Puerto Rico
Puerto Rico is a three-year-old with one of those racing records that tells the story of a horse still finding its level. With just one win from nine races, you might glance past him—but that win matters. He took a top-tier race at Doncaster in September 2025, his first career victory, and it came at the kind of track and distance where he clearly thrives. Over seven furlongs to a mile, he has won one of three races, a 33 percent win rate that stands out against his overall 11 percent across all distances.Based on TrackLab's analysis
Owner
Mrs John Magnier & Michael Tabor & Derrick Smith
📊 Key numbers
Career totals for this horse
🔍 Full analysis
Our model's view, based on this horse's career and recent runs
The horse has had recent struggles. His last six races show mostly lower placings, with only a second place finish breaking up a stretch where he failed to trouble the judge. A sixth place finish just a day ago suggests he is hunting for form, though he remains active and still racing. That long gap between his September victory and his current runs—nearly a year—hints at the fragility that sometimes defines racehorses. Yet his trainer, Aidan O'Brien, one of Britain and Ireland's finest, sees something worth persisting with. O'Brien's Cashel yard has already sent out 125 winners this season, so his faith in Puerto Rico carries weight.
What O'Brien has noted publicly is revealing: the horse improves when given room to breathe at longer distances, handles soft or muddy ground without complaint, and possesses a relaxed temperament that sometimes works against him in a race. He is described as "classy" and a "real miler," language that suggests O'Brien believes Puerto Rico has a ceiling well above where his record currently sits. The trainer has pointed toward targets like the Guineas, a race for top three-year-olds, indicating that this is not a horse written off but one in need of the right opportunity and conditions to prove his quality.
⚡ 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 6 starts (17%)
✔ Well suited by 7f – 1m distances: 33% win rate
⚠ What to watch out for
⚠ Struggles on RH Galloping tracks: 0 wins from 5 starts
🎯 Where this horse runs best
Results split by ground, distance, race level and track shape
🌧 Ground
Good (a little give)
Loves
Good to firm (fairly firm)
Unknown
Good to soft (some give)
Unknown
🏟 Track shape
Left-handed, long straights
Unknown
Right-handed, hilly
Unknown
Right-handed, long straights
Avoids
📅 Recent runs
The last 10 races, most recent first
22 Aug
6th
York
7f – 1m · Good_To_Soft · 14 runners
29 Jul
11th
Goodwood
1m1f – 1m2f · Good_To_Firm · 12 runners
16 Jun
6th
Ascot
7f – 1m · Good_To_Firm · 6 runners
13 Sep
🏆 Won
Doncaster
7f – 1m · Good · 5 runners
9 Aug
4th
The Curragh
5f – 6½f · Good · 6 runners
31 Jul
2nd
Goodwood
5f – 6½f · Good · 9 runners
19 Jul
2nd
The Curragh
5f – 6½f · Good · 4 runners
27 Jun
2nd
The Curragh
5f – 6½f · Good · 11 runners
4 Jun
4th
The Curragh
5f – 6½f · Good · 14 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 |
| The Curragh Galloping |
4 |
2 seconds, 2 other |
9 Aug |
0% |
| Goodwood Undulating |
2 |
1 second, 1 other |
29 Jul |
0% |
| Doncaster Galloping |
1 |
1 win |
13 Sep |
100% |
| Ascot Galloping |
1 |
1 other |
16 Jun |
0% |
| York Galloping |
1 |
1 other |
22 Aug |
0% |