Split samples still pending in Toby Keeton drug case, Belmont TV audience dips

Belmont Stakes television drew 3.7 million viewers on FOX and peaked near 4.7 million, a softer audience than the Kentucky Derby and Preakness but still the day’s biggest racing window at Saratoga Race Course. With no horse chasing a Triple Crown sweep for the eighth consecutive year, the 158th Belmont ran at 7:04 p.m. ET as part of the FOX and FS1 Belmont Stakes Racing Festival package, and the betting story moved in the opposite direction from the TV audience: non-CAW wagering increased even as viewership slipped.

Toby Keeton’s drug case remains locked in the kind of delay that keeps horsemen, bettors and regulators guessing. Nearly two years after the 2024 Lone Star Park fall meet, split-sample testing still had not been completed in Texas or New Mexico on the carmoterol positives tied to 23 horses in his barn, leaving one of Quarter Horse racing’s most successful trainers in a prolonged dispute over sanctions. The Texas Racing Commission first suspended Keeton for 16 years and fined him $80,000 in March 2026, then amended the ruling in April to a total 64-year suspension and a $535,000 fine. Until the split samples are finished, the practical effect is straightforward: the penalty remains clouded by unfinished science, and the case continues to cast a shadow over entries, eligibility and confidence in the program.

The health side of the sport is pushing in a different direction, but for the same reason, to keep racehorses safer and more reliable on the track. Atrial fibrillation is the most common clinically important cardiac arrhythmia in equine athletes, and it can lead to collapse or sudden death. It has been found in about 0.3% of horses in the general population and in as many as 5% of racehorses, which is why researchers are looking at ketodoxapram as a possible field treatment and why pre-race cardiac auscultations were introduced at the 2026 Breeders’ Cup World Championships to catch arrhythmias earlier.

That backdrop only sharpens the anticipation around Flightline’s first crop. The unbeaten Horse of the Year from 2022, who retired with a six-race record, was set to get his first North American runners at Churchill Downs this week, with Greenwell scheduled to debut in a Friday maiden special weight for Mark Casse and House Boat Party the following day for Brian Lynch. House Boat Party will be the first Flightline filly to start in North America, giving the sport an immediate bloodlines storyline with stakes implications before the summer even settles in.