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Horse profile

Thriller's Moon (GB)

4yo gelding (at last run, Oct 2021) · Last trainer Simon Whitaker · Last owner James Marshall Chris Marshall
by Mayson (GB) out of Rio's Rosanna (IRE) (Captain Rio)
15 runs · 9 courses · from Nov 2019
As at 28 Oct 2026 · KTB archive: GB, Ireland & France · 2005–present, updated daily
No run recorded since 25 Oct 2021 — 1,829 days ago. Our archive can't say whether the horse is still in training.
Last run Oct 2021 · 8th of 13 Last raced off OR 47
KTB Profile

Thriller's Moon (GB) is yet to win from 15 starts, though has placed 4 times. Best effort: 2nd of 11 at Ripon (Aug 2021).

Based on 15 archived runs · updated 28 Oct 2026
Official rating47↓ 3lb off peak
47 45–50

KTB Speed and Rating

KTB Speed

Best recent Speed 88 the best of the last 3 graded (A or B) runs · Newcastle (AW), 21 Sep 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. What this means →

Flat 15 figures · best 104A · median 87
GoingRunsBestMedianSince 28 Oct 2025
Standard (AW)691B88—
Good4104A79—
Soft397C78—
Good to Soft292A88—
DistanceRunsBestMedianSince 28 Oct 2025
6f – 7f9104A90—
1m2f – 1m4f388B87—
1m – 1m1f371A59—

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

KTB Rating

Best recent KTB Rating 75A the best of the last 3 rated runs · Ripon, 30 Aug 2021 Official rating 47 at the last run, 25 Oct 2021

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 15 figures · best 75A · median 60
GoingRunsBestMedianSince 28 Oct 2025
Standard (AW)673A57.5—
Good475A66—
Soft363A62—
Good to Soft269A56.5—
DistanceRunsBestMedianSince 28 Oct 2025
6f – 7f974A63—
1m2f – 1m4f375A55—
1m – 1m1f358A49—

KTB Rating v1 · batch 3 Oct 2026 · GB & Irish racing only · 15 figures from 15 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 is derived from in-running commentary, which our data provider does not supply for this horse's races.

Pedigree intelligence

Sire

Progeny in our archive have won 10.7% of 7,381 runs since Jan 2008 (442 horses).

Strongest at trips under 6f (all codes): 13.8% from 1,730. Weakest over 1m5f – 2m (all codes): 2.8% from 106.

GoingRunsWinsSRvs sireThis horse
Firm22627.3%+16.6—
Good to Firm1,02312111.8%+1.1—
Good1,37013910.1%−0.60 from 4
Good to Soft8069211.4%+0.70 from 2
Soft97211511.8%+1.10 from 3
Heavy3243410.5%−0.2—
Standard (AW)2,86428510%−0.70 from 6
Distance (all codes)RunsWinsSRvs sireThis horse
Under 6f1,73023813.8%+3.1—
6f – 7f3,91140010.2%−0.50 from 9
1m – 1m1f1,1461129.8%−0.90 from 3
1m2f – 1m4f452378.2%−2.50 from 3
1m5f – 2m10632.8%−7.9—
2m1f – 2m4f3013.3%−7.4—
2m5f – 3m6116.7%+6—

Flat and jumps together (all codes) · since Jan 2008 · as at 28 Oct 2026 · rows under 30 runs muted · win % is the measure, a record not a forecast

Dam
Rio's Rosanna (IRE) (Captain Rio)

3 siblings in the archive, 1 winner — best of them Tiberio Force (GB) (3 wins).

The wins came over 1m2f; the highest grade won is Class 6 (Tiberio Force (GB)).

ProduceRunsWinsWin tripsBest grade
Tiberio Force (GB)4931m2fClass 6
The Lakes (GB)70——
Jetpack Jimmy (GB)40——

Record by conditions

GoingRunsWinsSR£1
Standard (AW) 6 0 0% −6.00
Good 4 0 0% −4.00
Soft 3 0 0% −3.00
Good to Soft 2 0 0% −2.00

ClassRunsWinsSR£1
Class 6 11 0 0% −11.00
Class 5 3 0 0% −3.00
Class 4 1 0 0% −1.00

CourseRunsWinsSR£1
Newcastle (AW) 4 0 0% −4.00
Ripon 3 0 0% −3.00
Redcar 2 0 0% −2.00
Carlisle 1 0 0% −1.00
Catterick 1 0 0% −1.00
Wolverhampton (AW) 1 0 0% −1.00
Hamilton 1 0 0% −1.00
Lingfield 1 0 0% −1.00
Southwell (AW) 1 0 0% −1.00

DistanceRunsWinsSR£1
6f – 7f 9 0 0% −9.00
1m2f – 1m4f 3 0 0% −3.00
1m – 1m1f 3 0 0% −3.00

JockeyRunsWinsSR£1
Phil Dennis 8 0 0% −8.00
Connor Beasley 2 0 0% −2.00
William Carver 2 0 0% −2.00
Joe Fanning 1 0 0% −1.00
Saffie Osborne 1 0 0% −1.00
Robert Havlin 1 0 0% −1.00

HeadgearRunsWinsSR£1
Cheekpieces 8 0 0% −8.00
None 5 0 0% −5.00
Blinkers 2 0 0% −2.00

SeasonRunsWinsSR£1
2021 6 0 0% −6.00
2020 7 0 0% −7.00
2019 2 0 0% −2.00

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
2021 · 6 runs
25 Oct 21+34d Redcar Watch Racing TV In HD Selling Stakes Class 5 · 10f · Soft · 13 ran 8/13 1¾ 9-3 4754C54A Joe Fanning 5/1
21 Sep 21+22d Newcastle (AW) Cazoo Search Drive Smile Handicap (Div 2) Class 6 · 10f · Standard To Slow · 13 ran 9/13 nk 9-4 4788B55A Phil Dennis 9/2
30 Aug 21+10d Ripon Best Odds Guaranteed At ne-bet.com Handicap Class 6 · 10f · Good · 11 ran 2/11 ½ 8-13 4587A75A Connor Beasley 5/1
20 Aug 21+18d Newcastle (AW) Follow AtTheRaces On Twitter Handicap (Div 1) Class 6 · 7f · Standard To Slow · 14 ran 5/14 2½ 8-12 4688B68A Phil Dennis 15/2
02 Aug 21+26d Carlisle PC Abs Ahmed Memorial Race Handicap (Professional And Amateur Female Jockeys) (Div 2) Class 6 · 8f · Good · 10 ran 6/10 1¾ 9-13 4771A58A Saffie Osborne 8/1
07 Jul 21+246d Catterick Racing Again 14th July Handicap (Div 1) Class 6 · 7f · Soft · 14 ran 5/14 ½ 8-9 4797C63A Phil Dennis 28/1
2020 · 7 runs
03 Nov 20+18d Newcastle (AW) Bombardier 'March To Your Own Drum' Handicap Class 6 · 7f · Standard · 13 ran 3/13 ½ 8-13 4791B73A Phil Dennis 17/2
16 Oct 20+4d Redcar Best Flat Races Live On Racing TV Handicap (Div 1) Class 6 · 7f · Soft · 13 ran 8/13 1¼ 8-8 4978C62A Robert Havlin 10/1
12 Oct 20+22d Wolverhampton (AW) Grand Theatre Wolverhampton Handicap (Div 1) Class 6 · 7f · Standard To Slow · 10 ran 4/10 ¾ 8-3 4990A60A William Carver 17/2
20 Sep 20+18d Hamilton Fraser Tool Hire, Tool & Plant Specialists Handicap Class 6 · 6f · Good To Soft · 11 ran 7/11 2¼ 8-6 5092A44A Phil Dennis 11/4J
02 Sep 20+17d Lingfield Betway Apprentice Handicap (Div 2) Class 6 · 7f · Good · 12 ran 2/12 hd 8-5 45104A74A William Carver 9/2
16 Aug 20+39d Ripon William Hill Lengthen Yourodds Handicap Class 6 · 6f · Good To Soft · 16 ran 4/16 nk 8-9 4584C69A Connor Beasley 33/1
08 Jul 20+224d Ripon Free Tips Daily On Attheraces.com Maiden Stakes Class 5 · 8f · Good · 10 ran 7/10 7½ 9-5 —59C47C Phil Dennis 250/1
2019 · 2 runs
27 Nov 19+26d Southwell (AW) Ladbrokes 'Play 1-2-Free' On Football EBF Novice Stakes Class 5 · 7f · Standard · 14 ran 14/14 1¾ 9-5 —14C49C Phil Dennis 150/1
01 Nov 19 Newcastle (AW) Ladbrokes 'Play 1-2 Free' On Football Median Auction Maiden Stakes (Plus 10) Class 4 · 8f · Standard · 13 ran 13/13 2¾ 9-5 —34C49C Phil Dennis 50/1

Quick answers

How many races has Thriller's Moon won?
Thriller's Moon (GB) has yet to win, from 15 archived starts between 2019 and 2021. Placed 4 times in total (26.7% of starts).
Who trained Thriller's Moon?
Thriller's Moon (GB) was trained by Simon Whitaker on the most recent run on record, at Redcar on 25 October 2021.
Who is Thriller's Moon's sire?
Thriller's Moon (GB) is by Mayson (GB) out of Rio's Rosanna (IRE), whose sire is Captain Rio.
What is Thriller's Moon's official rating?
The most recent official rating on record is 47, from the run on 25 October 2021. The highest on record is 50.
What is Thriller's Moon's sire's record?
Mayson (GB)'s progeny in our archive have won 10.7% of 7,381 runs since Jan 2008 (442 horses), Flat and jumps together. Strongest at trips under 6f (all codes): 13.8% from 1,730. Weakest over 1m5f – 2m (all codes): 2.8% from 106.
Who are Thriller's Moon's siblings?
Out of Rio's Rosanna (IRE), Thriller's Moon (GB) has 3 other produce in our archive, 1 of them a winner. Most wins: Tiberio Force (GB) (3). Highest grade won: Class 6 (Tiberio Force (GB)). The wins came over 1m2f. As at Oct 2026.

Record shown from November 2019. 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.