| John Guciardo | Presque Isle Downs
16-Sep-26,
St Joe Fury |
| John Gunning | Racing.com Park
01-Mar-18,
Jensgal |
| John H Fulton | Yarra Valley
20-Mar-16,
Got To Be Dancing |
| John Hamilton | Nanango
17-May-25,
Oakfield Comanche |
| John Hammon | Stony Creek
13-Mar-11,
Oscar |
| John Hancock | Ellis Park
02-Aug-25,
Three Coins |
| John Hanneybel | Taree
11-Aug-09,
EIREMAIZE |
| John Haran | Horseshoe Indianapolis
18-Sep-26,
Bout Tree Fiddy |
| John Hassett | Cork
25-Jul-26,
Dash Of Colour |
| John Hayes | Bellewstown
05-Jul-25,
Abiding Star |
| John Hearne | Miles
07-Feb-26,
Casino Cat |
| John Heath | Wodonga
17-Aug-26,
Broken Image |
| John Heelan | Mackay
05-Jun-25,
Ilios |
| John Henry Prather, Jr. | Oaklawn Park
01-May-26,
Miri A Coincidence |
| John Hickmott & Carrina Riggs | Balaklava
16-Sep-26,
Magnetic Edge |
| John Higgins | Grafton
19-Jul-26,
Finding Elle |
| 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 | Beaudesert
17-Sep-26,
Holy Steps |
| John Holgate | Goulburn
10-Nov-12,
Milbrodale |
| John Howard | Warrnambool
11-Nov-24,
Walkabout Lady |
| John Hubbard | Ipswich
27-Aug-26,
Bee Exact |
| John Hughes | Lismore
21-Sep-17,
Bon Leanga |
| John Hyam | Morphettville Parks
19-Sep-26,
La Perentie |
| John I. Pimental | Colonial Downs
07-Sep-26,
Maggies Brew |
| John Ivory | |
| 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 | Laurel Park
20-Sep-26,
Vekomamona |
| John Johnston | Beaudesert
17-Sep-26,
Lord Danilo |
| John Keane | Bairnsdale
20-Sep-26,
Wind Dreamer |
| John Keys | Launceston
16-Sep-26,
The Wizard King |
| John Kiernan | Wanganui
22-Feb-26,
Headline News |
| John Kiernan & Charlotte Fulford | Tauherenikau
03-May-26,
Dancing Fantail |
| John Kilroy | Townsville
08-Sep-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. Hall | Remington Park
30-Aug-26,
Golden Rebal |
| John L. Langemeier | Horseshoe Indianapolis
12-Sep-26,
Eltinge |
| John Ladner | Fair Grounds
05-Feb-24,
Lord Help Me |
| John Langemeier | Horseshoe Indianapolis
18-Sep-26,
Lookout Kid |
| 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 | Sale
21-Aug-26,
Lady Puissance |
| 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
20-Sep-26,
Military Action |
| John Lundholm | Narromine
12-Dec-11,
Mistress Murphy |
| John Luttrell | Launceston
16-Sep-26,
Sir Jag |
| John M Fitzgerald | Gatton
10-Jun-22,
Gertie |
| John M Fleming | Gold Coast
05-Nov-11,
Scherzinger |