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Horse profile

Sempo (IRE)

10yo gelding (at last run, Aug 2024) · Last trainer Joseph Patrick O'Brien · Last owner Martin Osullivan
by Oscar (IRE) out of Miss Cozzene (FR) (Solid Illusion)
18 runs · 11 courses · from Sep 2018
As at 14 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 1 Aug 2024 — 804 days ago. Our archive can't say whether the horse is still in training.
Last run Aug 2024 2 wins · Thurles Headgear returns LTO Last raced off OR 133
KTB Profile

Sempo (IRE) is 2 from 18. Hasn't won since Feb 2020. Last raced off 133, 9lb below the career-high mark.

Based on 18 archived runs · run-style from 1 commented run · updated 14 Oct 2026
KTB at a glance OR ↓ 9lb off peak
Official rating133↓ 9lb off peak
133 125–142

KTB Speed and Rating

KTB Speed

Best recent Speed 116 the best of the last 3 graded (A or B) runs · Fairyhouse, 5 Apr 2021

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.

Jumps 13 figures · best 125B · median 106
GoingRunsBestMedianSince 14 Oct 2025
Soft8122B96.5—
Good to Soft2107A89.5—
Good2125B110.5—
Heavy1———
DistanceRunsBestMedianSince 14 Oct 2025
1m5f – 2m7125B106—
2m5f – 3m3122B96—
2m1f – 2m4f2113B92.5—
Over 3m1———

Of 18 runs looked at, 5 have no figure: did not complete (2) · obstacles omitted — the race ran a shortened course (2) · not enough races on the card to set the day (under 4) (1).

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 13 figures from 18 runs · as at 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating (jumps) 124B the best of the last 3 rated runs · Cork, 31 Mar 2024 Official rating 133 at the last jumps run, 1 Aug 2024

Best recent KTB Rating (flat) 78A the best of the last 1 rated run · Listowel, 11 Sep 2018

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.

Jumps 14 figures · best 147A · median 133
GoingRunsBestMedianSince 14 Oct 2025
Soft8135A133—
Good to Soft3147A143—
Good2141A129—
Heavy1———
DistanceRunsBestMedianSince 14 Oct 2025
1m5f – 2m7143A134—
2m5f – 3m4147A127.5—
2m1f – 2m4f2135A125.5—
Over 3m1———
Flat 1 figure · too few for a breakdown

Of 18 runs looked at, 3 have no figure: did not complete (or a non-runner row) (3).

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 15 figures from 18 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.

Pedigree intelligence

Sire
Oscar (IRE)

Progeny in our archive have won 10.9% of 16,542 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%−2.5—
Good4,65847910.3%−0.61 from 3
Good to Soft2,80335812.8%+1.91 from 3
Soft5,00654010.8%−0.10 from 9
Heavy3,15234510.9%00 from 3
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%+0.71 from 8
2m1f – 2m4f5,91263010.7%−0.20 from 4
2m5f – 3m4,99553710.8%−0.11 from 5
Over 3m1,09311810.8%−0.10 from 1

Flat and jumps together (all codes) · since Jan 2008 · as at 14 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Miss Cozzene (FR) (Solid Illusion)

7 siblings in the archive, 2 winners — best of them Aqua Dude (IRE) (3 wins).

The wins came over 1m7½f–2m4½f; the highest grade won is Class 3 (Aqua Dude (IRE)).

ProduceRunsWinsWin tripsBest grade
Aqua Dude (IRE)1431m7½f–2m4½fClass 3
Trixie Mc (IRE)2222m–2m1f—
Princess Bella (IRE)90——
Miss Vivacious (IRE)110——
Princess Massini (IRE)10——
Conor's Joy (IRE)20——
Anastatia (IRE)10——

Record by conditions

GoingRunsWinsSR£1
Soft 9 0 0% −9.00
Good 3 1 33% −0.62
Good to Soft 3 1 33% −1.27
Heavy 3 0 0% −3.00

ClassRunsWinsSR£1
Class 1 2 0 0% −2.00

CourseRunsWinsSR£1
Punchestown 3 0 0% −3.00
Leopardstown 3 0 0% −3.00
Fairyhouse 2 0 0% −2.00
Cheltenham 2 0 0% −2.00
Thurles 2 2 100% +2.11
Galway 1 0 0% −1.00
Cork 1 0 0% −1.00
Killarney 1 0 0% −1.00
Navan 1 0 0% −1.00
Naas 1 0 0% −1.00
Listowel 1 0 0% −1.00

DistanceRunsWinsSR£1
1m5f – 2m 8 1 13% −5.62
2m5f – 3m 5 1 20% −3.27
2m1f – 2m4f 4 0 0% −4.00
Over 3m 1 0 0% −1.00

JockeyRunsWinsSR£1
J J Slevin 9 1 11% −7.27
Donagh Meyler 4 0 0% −4.00
Mr Derek O'Connor 4 1 25% −1.62
Davy Russell 1 0 0% −1.00

HeadgearRunsWinsSR£1
Tongue tie 14 2 14% −9.89
None 4 0 0% −4.00

SeasonRunsWinsSR£1
2024 3 0 0% −3.00
2021 5 0 0% −5.00
2020 4 1 25% −2.27
2019 4 1 25% −1.62
2018 2 0 0% −2.00

TypeRunsWinsSR£1
Chase 8 0 0% −8.00
Hurdle 6 1 17% −4.27
NH Flat 3 1 33% −0.62
Flat 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
01 Aug 24+92d Galway Guinness Beginners Chase 22.5f · Good · 11 ran Sat just behind the pace early - shared the front for a spell around the 7th - third with five to jump - stumbled while still handy after the second-last then pulled up sharply after the final fence PU/11 — 11-12 133—— J J Slevin 9/1
01 May 24+31d Punchestown Louis Fitzgerald Hotel Hurdle 19.5f · Good To Yielding · 14 ran 8/14 9 11-12 14272B116A J J Slevin 40/1
31 Mar 24+989d Cork Bar One Racing Hurdle 16f · Soft To Heavy · 5 ran 2/5 12 11-2 142106C124B J J Slevin 12/1
16 Jul 21+102d Killarney Live Streaming On The BoyleSports App Novice Chase 23f · Good · 7 ran 5/7 1½ 11-2 13996B117B Donagh Meyler 11/8F
05 Apr 21+30d Fairyhouse BoyleSports Irish Grand National Chase (Extended Handicap Chase) (Grade A) 29f · Yielding · 28 ran 5/28 7 10-10 139116B131A Donagh Meyler 20/1
06 Mar 21+20d Navan Flyingbolt Novice Chase (Grade 3) 16f · Soft · 8 ran 2/8 7 11-3 —84A134A J J Slevin 4/1
14 Feb 21+28d Punchestown Punchestown Festival Of A Different Colour Rated Novice Chase 16f · Soft · 8 ran 3/8 5 11-5 —82A116B Donagh Meyler 7/2
17 Jan 21+20d Punchestown Sky Bet Killiney Novice Chase (Grade 3) 20f · Heavy · 5 ran UR/5 — 11-3 ——— J J Slevin 100/1
28 Dec 20+14d Leopardstown Ballymaloe Foods Beginners Chase 21f · Yielding · 7 ran 3/7 14 12-0 —79A123B J J Slevin 6/1
14 Dec 20+276d Naas Ballymore Beginners Chase 19f · Heavy · 10 ran UR/10 — 12-0 ——— Donagh Meyler 13/2
13 Mar 20+36d Cheltenham Albert Bartlett Novices' Hurdle (Grade 1) (Registered As The Spa Novices' Hurdle) Class 1 · 24f · Soft · 19 ran 6/19 2½ 11-5 142122B132A J J Slevin 12/1
06 Feb 20+39d Thurles Holycross Maiden Hurdle 22.5f · Good To Yielding · 16 ran 1/16 11-12 ——147A J J Slevin 8/11F
29 Dec 19+29d Leopardstown Pigsback.com Maiden Hurdle 20.5f · Yielding · 16 ran 2/16 1¾ 11-12 —113B135A J J Slevin 7/2
30 Nov 19+262d Fairyhouse Kettles Country House Supporting Fingal Ravens GAA Maiden Hurdle 16f · Soft · 25 ran 3/25 2¼ 11-12 —71B134A Davy Russell 6/4F
13 Mar 19+34d Cheltenham Weatherbys Champion Bumper (Standard Open NH Flat Race) (Grade 1) Class 1 · 16.5f · Soft · 14 ran 6/14 ½ 11-5 125109B135A Mr Derek O'Connor 12/1
07 Feb 19+43d Thurles Munster Flat Race 16f · Good · 16 ran 1/16 11-13 —125B141A Mr Derek O'Connor 11/8F
26 Dec 18+106d Leopardstown Tote Supporting Irish Racing Flat Race 16f · Good To Yielding · 11 ran 3/11 1 11-9 —107A143A Mr Derek O'Connor 14/1
11 Sep 18 Listowel Kerry Petroleum Flat Race 16f · Yielding To Soft · 17 ran 4/17 ¾ 11-7 ——78A Mr Derek O'Connor 4/1

Quick answers

How many races has Sempo (IRE) won?
Sempo (IRE) won 2 of 18 archived starts between 2018 and 2024, a strike rate of 11.1%. Placed 8 times in total (44.4% of starts).
Who trained Sempo (IRE)?
Sempo (IRE) was trained by Joseph Patrick O'Brien on the most recent run on record, at Galway on 1 August 2024.
Who is Sempo (IRE)'s sire?
Sempo (IRE) is by Oscar (IRE) out of Miss Cozzene (FR), whose sire is Solid Illusion.
What going does Sempo (IRE) prefer?
Sempo (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 Sempo (IRE)'s official rating?
The most recent official rating on record is 133, from the run on 1 August 2024. The highest on record is 142.
What is Sempo (IRE)'s sire's record?
Oscar (IRE)'s progeny in our archive have won 10.9% of 16,542 runs since Jan 2008 (1,456 horses), Flat and jumps together. Strongest on standard (aw) going: 18.1% from 105.
Who are Sempo (IRE)'s siblings?
Out of Miss Cozzene (FR), Sempo (IRE) has 7 other produce in our archive, 2 of them winners. Most wins: Aqua Dude (IRE) (3). Highest grade won: Class 3 (Aqua Dude (IRE)). The wins came over 1m7½f–2m4½f. As at Oct 2026.

Record shown from September 2018. 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.