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Horse profile

Book Of Kells (IRE)

2yo colt · Trainer Aidan O'Brien · Owner Mrs John Magnier Michael Tabor Derrick Smith
by Dubawi (IRE) out of Rhododendron (IRE) (Galileo (IRE))
1 run · 1 course · from Nov 2026
As at 15 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Last run 1 Nov 2026 · 8th of 23
KTB Profile

Lightly raced 2yo colt with 1 start since Nov 2026. Finished 8 of 23 at Curragh (IRE) last time. By Dubawi (IRE), whose progeny in our archive have won 18.4% of 12,996 runs since Apr 2009.

Based on 1 archived run · run-style from 1 commented run since Nov 2026 · updated 15 Nov 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 1 figure · too few for a breakdown

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 1 figure from 1 run · as at 9 Nov 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 59A the best of the last 1 rated run · Curragh (IRE), 1 Nov 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 →

Flat 1 figure · too few for a breakdown

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 1 figure from 1 run · as at 9 Nov 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.

Pedigree intelligence

Sire

Progeny in our archive have won 18.4% of 12,996 runs since Apr 2009 (1,531 horses).

Weakest at trips under 6f (all codes): 9.8% from 429.

GoingRunsWinsSRvs sireThis horse
Firm481122.9%+4.5—
Good to Firm2,32447820.6%+2.2—
Good3,17056517.8%−0.6—
Good to Soft1,75431217.8%−0.6—
Soft1,91632917.2%−1.20 from 1
Heavy60210517.4%−1—
Standard (AW)3,18058618.4%0—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f429429.8%−8.6—
6f – 7f3,12958118.6%+0.2—
1m – 1m1f3,87572818.8%+0.40 from 1
1m2f – 1m4f3,84477320.1%+1.7—
1m5f – 2m1,21119015.7%−2.7—
2m1f – 2m4f3384914.5%−3.9—
2m5f – 3m1381913.8%−4.6—
Over 3m32618.8%+0.4—

Flat and jumps together (all codes) · since Apr 2009 · as at 14 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Rhododendron (IRE) (Galileo (IRE))

2 siblings in the archive, 1 winner — best of them Auguste Rodin (IRE) (7 wins).

The wins came over 7f–1m4f; the highest grade won is Group 1 (Auguste Rodin (IRE)).

ProduceRunsWinsWin tripsBest grade
Auguste Rodin (IRE)1377f–1m4fGroup 1
Canary Island (IRE)10——

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

Form

DateCourseRace PosBtn Wgt SpdKTB Jockey SP
2026 · 1 run
01 Nov 26 Curragh (IRE) Irish EBF Maiden (Smullen Series) 1m · Yielding To Soft · 23 ran Raced in midfield - urged on over 2f out - soon under hands and heels yet no extra from over 1f out - finished 8th 8/23 1¼ 9-2 59C59A Jack Cleary 15/2

Quick answers

How many races has Book Of Kells won?
Book Of Kells (IRE) has yet to win, from 1 archived start in 2026.
Who trains Book Of Kells?
Book Of Kells (IRE) is trained by Aidan O'Brien, who saddled the horse on its most recent run on 1 November 2026.
Who is Book Of Kells's sire?
Book Of Kells (IRE) is by Dubawi (IRE) out of Rhododendron (IRE), whose sire is Galileo (IRE).
What is Book Of Kells's sire's record?
Dubawi (IRE)'s progeny in our archive have won 18.4% of 12,996 runs since Apr 2009 (1,531 horses), Flat and jumps together. Weakest at trips under 6f (all codes): 9.8% from 429.
Who are Book Of Kells's siblings?
Out of Rhododendron (IRE), Book Of Kells (IRE) has 2 other produce in our archive, 1 of them a winner. Most wins: Auguste Rodin (IRE) (7). Highest grade won: Group 1 (Auguste Rodin (IRE)). The wins came over 7f–1m4f. As at Nov 2026.

Record shown from November 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.