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Horse profile

Guessing (USA)

3yo filly (at last run, Sep 2011) · Last trainer A P O'Brien · Last owner Mrs David Nagle
by Kingmambo (USA) out of Imagine (IRE) (Sadler's Wells)
1 run · 1 course · from Sep 2011
As at 21 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 25 Sep 2011 — 5,505 days ago. Our archive can't say whether the horse is still in training.
Last run Sep 2011 · 10th of 24
KTB Profile

Lightly raced, with 1 archived start in Sep 2011 as a 3yo filly. Finished 10 of 24 at Curragh last time. By Kingmambo (USA), whose progeny in our archive have won 14.5% of 1,093 runs since Jan 2008.

Based on 1 archived run · updated 21 Oct 2026

Progeny in our archive

Produce record

As a dam, Guessing (USA) has 3 produce in the archive, 2 winners — most wins Indication Spirit (IRE) (3 wins).

The wins came over 5f–1m2f; the highest grade won is Class 5 (Indication Spirit (IRE)).

ProduceRunsWinsWin tripsBest grade
Indication Spirit (IRE)535fClass 5
Invincible Soldier (IRE)1721m1½f–1m2fClass 6
Sayedaati Saadati (IRE)140——

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

Best recent KTB Rating 55C the best of the last 1 rated run · Curragh, 25 Sep 2011

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 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 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
Kingmambo (USA)

Progeny in our archive have won 14.5% of 1,093 runs since Jan 2008 (137 horses).

Weakest on soft going: 10.9% from 138. Strongest over 1m – 1m1f (all codes): 18.1% from 243.

GoingRunsWinsSRvs sireThis horse
Firm19631.6%+17.1—
Good to Firm2363715.7%+1.2—
Good3264814.7%+0.2—
Good to Soft1461812.3%−2.2—
Soft1381510.9%−3.6—
Heavy52815.4%+0.90 from 1
Standard (AW)1762614.8%+0.3—
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f10110%−4.5—
6f – 7f1502114%−0.5—
1m – 1m1f2434418.1%+3.6—
1m2f – 1m4f3725715.3%+0.80 from 1
1m5f – 2m1552214.2%−0.3—
2m1f – 2m4f8478.3%−6.2—
2m5f – 3m6557.7%−6.8—
Over 3m1417.1%−7.4—

Flat and jumps together (all codes) · since Jan 2008 · as at 21 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Imagine (IRE) (Sadler's Wells)

11 siblings in the archive, 11 winners — best of them Horatio Nelson (IRE) (4 wins).

The wins came over 6f–1m2f; the highest grade won is Group 1 (Horatio Nelson (IRE)).

ProduceRunsWinsWin tripsBest grade
Horatio Nelson (IRE)747fGroup 1
Viscount Nelson (USA)1237½f–1m2fListed
Van Gogh (USA)1127f–1mGroup 1
Kitty Matcham (IRE)1026f–7fGroup 2
General Macarthur (USA)1527f–1m—
Red Rock Canyon (IRE)2611m2f—
Point Piper (USA)511m—
Adeste Fideles (USA)816f—
The Algarve (USA)811m½f—
Mona Lisa's Smile (USA)1211m—
Assagher (USA)311mClass 5

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

Form

DateCourseRace PosBtn Wgt KTB Jockey SP
25 Sep 11 Curragh Free Admission Curragh Races 9th October Maiden 10f · Heavy · 24 ran 10/24 2½ 9-0 55C Seamie Heffernan 6/1

Quick answers

How many races has Guessing (USA) won?
Guessing (USA) has yet to win, from 1 archived start in 2011.
Who trained Guessing (USA)?
Guessing (USA) was trained by A P O'Brien on the most recent run on record, at Curragh on 25 September 2011.
Who is Guessing (USA)'s sire?
Guessing (USA) is by Kingmambo (USA) out of Imagine (IRE), whose sire is Sadler's Wells.
What is Guessing (USA)'s sire's record?
Kingmambo (USA)'s progeny in our archive have won 14.5% of 1,093 runs since Jan 2008 (137 horses), Flat and jumps together. Weakest on soft going: 10.9% from 138. Strongest over 1m – 1m1f (all codes): 18.1% from 243.
Who are Guessing (USA)'s siblings?
Out of Imagine (IRE), Guessing (USA) has 11 other produce in our archive, 11 of them winners. Most wins: Horatio Nelson (IRE) (4). Highest grade won: Group 1 (Horatio Nelson (IRE)). The wins came over 6f–1m2f. As at Oct 2026.
Has Guessing (USA) produced winners?
As a dam, Guessing (USA) has 3 produce in our archive, 2 of them winners. Most wins: Indication Spirit (IRE) (3). Highest grade won: Class 5 (Indication Spirit (IRE)). The wins came over 5f–1m2f. As at Oct 2026.

Record shown from September 2011. 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.