Circuit Breaker
Circuit Breaker is a horse caught between promise and inconsistency, a 6-year-old with real potential on the right day but frustratingly unreliable. His record reads modestly — three wins from 25 races, a 12 per cent win rate — but the story behind those numbers is more interesting than the bare statistics suggest. He is a course specialist at Kempton Park, where he has won two of his three races, and those victories hint at a horse that thrives when conditions align. His last win came on the all-weather track at Kempton in October 2024, in a modest four-runner race, but the trainer noted afterwards that Circuit Breaker jumped well and was expected to improve. He is an out-and-out stayer, the kind of horse built for grinding races over distance, and has shown his best form in Class 4 races, winning at a 22 per cent rate (2 wins from 9) when pitched at that level.Based on TrackLab's analysis
Trainer
Jonjo & A.J. O'Neill
📊 Key numbers
Career totals for this horse
🔍 Full analysis
Our model's view, based on this horse's career and recent runs
What holds him back is consistency. His form over his last six races reads 3-4-4-6-3-6 — a middling sequence with placings but no wins, suggesting he is competitive but not winning races. He has not scored in his last six outings despite being active just yesterday, which indicates either a loss of form or that the right race simply has not come along. Notably, jockey Cieren Fallon, his most regular partner, has yet to register a win aboard him in five attempts together. The trainer, based at Cheltenham, has acknowledged that Circuit Breaker wants soft or muddy ground, a detail that matters enormously — when the surface suits him and he gets a race to his liking, he can be effective, but he is not a horse to rely on in all conditions. For now, he remains a capable but unpredictable competitor, a horse that will have his admirers but whose best days may belong to the spring.
⚡ Strengths and risks
What helps this horse and what to watch out for
✓ What works in their favour
✔ Excellent record on good ground: 1 wins from 4 starts (25%)
⚠ What to watch out for
⚠ Poor record on standard ground: 0 wins from 9 starts
⚠ Struggles on LH Galloping tracks: 0 wins from 12 starts
🎯 Where this horse runs best
Results split by ground, distance, race level and track shape
🌧 Ground
Good (a little give)
Loves
Good to soft (some give)
Unknown
Standard to slow (all-weather)
Unknown
Good to firm (fairly firm)
Unknown
Standard (all-weather)
Avoids
🏅 Race level
Class 2 (high-level)
Avoids
Class 3 (mid-level)
Avoids
Class 5 (entry-level)
Loves
🏟 Track shape
Right-handed, long straights
Loves
Right-handed, tight turns
Loves
Right-handed, hilly
Unknown
Left-handed, tight turns
Unknown
Left-handed, long straights
Avoids
📅 Recent runs
The last 10 races, most recent first
25 Sep
3rd
Haydock Park
1m6f – 2m · Soft · 14 runners
18 Aug
4th
Lingfield Park
1m6f – 2m · Standard · 8 runners
15 Jun
4th
Carlisle
1m6f – 2m · Good · 14 runners
8 May
6th
Ascot
1m6f – 2m · Good · 13 runners
3 Apr
3rd
Lingfield Park
1m6f – 2m · Standard · 14 runners
3 Mar
6th
Wolverhampton
1m6f – 2m · Standard
1 Feb
6th
Market Rasen
Long Distance (2m+) · Soft · 8 runners
6 Jan
2nd
Wolverhampton
Long Distance (2m+) · Standard · 6 runners
30 Dec
2nd
Wolverhampton
1m6f – 2m · Standard · 8 runners
11 Oct
9th
York
Long Distance (2m+) · Good · 17 runners
🏇 Jockeys
Every jockey who has ridden this horse, most rides first
🏟 Course record
Win rate at each course this horse has visited
| Course | Races | Results | Last run | Win rate |
| Wolverhampton Galloping |
4 |
2 seconds, 2 other |
3 Mar |
0% |
| Kempton Park Galloping |
3 |
2 wins, 1 third |
20 Oct |
66.7% |
| Haydock Park Galloping |
3 |
1 second, 2 thirds |
25 Sep |
0% |
| Southwell Galloping |
2 |
1 third, 1 other |
28 Mar |
0% |
| Ascot Galloping |
2 |
2 other |
8 May |
0% |
| Lingfield Park Sharp |
2 |
1 third, 1 other |
18 Aug |
0% |
| Windsor Sharp |
1 |
1 win |
8 May |
100% |
| Market Rasen Sharp |
1 |
1 other |
1 Feb |
0% |
| Hamilton Park Sharp |
1 |
1 other |
15 Jul |
0% |
| York Galloping |
1 |
1 other |
11 Oct |
0% |
| Newcastle Galloping |
1 |
1 other |
18 Apr |
0% |
| Carlisle Undulating |
1 |
1 other |
15 Jun |
0% |
| Musselburgh Sharp |
1 |
1 other |
2 Feb |
0% |
| Doncaster Galloping |
1 |
1 third |
2 Jun |
0% |
| Salisbury Undulating |
1 |
1 other |
16 May |
0% |