| William Berrios | |
| William Bourne | Laurel Park
16-Dec-24,
Mister Mitch |
| William Campbell | Delaware Park
06-Jul-25,
Formal Order |
| William Cowans | Horseshoe Indianapolis
09-Jul-26,
Kabin Eight |
| William Cronin | Clonmel
22-Mar-23,
Grace Shelby |
| William D. Cowans | Presque Isle Downs
04-Aug-26,
Les Is Best |
| William Deaton | Gulfstream
14-Jul-24,
Dudefoolingdarling |
| William Dowling | Delaware Park
26-Jul-26,
Unbounded Movement |
| William Downing | Delaware Park
02-Aug-26,
Rags To Lace |
| William Duvall | Turfway Park
25-Jan-25,
Floris |
| William E. Deaton | Gulfstream
14-Jul-26,
Too Much Fun |
| William E. Duvall | Ellis Park
07-Jul-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 | Presque Isle Downs
04-Aug-26,
Sea Runner |
| William E. Straughn | Charles Town
17-Jul-26,
Genuine Gomo |
| William Earl Atkins | Colonial Downs
23-Jul-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
05-Aug-26,
Kaiyas Song |
| William G. Wofford | Colonial Downs
30-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 | Gulfstream
09-Jun-24,
Chaotic Tempo |
| William H. Bartlett | Finger Lakes
14-Jul-26,
Glory Bound Clara |
| William H. Fires | Oaklawn Park
02-May-26,
House Trick |
| William Haggas | Thirsk
01-Jul-26,
York Tower |
| William Haggas | |
| William Harris | Turf Paradise
03-Jan-25,
Western Reserve |
| William Harvey | Roscommon
05-Aug-26,
Midnight Moonshine |
| 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 | Doomben
01-Aug-26,
Trusty Bandit |
| William L. Aylor, Jr. | Charles Town
01-Aug-26,
Super Banker |
| William Lewis | Charles Town
05-Jul-26,
Romantic Warrior |
| 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 | Hamilton
01-Aug-26,
Devoted To You |
| William Mott | Belmont At The Big A
15-May-26,
I Rest My Case |
| William Mullins | |
| William N. Martin | Canterbury Park
12-Jul-26,
Hawks Creek |
| William P Murphy | Roscommon
09-Jun-26,
Revolut Ned |
| William P. McCall Iii | Horseshoe Indianapolis
15-Jul-26,
Punkin Boy |
| William Pearson | Cannon Park
26-Jul-09,
CHEYENNE KID |
| William Pholi | Aquis Park Gold Coast
19-Dec-20,
Dash for Van |