| William Edwards | Turfway Park
27-Dec-24,
Baytown Kitty Cat |
| William Fires | Oaklawn Park
04-May-25,
Point Blank |
| William G Witherow | Mountaineer
10-Dec-25,
Boccabella |
| William Gallagher | Churchill Downs
03-May-24,
American Maestra |
| 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 | |
| William Haggas | Randwick
05-Apr-25,
Desert Hero |
| William Harris | Turf Paradise
03-Jan-25,
Western Reserve |
| William Harvey | Thurles
27-Nov-25,
Midnight Moonshine |
| William Helmbrecht | Turfway Park
13-Mar-25,
Dr. Bella |
| William Hogan | Delaware Park
21-Sep-24,
Dadashev |
| William Howard | Mountaineer
16-Jun-25,
Sharp Life |
| William I. Mott | |
| William J Hogan Jr. | |
| 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
12-Dec-25,
Our Brave Lini |
| William Lewis | Charles Town
05-Apr-25,
Romantic Warrior |
| William Lewthwaite | Ascot
16-Dec-23,
Long Weekend |
| William Macvittie | |
| William March | Gulfstream
18-Aug-25,
Protest |
| William Martin | Oaklawn Park
04-May-25,
Chica Arma |
| William McDonald | Mountaineer
09-Jul-25,
Uncaptured Faith |
| 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 | Presque Isle Downs
18-Jun-25,
Gea |
| William Morrissey | Sportsbet-Ballarat
08-Dec-25,
Share The Pennies |
| William Mott | Belmont At The Big A
15-Sep-25,
Twirly |
| William Mullins | Del Mar
02-Nov-25,
Ethical Diamond |
| William N. Martin | |
| William P Murphy | Navan
14-Dec-25,
Clonmeen |
| 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 | Thangool
29-Nov-25,
Lasco |
| William R. McDonald | |
| William Renwick | Geraldton
16-Nov-25,
Clever Combat |
| William Smart | Morphettville Parks
24-Aug-13,
Silent Savannah |
| William Souchet | Caen
23-Mar-23,
Jivago De La Cour |
| William Sprague | Taree
28-Feb-10,
In Times Eye |
| William Stinson | |
| William Stinson, Jr. | |
| William Stites | Penn National
07-Feb-25,
Charge That Dress |
| William Straughn | Charles Town
11-Jan-25,
Adios See Ya |
| William Tharrenos | Woodbine
19-May-25,
Coherence |
| William Tourangeau | Assiniboia Downs
21-May-25,
Gallant Oak |
| William Turner | Bendigo
17-Dec-17,
Fortuna's Boy |
| William Wain | Armidale
01-Mar-20,
Spatula |
| William Walden | Aqueduct
06-Dec-25,
Probability |
| William Weeks | Rockhampton
26-Jun-23,
Lingjun Topgun |
| William Witherow | Mountaineer
17-Sep-24,
Zero For Conduct |
| Willie Kee | Penn National
18-Jul-24,
Tohonorstelle |
| Willie Kirkland | Fair Grounds
23-Mar-24,
Gloria's Boy |
| Willie Parker | |
| Willie Parker | Geraldton
15-Dec-25,
Flaming Dragon |
| Willie Simien Jr | Sam Houston Race Park
30-Apr-23,
Sumpns Up |