The number of registered Thoroughbreds for the 4th generation sires on the top sire line pedigree for the registered foals of 2020.
| Sire Name | Registered Thoroughbreds |
|---|---|
| Mr. Prospector | 3197 |
| Seattle Slew | 1464 |
| Northern Dancer | 1407 |
| Storm Bird | 1251 |
| Storm Cat | 1165 |
| Fappiano | 1123 |
| A.P. Indy | 1019 |
| Sadler's Wells | 835 |
| Raise a Native | 830 |
| Bold Reasoning | 738 |
| Unbridled | 626 |
| Cryptoclearance | 533 |
| Hennessy | 510 |
| Gone West | 485 |
| In Excess (IRE) | 445 |
| Siberian Express | 438 |
| Harlan | 353 |
| Hail to Reason | 309 |
| Vice Regent | 290 |
| Forty Niner | 269 |
| Relaunch | 256 |
| Nearctic | 252 |
| Deputy Minister | 164 |
| Machiavellian | 154 |
| Wavering Monarch | 151 |
| Danzig | 125 |
| Halo | 122 |
| Majestic Light | 103 |
| Dixieland Band | 93 |
| Roberto | 92 |
| Raja Baba | 87 |
| Tale of the Cat | 85 |
| Ride the Rails | 77 |
| In Reality | 74 |
| Blushing Groom (FR) | 65 |
| Great Above | 57 |
| Caro (IRE) | 52 |
| El Prado (IRE) | 38 |
| Minnesota Mac | 38 |
| Quiet American | 32 |
| Afleet | 30 |
| Kris S. | 28 |
| Native Dancer | 27 |
| Icecapade | 24 |
| His Majesty | 21 |
| Runaway Groom | 21 |
| Buckpasser | 18 |
| Cormorant | 18 |
| Damascus | 16 |
| Fortino II (FR) | 16 |
| Valid Appeal | 16 |
| Battle Joined | 15 |
| Red God | 14 |
| Cee's Tizzy | 13 |
| Boldnesian | 12 |
| Gulch | 12 |
| Skywalker | 12 |
| Ack Ack | 11 |
| Buckaroo | 11 |
| Intentionally | 11 |
| Sword Dancer | 11 |
| Private Account | 10 |
| Southern Halo | 10 |
| Bailjumper | 8 |
| Literat (GER) | 8 |
| Jack Sprat | 6 |
| Marquetry | 6 |
| Conquistador Cielo | 5 |
| Super Concorde | 5 |
| Bold Ruler | 4 |
| Gold Apollo | 4 |
| Milkie | 4 |
| Milkie's Desire | 4 |
| Mill Reef | 4 |
| Nureyev | 4 |
| Pulpit | 4 |
| Best Turn | 3 |
| Foolish Pleasure | 3 |
| Green Desert | 3 |
| Sonny's Solo Halo | 3 |
| Dance in Time | 2 |
| Issue of Gold | 2 |
| Lorenzaccio | 2 |
| Majestic Prince | 2 |
| Miswaki | 2 |
| Mt. Livermore | 2 |
| Native Royalty | 2 |
| Nijinsky II | 2 |
| Relic | 2 |
| Seeking the Gold | 2 |
| Sovereign Dancer | 2 |
| Turn-to | 2 |
| Cape Town | 1 |
| Clever Trick | 1 |
| Cozzene | 1 |
| For The Moment | 1 |
| General (FR) | 1 |
| Glitter Please | 1 |
| Hold Your Peace | 1 |
| Johannesburg | 1 |
| Kingmambo | 1 |
| Lord At War (ARG) | 1 |
| Never Bend | 1 |
| Niniski | 1 |
| Northern Afleet | 1 |
| Tri Jet | 1 |
Source: The Jockey Club
Current through 4/29/2024