Leading Broodmare Sires of 2018 Unrestricted SWs
(through 20 May 2018)
| Rank | Stallion | Sire | SWs |
| 1 | GALILEO | SADLER'S WELLS | 8 |
| PIVOTAL | POLAR FALCON | 8 | |
| SINGSPIEL | IN THE WINGS | 8 | |
| UNBRIDLED'S SONG | UNBRIDLED | 8 | |
| 5 | GRAND SLAM | GONE WEST | 6 |
| 6 | ANABAA | DANZIG | 5 |
| EMPIRE MAKER | UNBRIDLED | 5 | |
| FRENCH DEPUTY | DEPUTY MINISTER | 5 | |
| MORE THAN READY | SOUTHERN HALO | 5 | |
| SPEIGHTSTOWN | GONE WEST | 5 | |
| STORM CAT | STORM BIRD | 5 | |
| SUNDAY SILENCE | HALO | 5 | |