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Moonstone Boy

There is a horse out there who genuinely loves wet ground, and right now the autumn rain is falling. Moonstone Boy is a five-year-old with four wins and 13 places from 31 races — a win rate of roughly 1 in every 8 races — and after a frustrating summer on dry ground, his trainer thinks the best is still to come.Based on TrackLab's AI analysis
Quick Facts
Age
5 years old
Sex
Gelding
Colour
Bay
Father
Calyx
Mother
Star Fire
Owner
Mrs Ros Marriott
Rating
73

📊 Key Numbers

Career statistics for this horse
31
Career races
4
Wins
12.9%
Win rate
avg ~10%
41.9%
Place rate (top 3)
avg ~30%
1 days
Since last race

🔍 Full Analysis

TrackLab's AI-generated assessment based on career data and recent form
TrackLab's Detailed Breakdown
Auto-Generated

Jennie Candlish, who operates out of Basford in Staffordshire and has sent out 60 winners already this season, is unusually candid about what holds Moonstone Boy back: the weather. She has said plainly that the dry conditions put his season on hold, and that the autumn rain should pay dividends. She has her eye on Ayr as a target. That kind of trainer confidence, backed by a yard clearly in fine form, is worth paying attention to.

What Moonstone Boy does particularly well is sprint. Over the shortest distances — under five furlongs — he has won 1 from 3 races, a 33% win rate that stands well above his overall figures. Speed is his calling card, as jockey Paul Mulrennan noted after an early win, describing him as a horse with "a lot of speed." His record at Hamilton Park also stands out: 2 wins from 6 races there, meaning he has won a third of his visits to that course. For a horse with a modest overall record, that kind of course affinity is a genuine edge.

His most recent win came at Carlisle on 29 May 2025, and the six races since then have not produced another victory — finishing eighth, seventh, seventh, fourth, tenth, and fifth in that sequence. That is a lean run, but context matters here. If Candlish is right that firm, dry ground has been the problem, those results may tell us less about ability and more about conditions. He raced just yesterday, so he is bang in form and busy.

Regular jockey Andrew Mullen has ridden him 12 times for a single win together — roughly 1 in every 12 rides — which is modest. But Mullen clearly knows the horse well, and with wet ground forecast and a trainer pointing him toward Ayr, Moonstone Boy looks like exactly the kind of horse who could surprise people before the season is out.

Strengths & Risks

What the data says works for and against this horse
✓ What works in their favour
Well suited by Sprint (< 5f) distances: 33% win rate
⚠ What to watch out for
Poor record on good ground: 0 wins from 5 starts
Yet to win at Newcastle in 5 attempts
Struggles on LH Galloping tracks: 1 wins from 17 starts

🎯 Where This Horse Thrives

Performance broken down by ground, distance, class, and track type
🌧 Ground Conditions
Good to soft (some give)
Standard (all-weather)
Ok
Soft (muddy)
Ok
Heavy (very wet)
Unknown
Standard to slow (all-weather)
Unknown
Good (firm-ish)
Avoids
📏 Race Distance
Sprint (< 5F)
Loves
5F – 6½F
Ok
🏅 Competition Level
Class 2 (high-level)
Avoids
Class 3 (mid-level)
Ok
Class 4 (standard)
Class 5 (entry-level)
Unknown
🏟 Track Shape
Right-handed, tight turns
Loves
Left-handed, tight
Unknown
Right-handed, hilly
Unknown
Right-handed, long straights
Unknown
Left-handed, long straights
Avoids

📅 Recent Runs

The last 10 races, most recent first
10 Apr
8th
Thirsk
5f – 6½f · Good · 16 runners
5 Mar
7th
Newcastle
5f – 6½f · Standard
16 Feb
7th
Wolverhampton
5f – 6½f · Standard · 8 runners
17 Jan
4th
Southwell
Sprint (< 5f) · Standard · 6 runners
10 Oct
10th
York
5f – 6½f · Good · 20 runners
29 Sep
5th
Hamilton Park
5f – 6½f · Soft · 10 runners
19 Sep
14th
Ayr
5f – 6½f · Soft · 25 runners
14 Sep
9th
Doncaster
5f – 6½f · Soft · 18 runners
6 Sep
10th
Ascot
5f – 6½f · Good_To_Soft · 16 runners
18 Jul
11th
Hamilton Park
5f – 6½f · Good · 15 runners

🏇 Jockey Partnerships

Every jockey who has ridden this horse, sorted by rides together
8.3%
Win rate
1/12
Won / Rode
Mohammed Tabti
11.1%
Win rate
1/9
Won / Rode
33.3%
Win rate
1/3
Won / Rode
Shay Farmer
100%
Win rate
1/1
Won / Rode
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode
0%
Win rate
0/1
Won / Rode

🏟 Track Record

Win rate at each course this horse has visited
CourseRacesResultsLast visitedWin rate
Hamilton Park
Sharp
6 2 wins, 1 second, 1 third, 2 other 29 Sep 33.3%
Newcastle
Galloping
5 1 second, 4 other 5 Mar 0%
Musselburgh
Sharp
4 2 seconds, 2 thirds 19 Apr 0%
Southwell
Galloping
3 1 win, 1 second, 1 other 17 Jan 33.3%
York
Galloping
2 2 other 10 Oct 0%
Thirsk
Galloping
2 1 second, 1 other 10 Apr 0%
Haydock Park
Galloping
2 2 other 18 Oct 0%
Chester
Tight
2 2 other 14 Jun 0%
Carlisle
Undulating
1 1 win 29 May 100%
Ascot
Galloping
1 1 other 6 Sep 0%
Doncaster
Galloping
1 1 other 14 Sep 0%
Ayr
Galloping
1 1 other 19 Sep 0%
Wolverhampton
Galloping
1 1 other 16 Feb 0%