| Iza Shobu | Niigata,
26-Oct-25 |
| Izababe | Orange,
12-Apr-13 |
| Izabela's Girl | Kempsey,
09-Aug-14 |
| Izabella Fujin | Kokura,
02-Sep-23 |
| Izabellabella | Keeneland,
29-Apr-23 |
| Izablew | Muswellbrook,
01-Oct-12 |
| IZACHAMP | Sunshine Coast Cushion Track,
11-Nov-11 |
| Izademon | Belmont,
22-Aug-12 |
| Izagold | Wellington,
19-Jun-13 |
| Izaiir | Chateaubriant,
16-Jul-24 |
| Izakaya | Newbury,
24-Oct-25 |
| Izakaya | Valparaiso Sporting Club,
15-May-25 |
| Izakaya | La Teste De Buch,
03-Apr-25 |
| Izana Bere | Cagnes-sur-Mer,
20-Jan-24 |
| Izanami | Fairview,
17-Oct-25 |
| Izanami | Turf Paradise,
11-Jan-23 |
| Izapha | Scottsville,
29-Jan-24 |
| IZARANOS | Pakenham,
28-Feb-10 |
| Izarra Xuria | Reims,
22-Oct-23 |
| Izastep | Marseille-borely,
31-Oct-25 |
| Izatiz | Remington Park,
29-Aug-25 |
| Izatonareba | Niigata,
06-May-23 |
| Izayte | Worcester,
12-Sep-23 |
| Ize A Blast | Remington Park,
04-Oct-25 |
| Ize Baked | Sunland Park,
12-Feb-24 |
| Ize Fairdinkum | Mansfield,
08-Jan-23 |
| Ize Sharpie | Canterbury Park,
31-Jul-23 |
| Ize Smiling | Fair Grounds,
25-Feb-24 |
| Izeadistortedlady | Louisiana Downs,
07-Aug-23 |
| Izenashark | The Valley,
22-Feb-19 |
| Izenterisky | Windsor,
08-Sep-25 |
| Izeo | Clonmel,
12-May-23 |
| Izeondec | Fairmount Park,
01-Jun-25 |
| Izeonpoint | Louisiana Downs,
26-Sep-24 |
| Izeright | Zia Park,
12-Dec-23 |
| Izeste | Valparaiso Sporting Club,
08-May-25 |
| Izfallingdown | Newcastle,
09-May-24 |
| Izfor | Pinjarra Park,
11-Jan-15 |
| Izgor De Viette | Auteuil,
10-Sep-24 |
| Izhiestia | Fairview,
01-Mar-24 |
| Izibulo | Greyville,
01-Nov-25 |
| Izicolo | Pinjarra Scarpside,
02-May-24 |
| Izijal | Le Mont Saint Michel,
28-Jun-23 |
| Izino D'airy | Cheltenham,
13-Dec-24 |
| Izipizi | Wolverhampton,
25-Oct-24 |
| Izmit | Tampa Bay Downs,
29-Apr-24 |
| Iznik | Saint-Cloud,
27-Oct-24 |
| Izoard | San Isidro,
20-Jul-24 |
| Izoard Saint Fray | Amiens,
30-Oct-22 |
| Izola | Sandown Hillside,
03-Sep-25 |
| Izoom | Ballinrobe,
28-May-24 |
| Izora Barzat | Vincennes,
07-Nov-23 |
| Izu Jo Arthur | Kanazawa,
05-Aug-24 |
| Izu Jo Dream | Sonoda,
03-Nov-25 |
| Izu Jo Gomory | Nagoya,
10-Jul-25 |
| Izu Jo Hero | Sonoda,
11-Sep-25 |
| Izu Jo Melody | Saga,
02-Nov-24 |
| Izu Jo No Baton | Sapporo,
19-Aug-23 |
| Izu Jo No Hikari | Nagoya,
29-Oct-25 |
| Izu Jo No Kiseki | Hanshin,
02-Dec-23 |