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Horse profile

South Island (IRE)

3yo colt · Trainer Donnacha Aidan O'Brien · Owner P Smithmagniertabord Smithwesterberg
8 runs · 4 courses · from Jun 2025
As at 8 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won last time out 2 wins · Navan & Curragh Last run 11 Jul 2026 · 1st of 5 Last raced off OR 100
KTB Profile

South Island is a colt by Wootton Bassett out of Amarena who has two wins from eight runs on turf. Both successes came for Donnacha Aidan O'Brien, at Curragh over 1m to 1m1f on soft ground in Sep 2025 and at Navan over 1m2f to 1m4f on good ground in Jul 2026 when he won last time out off an official rating of 100. He has raced three times at both Curragh and Leopardstown. He usually races held up.

Based on 8 archived runs · run-style from 8 commented runs since Jun 2025 · updated 8 Nov 2026
KTB at a glance OR at career high
Official rating100At career-high mark
100 79–100

KTB Speed and Rating

KTB Speed

Best recent Speed 101 the best of the last 3 graded (A or B) runs · Curragh, 23 May 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 →

Flat 8 figures · best 111C · median 91.5
GoingRunsBestMedianSince 8 Nov 2025
Good3111C1012 runs · 111 / 106
Soft391A81—
Good to Soft2105A98.51 run · —
DistanceRunsBestMedianSince 8 Nov 2025
1m – 1m1f4105A86—
1m2f – 1m4f3111C1013 runs · 111 / 101
6f – 7f1———

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 8 figures from 8 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 91A the best of the last 3 rated runs · Leopardstown, 12 Apr 2026 Official rating 100 at the last run, 11 Jul 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 8 figures · best 100A · median 89
GoingRunsBestMedianSince 8 Nov 2025
Good390B882 runs · 90 / 89
Soft3100A91—
Good to Soft291A801 run · —
DistanceRunsBestMedianSince 8 Nov 2025
1m – 1m1f4100A80—
1m2f – 1m4f391A903 runs · 91 / 90
6f – 7f1———

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 8 figures from 8 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 from 8 analysed runs since Jun 2025

  • Prominent 4 (50%) · 1 win
  • Led 2 (25%) · 1 win
  • Mid-division 2 (25%) · 0 wins

Pedigree intelligence

Sire

Progeny in our archive have won 13% of 5,703 runs since May 2015 (792 horses).

Strongest at trips under 6f (all codes): 16% from 162.

GoingRunsWinsSRvs sireThis horse
Firm200%−13—
Good to Firm5567313.1%+0.1—
Good1,30119114.7%+1.71 from 3
Good to Soft8479911.7%−1.30 from 2
Soft1,03015415%+21 from 3
Heavy3584813.4%+0.4—
Standard (AW)1,60917711%−2—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1622616%+3—
6f – 7f1,94630415.6%+2.60 from 1
1m – 1m1f1,92221911.4%−1.61 from 4
1m2f – 1m4f1,28615412%−11 from 3
1m5f – 2m2843612.7%−0.3—
2m1f – 2m4f9433.2%−9.8—
2m5f – 3m900%−13—

Flat and jumps together (all codes) · since May 2015 · as at 8 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Ahmadi (IRE)30——

Record by conditions

GoingRunsWinsSR£1
Good 3 1 33% +0.00
Soft 3 1 33% +1.50
Good to Soft 2 0 0% −2.00

CourseRunsWinsSR£1
Curragh 3 1 33% +1.50
Leopardstown 3 0 0% −3.00
Navan 1 1 100% +2.00
Tipperary 1 0 0% −1.00

DistanceRunsWinsSR£1
1m – 1m1f 4 1 25% +0.50
1m2f – 1m4f 3 1 33% +0.00
6f – 7f 1 0 0% −1.00

JockeyRunsWinsSR£1
Gavin Ryan 6 1 17% −1.50
Paddy Harnett 2 1 50% +1.00

HeadgearRunsWinsSR£1
None 7 2 29% +0.50
Cheekpieces 1 0 0% −1.00

SeasonRunsWinsSR£1
2026 3 1 33% +0.00
2025 5 1 20% −0.50

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
2026 · 3 runs
11 Jul 26+49d Navan Irish Stallion Farms EBF Race 1m2f · Good · 5 ran Sat in behind the pacesetter early - asked for effort with two and a half furlongs left - shared second approaching the furlong marker without reaching the front - got up in the last strides to win 1/5 9-5 100111C90B Paddy Harnett 2/1
23 May 26+41d Curragh Heider Family Stables Gallinule Stakes (Group 3) 1m2f · Good · 9 ran Sat behind the front group early - third at halfway - fourth and driven approaching 2f out - slipped to fifth inside the final furlong and held on without finding more 5/9 1½ 9-5 100101A88A Gavin Ryan 28/1
12 Apr 26+176d Leopardstown P.W. McGrath Memorial Ballysax Stakes (Group 3) 1m2f · Good To Yielding · 9 ran Sat handy behind pace - pushed along in third from 2f out - held that spot late but couldn't close final furlong 6/9 nse 9-5 9392A91A Gavin Ryan 50/1
2025 · 5 runs
18 Oct 25+20d Leopardstown Mongey Communications Eyrefield Stakes (Group 3) 1m1f · Yielding · 8 ran Shared front spot early - urged to keep up but yielded position entering straight then slipped to the back over a furlong out - held no more in reserve at the finish 8/8 1¾ 9-5 9491A60A Gavin Ryan 7/1
28 Sep 25+28d Curragh Tote 20K Euros Guaranteed Placepot Today Irish European Breeders Fund Maiden 1m1f · Yielding To Soft · 8 ran Set the pace from the off - challenged 3f out and driven approaching 2f out - responded with a strong finish from the final furlong to win 1/8 9-7 7981A100A Gavin Ryan 7/2
31 Aug 25+38d Tipperary Camas Park Irish EBF Maiden 1m1f · Good To Yielding · 12 ran Settled in midfield - hampered slightly on the bend before drifting left approaching 2f out - urged into 6th with a furlong left - unable to quicken and finished at a steady gait 6/12 3¼ 9-2 —105A69A Paddy Harnett 4/1
24 Jul 25+26d Leopardstown Frank Conroy Irish EBF Maiden 1m · Yielding To Soft · 8 ran Slow to break - settled second early and stayed there - pressed for effort 2f out but couldn't close on winner - held gap to finish clear second 2/8 3¾ 9-7 —63A91A Gavin Ryan 7/2
28 Jun 25 Curragh Barronstown Stud Irish European Breeders Fund (C & G) Maiden 7f · Good · 13 ran Settled in the pack - asked for effort over 2f out but hampered for room and 7th with a furlong left - stayed on at the same rate to finish 5th 5/13 ½ 9-5 —81C81A Gavin Ryan 25/1

Quick answers

How many races has South Island won?
South Island (IRE) won 2 of 8 archived starts between 2025 and 2026, a strike rate of 25%. Placed 3 times in total (37.5% of starts).
Who trains South Island?
South Island (IRE) is trained by Donnacha Aidan O'Brien, who saddled the horse on its most recent run on 11 July 2026.
Who is South Island's sire?
South Island (IRE) is by Wootton Bassett (GB) out of Amarena (FR), whose sire is Soldier Hollow.
What going does South Island prefer?
South Island (IRE) has the best record on good going: 1 win from 3 starts (33.3%). Only going bands with at least three archived starts are read, so this is a direction rather than a settled preference.
What is South Island's official rating?
The most recent official rating on record is 100, from the run on 11 July 2026. That is also the highest on record.
What is South Island's sire's record?
Wootton Bassett (GB)'s progeny in our archive have won 13% of 5,703 runs since May 2015 (792 horses), Flat and jumps together. Strongest at trips under 6f (all codes): 16% from 162.
Who are South Island's siblings?
Out of Amarena (FR), South Island (IRE) has 1 other produce in our archive, 0 of them winners. As at Nov 2026.

Record shown from June 2025. 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.