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Horse profile

Arniemac (IRE)

4yo gelding (at last run, Nov 2023) · Last trainer Ross O'Sullivan · Last owner Arniemac Partnership
by Fascinating Rock (IRE) out of Theola (IRE) (Kalanisi)
5 runs · 5 courses · from Nov 2022
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 5 Nov 2023 — 1,080 days ago. Our archive can't say whether the horse is still in training.
Last run Nov 2023 · 13th of 13 Won at Killarney New yard Last raced off OR 83
KTB Profile

Arniemac won one of five starts, the success coming in the Fexco Maiden at Killarney over 1m – 1m1f on good to soft in May 2023. The gelding, by Fascinating Rock out of a Kalanisi mare, has raced on five different courses. His last run, at Curragh in Nov 2023, was his first for Ross O’Sullivan and came when he finished 13 of 13 off an official rating of 83, which was also his highest ever mark.

Based on 5 archived runs · updated 21 Oct 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 95 the best of the last 1 graded (A or B) run · Killarney, 16 May 2023

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 4 figures · best 95A · median 84
GoingRunsBestMedianSince 21 Oct 2025
Heavy284C50.5—
Good to Soft1———
Soft1———
DistanceRunsBestMedianSince 21 Oct 2025
1m – 1m1f295A56—
Under 6f1———
6f – 7f1———

Of 5 runs looked at, 1 has no figure: no standard for this course, surface and code on the window (1).

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 4 figures from 5 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 96A the best of the last 3 rated runs · Killarney, 16 May 2023 Official rating 83 at the last run, 5 Nov 2023

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 5 figures · best 96A · median 88
GoingRunsBestMedianSince 21 Oct 2025
Heavy294A73.5—
Standard (AW)1———
Good to Soft1———
Soft1———
DistanceRunsBestMedianSince 21 Oct 2025
1m – 1m1f296A74.5—
6f – 7f294A76.5—
Under 6f1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 5 figures from 5 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 9.4% of 1,112 runs since Jan 2008 (101 horses).

GoingRunsWinsSRvs sireThis horse
Firm4125%+15.6—
Good to Firm5647.1%−2.3—
Good278279.7%+0.3—
Good to Soft1721810.5%+1.11 from 1
Soft232198.2%−1.20 from 1
Heavy10376.8%−2.60 from 2
Standard (AW)2672910.9%+1.50 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f2528%−1.40 from 1
6f – 7f239218.8%−0.60 from 2
1m – 1m1f228187.9%−1.51 from 2
1m2f – 1m4f2462911.8%+2.4—
1m5f – 2m182168.8%−0.6—
2m1f – 2m4f141128.5%−0.9—
2m5f – 3m42511.9%+2.5—
Over 3m9222.2%+12.8—

Flat and jumps together (all codes) · since Jan 2008 · as at 20 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Theola (IRE) (Kalanisi)

5 siblings in the archive, 3 winners — best of them Bowmore (IRE) (3 wins).

The wins came over 1m–2m1½f; the highest grade won is Class 3 (Bowmore (IRE)).

ProduceRunsWinsWin tripsBest grade
Bowmore (IRE)2032m½f–2m1½fClass 3
Theomour (FR)621m2½f–1m4f—
Future Score (IRE)311mClass 5
Ginger Lady (IRE)70——
Theodor (IRE)80——

Record by conditions

GoingRunsWinsSR£1
Heavy 2 0 0% −2.00
Standard (AW) 1 0 0% −1.00
Good to Soft 1 1 100% +4.00
Soft 1 0 0% −1.00

CourseRunsWinsSR£1
Curragh 1 0 0% −1.00
Laytown (AW) 1 0 0% −1.00
Killarney 1 1 100% +4.00
Sligo 1 0 0% −1.00
Naas 1 0 0% −1.00

DistanceRunsWinsSR£1
1m – 1m1f 2 1 50% +3.00
6f – 7f 2 0 0% −2.00
Under 6f 1 0 0% −1.00

JockeyRunsWinsSR£1
Conor Stone-Walsh 1 0 0% −1.00
Mr J L Gleeson 1 0 0% −1.00
Dylan Browne McMonagle 1 1 100% +4.00
Declan McDonogh 1 0 0% −1.00
Gary Halpin 1 0 0% −1.00

HeadgearRunsWinsSR£1
Tongue tie 2 0 0% −2.00
None 2 1 50% +3.00
Hood 1 0 0% −1.00

SeasonRunsWinsSR£1
2023 4 1 25% +1.00
2022 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 ORSpdKTB Jockey SP
05 Nov 23+54d Curragh Tote Athgarvan Handicap 8f · Heavy · 13 ran 13/13 17 8-10 8317C53C Conor Stone-Walsh 25/1
12 Sep 23+119d Laytown (AW) Gilna's Cottage Inn (Q.R.) Race 7f · Standard · 7 ran 5/7 1¼ 11-9 83—59A Mr J L Gleeson 5/4
16 May 23+16d Killarney Fexco Maiden 8f · Good To Yielding · 11 ran 1/11 9-9 —95A96A Dylan Browne McMonagle 4/1
30 Apr 23+175d Sligo Tote Download The App Median Auction Maiden 5.5f · Yielding To Soft · 5 ran 2/5 3¼ 10-4 —84C88B Declan McDonogh 11/4
06 Nov 22 Naas Sobac Healthy Soil soil.ie Maiden 6f · Heavy · 13 ran 4/13 nk 9-8 —84C94A Gary Halpin 22/1

Quick answers

How many races has Arniemac (IRE) won?
Arniemac (IRE) won 1 of 5 archived starts between 2022 and 2023, a strike rate of 20%. Placed 2 times in total (40% of starts).
Who trained Arniemac (IRE)?
Arniemac (IRE) was trained by Ross O'Sullivan on the most recent run on record, at Curragh on 5 November 2023.
Who is Arniemac (IRE)'s sire?
Arniemac (IRE) is by Fascinating Rock (IRE) out of Theola (IRE), whose sire is Kalanisi.
What is Arniemac (IRE)'s official rating?
The most recent official rating on record is 83, from the run on 5 November 2023. That is also the highest on record.
What is Arniemac (IRE)'s sire's record?
Fascinating Rock (IRE)'s progeny in our archive have won 9.4% of 1,112 runs since Jan 2008 (101 horses), Flat and jumps together.
Who are Arniemac (IRE)'s siblings?
Out of Theola (IRE), Arniemac (IRE) has 5 other produce in our archive, 3 of them winners. Most wins: Bowmore (IRE) (3). Highest grade won: Class 3 (Bowmore (IRE)). The wins came over 1m–2m1½f. As at Oct 2026.

Record shown from November 2022. 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.