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Horse profile

Sumaffair (USA)

2yo filly (at last run, Dec 2022) · Last trainer Joseph Patrick O'Brien · Last owner Rocky Mountain Partnership
by Summer Front (USA) out of Love Affair (USA) (Malibu Moon)
1 run · 1 course · from Dec 2022
As at 5 Nov 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 16 Dec 2022 — 1,420 days ago. Our archive can't say whether the horse is still in training.
Last run Dec 2022 · 3rd of 10
KTB Profile

Sumaffair is a lightly raced filly by Summer Front out of a Malibu Moon mare. She made her only start in a 6f-7f maiden on standard going at Dundalk in Dec 2022, finishing third of 10. The Joseph Patrick O'Brien-trained filly was aged 2 at her last run in Dec 2022.

Based on 1 archived run · updated 5 Nov 2026

KTB Speed and Rating

KTB Speed

Best recent Speed 76 the best of the last 1 graded (A or B) run · Dundalk (AW), 16 Dec 2022

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 3 Oct 2026 · a record, not a forecast

KTB Rating

Best recent KTB Rating 91A the best of the last 1 rated run · Dundalk (AW), 16 Dec 2022

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 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
Summer Front (USA)

Progeny in our archive have won 14.5% of 55 runs since Jul 2019 (8 horses).

GoingRunsWinsSRvs sireThis horse
Good to Firm8112.5%−2—
Good9111.1%−3.4—
Good to Soft600%−14.5—
Soft700%−14.5—
Heavy3133.3%+18.8—
Standard (AW)22522.7%+8.20 from 1
Distance (all codes)RunsWinsSRvs sireThis horse
6f – 7f9222.2%+7.70 from 1
1m – 1m1f15213.3%−1.2—
1m2f – 1m4f29310.3%−4.2—
1m5f – 2m2150%+35.5—

Flat and jumps together (all codes) · since Jul 2019 · as at 5 Nov 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Love Affair (USA) (Malibu Moon)

No other produce in our archive. It holds racing in Great Britain, Ireland and France from 2005, so siblings racing elsewhere won’t appear here.

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

Form

DateCourseRace PosBtn Wgt SpdKTB Jockey SP
2022 · 1 run
16 Dec 22 Dundalk (AW) William Hill Lengthen Your Odds Maiden 6f · Standard · 10 ran 3/10 hd 9-2 76A91A Declan McDonogh 3/1

Quick answers

How many races has Sumaffair won?
Sumaffair (USA) has yet to win, from 1 archived start in 2022. Placed 1 time in total (100% of starts).
Who trained Sumaffair?
Sumaffair (USA) was trained by Joseph Patrick O'Brien on the most recent run on record, at Dundalk (AW) on 16 December 2022.
Who is Sumaffair's sire?
Sumaffair (USA) is by Summer Front (USA) out of Love Affair (USA), whose sire is Malibu Moon.
What is Sumaffair's sire's record?
Summer Front (USA)'s progeny in our archive have won 14.5% of 55 runs since Jul 2019 (8 horses), Flat and jumps together.

Record shown from December 2022. 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.