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Horse profile

Crios Cu Chulainn (IRE)

5yo mare · Trainer David K Walsh · Owner David K Walsh
by Idaho (IRE) out of Isabellas Girl (IRE) (Shirocco)
4 runs · 4 courses · from May 2026
As at 8 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
New yard Last run 17 Oct 2026 · 13th of 18
KTB Profile

Crios Cu Chulainn is a mare by Idaho out of an Isabellas Girl mare who has yet to win from four starts on turf. She has raced over trips from 1m5f to 2m4f on good and good to soft ground at four different Irish tracks. Her last run, at Limerick in Oct 2026, was her first for the yard when she finished 13 of 18, held, in the Thisisracing Maiden Hurdle.

Based on 4 archived runs · run-style from 4 commented runs since May 2026 · updated 8 Nov 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 85 the best of the last 2 graded (A or B) runs · Sligo, 9 Jun 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 4 figures · best 85A · median 64
GoingRunsBestMedianSince 8 Nov 2025
Good to Soft365B633 runs · 65 / 63
Good1——1 run · —
DistanceRunsBestMedianSince 8 Nov 2025
2m1f – 2m4f385A653 runs · 85 / 65
1m5f – 2m1——1 run · —

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 4 figures from 4 runs · as at 25 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 92A the best of the last 3 rated runs · Wexford, 27 May 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 4 figures · best 92A · median 83
GoingRunsBestMedianSince 8 Nov 2025
Good to Soft392A883 runs · 92 / 88
Good1——1 run · —
DistanceRunsBestMedianSince 8 Nov 2025
2m1f – 2m4f392A783 runs · 92 / 78
1m5f – 2m1——1 run · —

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 4 figures from 4 runs · as at 25 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 from 4 analysed runs since May 2026

  • Held up 3 (75%) · 0 wins
  • Prominent 1 (25%) · 0 wins

Pedigree intelligence

Sire
Idaho (IRE)

Progeny in our archive have won 9.3% of 289 runs since Mar 2024 (67 horses).

GoingRunsWinsSRvs sireThis horse
Good to Firm100%−9.3—
Good9399.7%+0.40 from 1
Good to Soft961010.4%+1.10 from 3
Soft6046.7%−2.6—
Heavy39410.3%+1—
Distance (all codes)RunsWinsSRvs sireThis horse
1m5f – 2m8778%−1.30 from 1
2m1f – 2m4f127107.9%−1.40 from 3
2m5f – 3m69710.1%+0.8—
Over 3m6350%+40.7—

Flat and jumps together (all codes) · since Mar 2024 · as at 8 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Isabellas Girl (IRE) (Shirocco)

1 sibling in the archive, 1 winner — best of them Theemeraldempress (IRE) (1 win).

The wins came over 2m2f.

ProduceRunsWinsWin tripsBest grade
Theemeraldempress (IRE)112m2f—

Record by conditions

GoingRunsWinsSR£1
Good to Soft 3 0 0% −3.00
Good 1 0 0% −1.00

CourseRunsWinsSR£1
Limerick (IRE) 1 0 0% −1.00
Sligo 1 0 0% −1.00
Wexford 1 0 0% −1.00
Punchestown 1 0 0% −1.00

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

JockeyRunsWinsSR£1
Paddy Cody 2 0 0% −2.00
Mr A P Kennedy 2 0 0% −2.00

TypeRunsWinsSR£1
Hurdle 2 0 0% −2.00
NH Flat 2 0 0% −2.00

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 SpdKTB Jockey SP
2026 · 4 runs
17 Oct 26+130d Limerick (IRE) #Thisisracing Maiden Hurdle 2m3f · Good To Yielding · 18 ran struggled at back throughout - tailed off in the closing stages - finished 13th 13/18 1¼ 10-12 63C66C Paddy Cody 12/1
09 Jun 26+13d Sligo Stephen Mullins & Sons Mares Maiden Hurdle 2m1½f · Good · 11 ran Small error at 1st - settled towards rear - pushed along after 3 out but made no headway and faded to finish well beaten 6/11 4½ 11-0 85A78A Paddy Cody 12/1
27 May 26+14d Wexford Wexford Racing Again 30th June Flat Race 2m4f · Good To Yielding · 13 ran Sat close behind the front group early - 5th at halfway - unable to make headway into the straight - dropped away and faded to finish well held 7/13 1¼ 11-0 65B92A Mr A P Kennedy 150/1
13 May 26 Punchestown Ladbrokes (Pro/Am) Flat Race 2m · Good To Yielding · 13 ran Held up towards the back early - still 8th at halfway - lost touch and dropped away over 3f out 9/13 hd 10-7 42C88C Mr A P Kennedy 80/1

Quick answers

How many races has Crios Cu Chulainn won?
Crios Cu Chulainn (IRE) has yet to win, from 4 archived starts in 2026.
Who trains Crios Cu Chulainn?
Crios Cu Chulainn (IRE) is trained by David K Walsh, who saddled the horse on its most recent run on 17 October 2026.
Who is Crios Cu Chulainn's sire?
Crios Cu Chulainn (IRE) is by Idaho (IRE) out of Isabellas Girl (IRE), whose sire is Shirocco.
What is Crios Cu Chulainn's sire's record?
Idaho (IRE)'s progeny in our archive have won 9.3% of 289 runs since Mar 2024 (67 horses), Flat and jumps together.
Who are Crios Cu Chulainn's siblings?
Out of Isabellas Girl (IRE), Crios Cu Chulainn (IRE) has 1 other produce in our archive, 1 of them a winner. Most wins: Theemeraldempress (IRE) (1). The wins came over 2m2f. As at Nov 2026.

Record shown from May 2026. 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.