| Number of Mares Reported Bred to Thoroughbred Stallions in 2021 | |||||
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z | |||||
| Stallion | Mares Bred | State | |||
| Eagle | 24 | TX | |||
| Earhart Light | 1 | TX | |||
| Early Flyer | 8 | TX | |||
| Eastwood | 9 | PA | |||
| Easygoestiz | 1 | AR | |||
| Echo Town | 93 | KY | |||
| Eckelson | 2 | IN | |||
| Eclipticalspraline | 20 | MD | |||
| Editorial | 8 | MD | |||
| El Deal | 33 | LA | |||
| El Medwar | 3 | IL | |||
| El Mirage | 3 | AZ | |||
| El Suri | 3 | PR | |||
| Elijah's Song | 1 | TX | |||
| Elite Squadron | 3 | IN | |||
| Elnaawi | 22 | IN | |||
| Elusive Journey | 2 | OK | |||
| Embezzler | 16 | AR | |||
| Emperor Ofthe Nile | 1 | SD | |||
| Emperor Tiberius | 3 | PA | |||
| Empire Way | 5 | CA | |||
| En Hanse | 1 | KY | |||
| Encaustic | 7 | NY | |||
| Engine | 5 | OH | |||
| English Channel | 57 | KY | |||
| Enticed | 86 | KY | |||
| Ents Dream | 1 | LA | |||
| Eslin | 4 | WY | |||
| Estratega | 5 | PR | |||
| Ethical | 6 | OK | |||
| Ethnic Dance | 10 | CA | |||
| Euroears | 11 | OK | |||
| Europe | 1 | IN | |||
| Event Driven | 12 | OH | |||
| Exaggerator | 19 | KY | |||
| Excalibur Fox | 3 | AB | |||
| Excaper | 7 | OK | |||
| Exhi | 7 | AR | |||
| Expect a Lot | 3 | TX | |||
| Eye of the Leopard | 16 | MN | |||
| Ez Effort | 26 | AZ | |||