| William Campbell | Delaware Park
06-Jul-25,
Formal Order |
| William Cowans | Churchill Downs
12-Jun-26,
Maiora |
| William Cronin | Clonmel
22-Mar-23,
Grace Shelby |
| William D. Cowans | Churchill Downs
15-Jun-26,
Les Is Best |
| William Deaton | Gulfstream
14-Jul-24,
Dudefoolingdarling |
| William Dowling | Penn National
19-Jun-26,
Roberta |
| William Downing | Delaware Park
21-Jun-26,
Specialagentjonson |
| William Duvall | Turfway Park
25-Jan-25,
Floris |
| William E. Deaton | Gulfstream
15-Jun-26,
Gallant Runner |
| William E. Duvall | Churchill Downs
18-Jun-26,
B D'S Angel |
| William E. Gallagher | Turfway Park
22-Dec-25,
Flash The Magic |
| William E. March | Tampa Bay Downs
29-Jan-26,
Protest |
| William E. Morey | Horseshoe Indianapolis
23-Jun-26,
R Bee Gee |
| William E. Straughn | Charles Town
06-Jun-26,
One Candy Castle |
| William Earl Atkins | Laurel Park
31-May-26,
Tiz No Clown |
| William Edwards | Turfway Park
27-Dec-24,
Baytown Kitty Cat |
| William Fires | Oaklawn Park
03-May-25,
Ryno Wrecker |
| William G Witherow | Mountaineer
15-Jun-26,
Bank Buster |
| William G. Wofford | Horseshoe Indianapolis
05-Jun-26,
Run Forrest Run |
| William Gallagher | Churchill Downs
16-May-26,
Weekend Reveille |
| William Godecke | Pinjarra Park
26-Dec-13,
March Along |
| William Gowan | Mahoning Valley
26-Jan-25,
Territoriality |
| William Grainger | Colonial Downs
14-Sep-25,
Power Dance |
| William H. Bartlett | Finger Lakes
23-Jun-26,
Salty Ryan |
| William H. Fires | Oaklawn Park
02-May-26,
House Trick |
| William Haggas | Wetherby
26-Apr-26,
Oathbound |
| William Haggas | |
| William Harris | Turf Paradise
03-Jan-25,
Western Reserve |
| William Harvey | Down Royal
20-Jun-26,
Blues Emperor |
| William Helmbrecht | Turfway Park
05-Jan-25,
Centrifugal Force |
| William Hogan | Delaware Park
21-Sep-24,
Dadashev |
| William Howard | Mountaineer
16-Jun-25,
Sharp Life |
| William I. Mott | |
| William J Hogan Jr. | Philadelphia Park
21-Aug-24,
Bella Maria |
| William J Williams | Rockhampton Sand Track
17-Dec-09,
ROCK OF MUFASA |
| William Jones | Charles Town
09-Dec-23,
Dearest M. A. |
| William Kropp | Ipswich
20-Jun-26,
Prince Levi |
| William L. Aylor, Jr. | Charles Town
29-May-26,
Super Banker |
| William Lewis | Charles Town
21-Sep-24,
Gator Twenty Five |
| William Lewthwaite | Ascot
16-Dec-23,
Long Weekend |
| William Macvittie | |
| William March | Tampa Bay Downs
01-May-25,
Well Connected |
| William Martin | Oaklawn Park
04-May-25,
Getty's Revenge |
| William Mccall | |
| William McDonald | Mountaineer
26-May-26,
Tappin Royalty |
| William McLeod | Rockhampton
01-Mar-12,
Razon De Jeu |
| William McMahon | Fort Erie
10-Sep-24,
Great Go Go |
| William Meister | Delaware Park
23-May-25,
Never More Valor |
| William Melvin | Gladstone
23-Oct-21,
Stumped |
| William Morey | Turfway Park
19-Mar-26,
Dienekes |
| William Morrissey | Ballarat Synthetic
21-Jun-26,
Shay'S Way |
| William Mott | Churchill Downs
26-May-26,
Kapoor |
| William Mullins | |
| William N. Martin | Oaklawn Park
03-May-26,
Bolivia |
| William P Murphy | Roscommon
09-Jun-26,
Revolut Ned |
| William P. McCall Iii | Horseshoe Indianapolis
07-Jun-26,
Extravagant Prince |
| William Pearson | Cannon Park
26-Jul-09,
CHEYENNE KID |
| William Pholi | Aquis Park Gold Coast
19-Dec-20,
Dash for Van |
| William Pribble | Turfway Park
25-Jan-24,
Scarlet Miss |
| William Pugsley | Longreach
13-Apr-26,
Mistrey Emperor |