John O. Hertler, Date of Birth, Place of Birth
TweetJohn O. Hertler
American horse trainer
Date of Birth: 17-Sep-1950
Place of Birth: Ridgewood, New York, United States
Profession: horse trainer
Nationality: United States
Zodiac Sign: Virgo 
About John O. Hertler
- John O.
- Hertler (born September 17, 1950 in Ridgewood, Queens) is an American Thoroughbred horse trainer.
- He was fifteen years old when he began working for Hall of Fame trainer Phil Johnson with whom he remained for thirteen years.
- In 1978 he went out on his own, training horses he purchased as well as for others.
- John Hertler trained Ballindaggin, who won the inaugural running of the Molson Export Challenge (Woodbine Mile) in 1988 and Slew the Dragon who won the 1988 Hollywood Derby.
- He has twice won the Ashley T.
- Cole Handicap in 1999 and 2006.
- However, he is best known as the trainer of the Eclipse Award winner and Hall of Fame colt, Slew o' Gold.
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