| Icatu (GER) 2019 | Soldier Hollow (GB) 2000 | In The Wings (GB) 1986 | Sadler's Wells (USA) 1981 |
| High Hawk (IRE) 1980 | |||
| Island Race (GB) 1995 | Common Grounds (GB) 1985 | ||
| Lake Isle (IRE) 1989 | |||
| Icici (GER) 2012 | Shirocco (GER) 2001 | Monsun (GER) 1990 | |
| So Sedulous (USA) 1991 | |||
| Ioannina (GB) 2003 | Rainbow Quest (USA) 1981 | ||
| Iora (GER) 1996 |