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Horse profile

Grandpa Cen (IRE)

4yo colt · Trainer Patrik Olave Valdivielso · Owner Yeguada Centurion Slu
by Uncle Mo (USA) out of Instant Reflex (USA) (Quality Road)
3 runs · 3 courses · from Jul 2026
As at 8 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
Won last time out 2 wins · Nantes (FR) & La Teste De Buch (FR) Last run 14 Oct 2026 · 1st of 8 Last raced off OR 96
KTB Profile

Grandpa Cen is 2 from 3 on turf with both wins at 1m – 1m1f, including a Listed success in the Grand Prix Anjou Bretagne - Fonds Europeen De L'elevage at Nantes in Oct 2026. He won the Prix Paul Duboscq at La Teste De Buch on good ground the previous month. His last run, at Nantes in Oct 2026, was a win off an official rating of 96. By Uncle Mo out of an Instant Reflex mare, he has shown a good strike rate on his three starts to date.

Based on 3 archived runs · updated 8 Nov 2026

KTB Speed and Rating

KTB Speed

No KTB Speed figures for this horse. The engine scores GB and Irish racing from Oct 2016; runs elsewhere, or earlier, have no figure.

KTB Speed v1 · batch 15 Sep 2026 · GB & Irish racing only · 0 figures from 0 runs · a record, not a forecast

KTB Rating

No KTB Rating figures for this horse. The engine scores GB and Irish racing; runs elsewhere, or earlier, have no figure.

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 0 figures from 0 runs · 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
Uncle Mo (USA)

Progeny in our archive have won 16.1% of 118 runs since Jun 2017 (28 horses).

GoingRunsWinsSRvs sireThis horse
Firm200%−16.1—
Good to Firm18316.7%+0.6—
Good2129.5%−6.61 from 1
Good to Soft600%−16.10 from 1
Soft16212.5%−3.6—
Heavy8225%+8.91 from 1
Standard (AW)471021.3%+5.2—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1119.1%−7—
6f – 7f38615.8%−0.3—
1m – 1m1f40820%+3.92 from 3
1m2f – 1m4f27414.8%−1.3—
1m5f – 2m200%−16.1—

Flat and jumps together (all codes) · since Jun 2017 · as at 8 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Instant Reflex (USA) (Quality Road)

1 sibling in the archive, 0 winners.

ProduceRunsWinsWin tripsBest grade
Quick Reflex (USA)10——

Record by conditions

GoingRunsWinsSR£1
Heavy 1 1 100% +3.33
Good 1 1 100% +1.38
Good to Soft 1 0 0% −1.00

ClassRunsWinsSR£1
Class 2 1 1 100% +1.38
Class 1 1 0 0% −1.00

CourseRunsWinsSR£1
Nantes (FR) 1 1 100% +3.33
La Teste De Buch (FR) 1 1 100% +1.38
Mont-De-Marsan (FR) 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 OR Jockey SP
2026 · 3 runs
14 Oct 26+39d Nantes (FR) Grand Prix Anjou Bretagne - Fonds Europeen De L'elevage 1m · Heavy · 8 ran 1/8 8-13 96 Aurelien Lemaitre 100/30
05 Sep 26+41d La Teste De Buch (FR) Prix Paul Duboscq Class 2 · 1m · Good · 6 ran 1/6 8-13 96 Aurelien Lemaitre 11/8F
26 Jul 26 Mont-De-Marsan (FR) Prix Caviar Sturia - Grand Prix De La Teste Class 1 · 1m · Good To Soft · 6 ran 5/6 nk 9-1 96 Aurelien Lemaitre 5/2

Quick answers

How many races has Grandpa Cen won?
Grandpa Cen (IRE) won 2 of 3 archived starts in 2026, a strike rate of 66.7%. Placed 2 times in total (66.7% of starts).
Who trains Grandpa Cen?
Grandpa Cen (IRE) is trained by Patrik Olave Valdivielso, who saddled the horse on its most recent run on 14 October 2026.
Who is Grandpa Cen's sire?
Grandpa Cen (IRE) is by Uncle Mo (USA) out of Instant Reflex (USA), whose sire is Quality Road.
What is Grandpa Cen's official rating?
The most recent official rating on record is 96, from the run on 14 October 2026. That is also the highest on record.
What is Grandpa Cen's sire's record?
Uncle Mo (USA)'s progeny in our archive have won 16.1% of 118 runs since Jun 2017 (28 horses), Flat and jumps together.
Who are Grandpa Cen's siblings?
Out of Instant Reflex (USA), Grandpa Cen (IRE) has 1 other produce in our archive, 0 of them winners. As at Nov 2026.

Record shown from July 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.