C · median 84
GoingRunsBestMedianSince 5 Nov 2025
Good1———
Soft1———
Heavy1———
DistanceRunsBestMedianSince 5 Nov 2025
1m5f – 2m293C88.5—
2m1f – 2m4f1———

Of 4 runs looked at, 1 has no figure: did not complete (or a non-runner row) (1).

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 3 figures from 4 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
Oscar (IRE)

Progeny in our archive have won 10.9% of 16,543 runs since Jan 2008 (1,456 horses).

Strongest on standard (aw) going: 18.1% from 105.

GoingRunsWinsSRvs sireThis horse
Firm5858.6%−2.3—
Good to Firm760648.4%−2.50 from 1
Good4,65847910.3%−0.60 from 1
Good to Soft2,80435812.8%+1.9—
Soft5,00654010.8%−0.10 from 1
Heavy3,15234510.9%00 from 1
Standard (AW)1051918.1%+7.2—
Distance (all codes)RunsWinsSRvs sireThis horse
6f – 7f6116.7%+5.8—
1m – 1m1f7228.6%+17.7—
1m2f – 1m4f9088.9%−2—
1m5f – 2m4,43951411.6%+0.70 from 3
2m1f – 2m4f5,91263010.7%−0.20 from 1
2m5f – 3m4,99653710.7%−0.2—
Over 3m1,09311810.8%−0.1—

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

Dam
Thespian (IRE) (Tiraaz)

4 siblings in the archive, 3 winners — best of them Clondaw Warrior (IRE) (12 wins).

The wins came over 1m4f–3m; the highest grade won is Class 1 (Clondaw Warrior (IRE)).

ProduceRunsWinsWin tripsBest grade
Clondaw Warrior (IRE)47121m4f–3mClass 1
Whizzzey Rascal (IRE)2042m–2m3½fClass 4
The Midwife (IRE)1722m4½f–2m7½fClass 4
Monty Don (IRE)50——

Record by conditions

GoingRunsWinsSR£1
Good 1 0 0% −1.00
Good to Firm 1 0 0% −1.00
Soft 1 0 0% −1.00
Heavy 1 0 0% −1.00

CourseRunsWinsSR£1
Tipperary 1 0 0% −1.00
Down Royal 1 0 0% −1.00
Punchestown 1 0 0% −1.00
Clonmel 1 0 0% −1.00

DistanceRunsWinsSR£1
1m5f – 2m 3 0 0% −3.00
2m1f – 2m4f 1 0 0% −1.00

JockeyRunsWinsSR£1
Richard Deegan 1 0 0% −1.00
Brian O'Connell 1 0 0% −1.00
Mr P A King 1 0 0% −1.00
Ms K Walsh 1 0 0% −1.00

HeadgearRunsWinsSR£1
None 2 0 0% −2.00
Tongue tie 1 0 0% −1.00
Hood + tongue tie 1 0 0% −1.00

TypeRunsWinsSR£1
NH Flat 3 0 0% −3.00
Hurdle 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.

Form

DateCourseRace PosBtn Wgt KTB Jockey SP
2013 · 4 runs
08 Oct 13+39d Tipperary Season Finale Flat Race 2m4f · Good · 19 ran 18/19 8½ 11-0 81C Richard Deegan 33/1
30 Aug 13+129d Down Royal Allied Bakeries Mares Maiden Hurdle 2m · Good To Firm · 13 ran UR/13 — 10-13 — Brian O'Connell 50/1
23 Apr 13+47d Punchestown Goffs Land Rover Bumper 2m · Soft · 25 ran 16/25 27 11-0 93C Mr P A King 50/1
07 Mar 13 Clonmel Ardfinnan Flat Race 2m½f · Heavy · 10 ran 7/10 nse 11-7 84A Ms K Walsh 10/1

Quick answers

How many races has Maggie Byrne won?
Maggie Byrne (IRE) has yet to win, from 4 archived starts in 2013.
Who trained Maggie Byrne?
Maggie Byrne (IRE) was trained by John Laurence Cullen on the most recent run on record, at Tipperary on 8 October 2013.
Who is Maggie Byrne's sire?
Maggie Byrne (IRE) is by Oscar (IRE) out of Thespian (IRE), whose sire is Tiraaz.
What is Maggie Byrne's sire's record?
Oscar (IRE)'s progeny in our archive have won 10.9% of 16,543 runs since Jan 2008 (1,456 horses), Flat and jumps together. Strongest on standard (aw) going: 18.1% from 105.
Who are Maggie Byrne's siblings?
Out of Thespian (IRE), Maggie Byrne (IRE) has 4 other produce in our archive, 3 of them winners. Most wins: Clondaw Warrior (IRE) (12). Highest grade won: Class 1 (Clondaw Warrior (IRE)). The wins came over 1m4f–3m. As at Nov 2026.
Has Maggie Byrne produced winners?
As a dam, Maggie Byrne (IRE) has 2 produce in our archive, 1 of them a winner. Most wins: Five Quarters (IRE) (1). Highest grade won: Class 5 (Five Quarters (IRE)). The wins came over 2m7½f. As at Nov 2026.

Record shown from March 2013. 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.