| Yimou | Brighton,
27-Jun-23 |
| Yin And Yang | Townsville,
11-Mar-21 |
| Yin Nar | Bairnsdale,
11-May-14 |
| Yin Yang | San Isidro,
20-Apr-25 |
| YIN YANG HUO | |
| Yindu | Esperance Bay,
01-Mar-14 |
| Yindyamarra | Queanbeyan,
12-Oct-25 |
| Yingle Bells | Saratoga,
01-Sep-24 |
| Yingxiong | Sapporo,
30-Aug-25 |
| Yinzer | Keeneland,
09-Oct-25 |
| Yip Yip Kip | Remington Park,
09-Nov-23 |
| Yip Yip Yip | Pioneer Park,
01-Jun-24 |
| Yippee | Canterbury Park,
23-Jan-19 |
| Yippee | Southwell,
22-Oct-24 |
| Yippee Bean | Gatton,
19-Jan-25 |
| Yippee Ki Yay | Aintree,
03-Apr-25 |
| Yippee Ki Yay | Thistledown,
29-Aug-25 |
| Yippee Ki Yey | Los Alamitos Racecourse,
19-Oct-25 |
| Yippee Kiyay | Vaal,
28-Oct-25 |
| Yippyiaddy | Wangaratta,
17-Jan-11 |
| Yipssi Sayen | Hipodromo Chile,
09-May-25 |
| Yira | Dax,
11-Jun-24 |
| Yirrkala | Randwick,
08-Jun-24 |
| Yishay | Ipswich,
09-Apr-25 |
| Yiska | Royal Randwick,
01-Mar-25 |
| Yitai Synergy | Kensington,
05-Feb-20 |
| YITHION | |
| Yiu Cheung Marshal | Wangaratta,
24-Aug-24 |
| Yiu Yiu | Club Hipico Santiago,
01-Jul-23 |
| Yiyi | Newcastle,
12-Nov-22 |
| Yiyo Hit | Palermo,
27-Aug-23 |
| Ykikahobbsie | Worcester,
10-Jul-23 |
| Ylamaa | Mizusawa,
29-Jun-25 |
| Ylana | Gulfstream,
11-Aug-25 |
| Ylang Ylang | ParisLongchamp,
06-Oct-24 |
| Ylang Ylang | Mountaineer,
15-Aug-24 |
| Ylivoimainen | Woodbine,
01-Dec-24 |
| Yllico | Pau,
27-Dec-22 |
| Ylva | Curragh,
20-Aug-23 |
| Ym Flyin | Lone Star Park,
14-Sep-25 |
| Yma Sumac | Concepcion,
29-May-24 |
| Ynot A Hero | Horseshoe Indianapolis,
26-Sep-24 |
| Ynys Gored Goch | Townsville,
11-Oct-19 |
| Yo Adrian | Colonial Downs,
26-Jul-25 |
| Yo Baby | Golden Gate Fields,
05-Feb-24 |
| Yo Banana Boy | Saratoga,
10-Aug-25 |
| Yo Beauty | Happy Valley,
08-Mar-23 |
| Yo Daddy | Saratoga,
07-Jun-25 |
| Yo Dawg | Canterbury Park,
31-Aug-25 |
| Yo Hin | Sapporo,
06-Sep-25 |
| YO HO DIABLO | |
| Yo Ho Kirishima | Saga,
13-Oct-25 |
| Yo Le Creo | Club Hipico Santiago,
17-Dec-24 |
| Yo Lev | Eagle Farm,
01-Nov-25 |
| Yo Leven | Belmont At The Big A,
19-Sep-25 |
| Yo Lo Entiendo | Hipodromo Chile,
11-May-25 |
| Yo Nessroundonkern | Charles Town,
09-Feb-25 |
| Yo Puedo | Oaklawn Park,
20-Jan-25 |
| Yo Soy Roy | Remington Park,
10-Oct-25 |
| Yo Soy Yi | Club Hipico Santiago,
17-May-25 |