| John Hill | Churchill Downs
22-May-26,
Cocoa Nimbus |
| John Hine | Armidale
23-Nov-13,
Elliemac |
| John Hirdes | Fair Grounds
17-Jan-25,
Come On Come On |
| John Hogan | Racing.com Park Synthetic
10-Oct-16,
Sheer Magic |
| John Holcombe | Sunshine Coast
26-Jul-26,
Loken |
| John Holgate | Goulburn
10-Nov-12,
Milbrodale |
| John Howard | Warrnambool
11-Nov-24,
Walkabout Lady |
| John Hubbard | Warwick
04-Aug-26,
Bee Exact |
| John Hughes | Lismore
21-Sep-17,
Bon Leanga |
| John Hyam | Morphettville Parks
06-Jun-26,
La Perentie |
| John I. Pimental | Colonial Downs
01-Aug-26,
Derby Effort |
| John Ivory | Del Mar
27-Jul-26,
Mperfection |
| John J Maguire | Punchestown
26-Nov-23,
Party Rocker |
| John J Roberts | Geelong
23-Aug-24,
Jimmy Odd Sock |
| John J. Manning, Jr. | Churchill Downs
07-Jun-26,
Willowy |
| John J. Robb | Colonial Downs
03-Aug-26,
Make It Quick |
| John Johnston | Sunshine Coast
02-Aug-26,
Half Moon Roo |
| John Keane | Bairnsdale
04-Aug-26,
Wind Dreamer |
| John Keys | Devonport Synthetic
26-Jul-26,
Happy Clan |
| John Kiernan | Wanganui
22-Feb-26,
Headline News |
| John Kiernan & Charlotte Fulford | Tauherenikau
03-May-26,
Dancing Fantail |
| John Kilroy | Townsville
01-Aug-26,
Very Good |
| John Kimmel | Aqueduct
15-Feb-26,
Combat Mission |
| John Kirby | Aqueduct
04-Jan-25,
Tricolour |
| John Kluske | Balaklava
30-Oct-13,
McLaren Overture |
| John Knight | Wangaratta
24-Jan-12,
Penny Precious |
| John L Johnston | Sunshine Coast Poly
24-Jun-25,
Side Show Sally |
| John L Morrison | Moruya
26-Apr-24,
Terreur Magique |
| John L. Langemeier | Horseshoe Indianapolis
31-Jul-26,
Spooky Ridge |
| John Ladner | Fair Grounds
05-Feb-24,
Lord Help Me |
| John Langemeier | Horseshoe Indianapolis
08-Nov-24,
Secret Savior |
| John Latham | Ascot
25-Apr-23,
Thewayiwalk |
| John Law | Moruya
18-Jan-16,
Four Fortyfour |
| John Leblanc | Fair Grounds
17-Dec-23,
Caeus In Pasadena |
| John Leek Jnr | Sandown Lakeside
02-Aug-26,
Blue Bandit |
| John Leeson | Monmouth Park
13-Aug-23,
Winsor Manor |
| John Lewis | Horseshoe Indianapolis
04-Sep-24,
Taters Real Secret |
| John Lillie | Sportsbet-Ballarat Synthetic
27-May-19,
Youl Be Good |
| John Lugg | Kalgoorlie
26-Jul-26,
Vomo Island |
| John Lundholm | Narromine
12-Dec-11,
Mistress Murphy |
| John Luttrell | Devonport Synthetic
26-Jul-26,
Volkanovski |
| John M Fitzgerald | Gatton
10-Jun-22,
Gertie |
| John M Fleming | Gold Coast
05-Nov-11,
Scherzinger |
| John M Harney | Dundalk
20-Nov-25,
Pure Granite |
| John M. Allred | Turf Paradise
02-May-26,
Lewie Jones |
| John M. Swygart | |
| John Macmillan | Morphettville Parks
01-Aug-26,
Sioux Warrior |
| John Malik | Aquis Beaudesert
25-Apr-23,
Better Mint |
| John Manzelmann | Twin Hills
27-Sep-25,
Mishani Wolf |
| John Markovic | Geelong
14-Mar-26,
Leica Rock |
| John Marzol | Wagga
17-Mar-22,
Child Of Mine |
| John Mason | Matamata
10-Oct-20,
KIPLING |
| John Mason | Kalgoorlie
20-Oct-24,
Master Platinum |
| John Mattine | Woodbine
17-May-25,
Scary Boo |
| John McArdle | Geelong
31-Jul-26,
Winston |
| John McArthur | Terang
28-Feb-25,
Emrys |
| John McCaslin | Penn National
26-Oct-24,
Sharp Sensation |
| John McGregor | Kerang
26-Dec-10,
Aussietilla |
| John Mcguckin | Bunbury
01-Jan-19,
Count Jinsky |
| John McKee | Charles Town
05-Jan-23,
My Phoenix |