By Bill Finley
High-profile trainer Robertino Diodoro, who is serving a provisional suspension from the Horseracing Integrity and Welfare Unit (HIWU) after the banned substance levothyroxine was found in his barn at Oaklawn Park, has entered a horse for the April 18 card at Lone Star Park. On opening night, he has entered Master of Disguise (Mastery) in a maiden special weight race with a purse of $33,000.
Diodoro is eligible to race in Texas because the Horseracing Integrity and Safety Authority (HISA) does not have jurisdiction in that state.
Diodoro did not return a phone call from the TDN, but it appears that he will be busy at the Lone Star meet, which concludes on July 14. Diodoro has been allotted 50 stalls, which appears to be the maximum amount allowed by the track's racing department. He has not started a horse since April 3 at Turf Paradise. He was able to run in Arizona after his suspension was announced because the horses had been entered before Diodoro was notified of the violation
Diodoro was provisionally suspended by HIWU on March 29. Though he has been summarily suspended the case must still be reviewed by HIWU's Internal Adjunction Panel. Diodoro also has the option of trying to contest the suspension in court.
Levothyroxine is a thyroid medication. According to the National Library of Medicine the use of thyroid hormones for doping to enhance performance in human sports has long been controversial. There have been claims of abuse of these drugs, but they have not been prohibited by the World Anti-Doping Agency.
The Texas Racing Commission interpreted its state racing rules and concluded that only the racing commission can legally oversee racing in the state and therefore would not allow HISA to come into Texas. Because they are not under HISA's jurisdiction, Lone Star Park and Sam Houston cannot send their simulcast signal out of state.
Diodoro was the leading trainer in 2023 at Oaklawn Park and is currently still in second place in this year's Oaklawn standings. Training since 1995, Diodoro has 3,184 career wins and a winning rate of 21 percent.
A similar scenario is playing out in Louisiana, where trainer Jonathan Wong has begun racing. Wong received a two-year suspension from HIWU after he had a horse test positive for Metformin, a drug that is commonly used by humans to combat type 2 diabetes. Like Texas, Louisiana racing is not under HISA's control. Wong has started eight horses in Louisiana with no winners. He has four horses entered at Evangeline Downs next week and another Saturday night.
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