Several trainers based at Gulfstream Park allege that earlier this year, horses who were sent off at low odds for their respective races at the track had been illegally administered Lasix the night before without their knowledge, leading to a string of poor, beaten performances if the horses weren't already scratched.Details around these alleged incidents, and the extent of the ongoing investigations into them, remain hazy.According to Bill Badgett, executive director of Florida operations for The Stronach Group (TSG), investigators for the Horseracing Integrity and Safety Authority (HISA) tested a horse trained by Bruno Tessore which had allegedly been involved.In July, a ten-second black and white nighttime video clip dated July 17 circulated on the social media platform X (formerly Twitter) purporting to be taken within Bruno Tessore's barn. The video shows an individual with a backpack enter a horse's stall. The video stops before any other details are shown.“HISA came in and took blood tests on that particular horse, and all the results came back negative,” said Badgett on Wednesday.Neither Gulfstream Park management nor a representative of the Horseracing Integrity and Welfare Unit (HIWU) disclosed the name of the horse tested. The TDN has independently confirmed the horse in question was the Tessore-trained Holy Cow (Catholic Boy), who was entered to run on July 18 but was scratched before the race.Reached via text, Tessore said he'd prefer not to comment on the matter.The TDN has spoken with several other trainers with horses stabled at Gulfstream Park who believe multiple horses between them had been administered a substance by someone without their knowledge the night prior to their scheduled race.The trainers speculated that the horses had been administered Lasix (meaning they would have been administered a double dose of the drug before running which could render them flatter than usual), though they stressed how this was conjecture at this time.The trainers all asked for anonymity for fear of reprisal for speaking out.The trainers detailed a similar set of circumstances, including how the horses in question were all heavily bet for their respective races.They described how the grooms checked on the horses on the morning of the races and found the water buckets empty and the horses unusually quiet. One trainer described seeing an excessive amount of liquid on the stable floor.In some cases, the individuals tending to the horses observed swelling or bumps on the horses' necks, indicating a potential injection, some of trainers said.Three of the trainers provided TDN with the names of four separate horses and the races in which they performed badly. The first races date back to early May. Another three horses were scratched before running, according to the three trainers.Among the four who ran, three were favored and all three finished out of the money. The fourth was the second choice in the wagering and finished second at odds of 17-10.The TDN reviewed the results of those four races and could not find any obvious signs, such as suspiciously low exacta or trifecta payoffs, that would indicate a betting coup.One trainer told the TDN that after his filly was beaten and pulled up to return home, the jockey subsequently told him the horse could barely raise a trot.Several trainers have recently installed cameras around their Gulfstream Park barns.When asked about other trainers who believe their horses had been “nobbled” in this manner, Badgett dismissed the allegations.“Personally, I think it was a one-time occurrence. These other trainers, as soon as these horses ran bad, they started thinking somebody had got to these horses which is not the case,” he said.When asked for specific details about the nature of the investigation the track has pursued into the alleged incidents, Badgett referred the TDN to the track's director of security, “Doogie” Rodriguez.When reached Thursday to discuss the matter, Rodriguez referred the TDN to Tiffani Steer, a TSG spokesperson.“Several months ago, Gulfstream Park received a complaint from Bruno Tessore alleging that an unauthorized individual had entered one his stables. Per protocol the horse in question was scratched from racing the following day and subsequently tested by HIWU veterinarians for substances, including Lasix. All testing was returned negative. Gulfstream Park has worked in full cooperation with HIWU, and the matter has been investigated. No other complaints of this nature have been reported,” wrote David Duggan, Gulfstream Park's general manager, in a written response to follow-up questions.Lasix is typically detectable in the blood at the recommended dose up to 48 hours after administration.TDN also reached out to representatives for HISA and HIWU for comment about the status of their investigations into the matter.“HIWU is aware of the video circulated in July of an individual going into a stall at Gulfstream Park, and we have been in communication with Gulfstream regarding the video. HIWU's investigation is ongoing, and there are no updates to share at this time. Any potential Anti-Doping and Medication Control Program rule violations arising from this investigation will be shared on the HIWU website as per HISA's public disclosure requirements,” wrote HIWU spokesperson, Alexa Ravit, in response to a series of questions.The post Gulfstream Park Trainers Allege “Nobbling” Scheme Behind Poor Performances By Short-Priced Horses appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.