2021 Graded Racing Sire statistics
Results for offspring of sire Rio Quattro - Includes races up to and including 21/05/22
Click on any track to view details for offspring at that track only, or Click Here to return to full listing
| Track | Runners | Winners | Win rate |
| CentralPark | 83 | 14 | 16.86 |
| Crayford | 19 | 4 | 21.05 |
| Doncaster | 185 | 46 | 24.86 |
| Harlow | 101 | 18 | 17.82 |
| Henlow | 118 | 17 | 14.40 |
| Hove | 116 | 20 | 17.24 |
| Kinsley | 18 | 3 | 16.66 |
| Monmore | 36 | 8 | 22.22 |
| Newcastle | 23 | 4 | 17.39 |
| Nottingham | 13 | 3 | 23.07 |
| PelawGrange | 28 | 7 | 25 |
| PerryBarr | 60 | 8 | 13.33 |
| Romford | 9 | 1 | 11.11 |
| Sheffield | 35 | 6 | 17.14 |
| Sunderland | 24 | 3 | 12.5 |
| Swindon | 15 | 2 | 13.33 |
| Towcester | 39 | 8 | 20.51 |
| Yarmouth | 94 | 12 | 12.76 |
| OVERALL | 1016 | 184 | 18.11 |