Isaac Newton
Isaac Newton has won 3 of his 9 races—a win rate that puts him among the more successful three-year-olds in training, though his recent form suggests he is still finding his way at the highest level. Trained by
A P O'Brien at Cashel, he broke through at the top in the summer, taking a Class 2 race at Goodwood on 2 August 2025, just days after his maiden breakthrough at the same track. That first win unlocked something in him: he has taken 2 of his last 6 races, including a victory at Leopardstown five weeks ago, and remains active on the track.
Based on TrackLab's analysis
Owner
Derrick Smithmrs John Magniermichael Taborwesterberg
📊 Key numbers
Career totals for this horse
🔍 Full analysis
Our model's view, based on this horse's career and recent runs
His record in France earlier in his career—fourth and fifth placings—taught him lessons in a tough school, and O'Brien believes those races undersold his ability. The trainer sees him as a horse built for distance, most likely to excel over a mile and a half or a shade further, and harbours ambitions that could extend to Royal Ascot depending on how he develops. At three years old and still learning his trade at the highest level, Isaac Newton has the foundation of a useful racehorse and the backing of one of racing's most successful yards, which has already sent out 125 winners this season alone. Whether he kicks on from here or remains a consistent mid-tier performer will become clear over the next few months.
🎯 Where this horse runs best
Results split by ground, distance, race level and track shape
🌧 Ground
Good to soft (some give)
Unknown
Good to firm (fairly firm)
Unknown
🏅 Race level
Class 2 (high-level)
Unknown
🏟 Track shape
Left-handed, long straights
Loves
Right-handed, hilly
Unknown
Left-handed, tight turns
Unknown
Right-handed, long straights
Avoids
📅 Recent runs
The last 10 races, most recent first
12 Sep
4th
Leopardstown
1m1f – 1m2f · Good · 10 runners
6 Aug
🏆 Won
Leopardstown
1m1f – 1m2f · Good · 9 runners
16 Jul
3rd
Leopardstown
1m1f – 1m2f · Good · 6 runners
28 Jun
6th
The Curragh
1m3f – 1m4f · Good · 8 runners
7 Jun
🏆 Won
Navan
1m1f – 1m2f · Good · 12 runners
9 May
5th
Lingfield Park
1m3f – 1m4f · Good_To_Firm · 6 runners
15 Apr
4th
Newmarket
1m1f – 1m2f · Good · 7 runners
2 Aug
🏆 Won
Goodwood
7f – 1m · Good_To_Soft · 14 runners
19 Jul
2nd
The Curragh
7f – 1m · Good · 15 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 |
| Leopardstown Galloping |
3 |
1 win, 1 third, 1 other |
12 Sep |
33.3% |
| The Curragh Galloping |
2 |
1 second, 1 other |
28 Jun |
0% |
| Navan Galloping |
1 |
1 win |
7 Jun |
100% |
| Goodwood Undulating |
1 |
1 win |
2 Aug |
100% |
| Lingfield Park Sharp |
1 |
1 other |
9 May |
0% |
| Newmarket Galloping |
1 |
1 other |
15 Apr |
0% |