ELMONT, N.Y. – The Breeders’ Cup World Championships are still six weeks away, but trainer Todd Pletcher certainly had that series of multi-million dollar races on his mind Saturday morning when putting several of his prospects through workouts at Belmont Park.

Pletcher worked a plethora of his prospective Breeders’ Cup starters, but when working his impressive debut winner Uncle Mo five furlongs in company with two other juveniles, it was with the idea of him having ready to face a large field in the BC Juvenile at Churchill Downs on Nov. 6.

MIAMI - Four horses who had been under quarantine at Calder Race Course have tested positive for Equine Piroplasmosis, according to a report received from the Florida state veterinarian’s office.

Track officials confirmed on Saturday that all four horses have been euthanized. The four horses were trained by Giuseppe Iadisernia.

Equine Piroplasmosis is a blood-based infectious disease that can be spread by ticks. Symptoms of the disease range from acute fever, lack of appetite and malaise, to anemia and jaundice, and sudden death.

POMONA, Calif. – Martin Pedroza was scheduled to resume riding Saturday at Fairplex Park. With top mounts in the final three days of the Los Angeles County Fair meet, his bid to break the meet record for wins (51) could be within reach Monday, closing day.

It hardly seemed possible at the start of the final week of racing. The all-time leading rider at Fairplex, Pedroza blanked Wednesday for the first time at the meet, then was sick with a stomach bug and did not ride Thursday.

The Remington Park meet in Oklahoma City is experiencing significant increases in handle on its live races a third of the way into its 65-date Thoroughbred meet, according to track officials.

Handle on Remington’s races at its off-track sites is averaging $558,528 a card 20 nights into the meet, a 33 percent increase from an average of $420,188 a card through the corresponding period in 2009. Remington is handling another $83,093 a night on its live races ontrack, up 8 percent from the average $76,675 a card in 2009.

INGLEWOOD, Calif. – Zenyatta worked six furlongs in 1:13.80 on Saturday at Hollywood Park, the final workout before the 6-year-old mare will seek to extend her unbeaten streak to 19 races in the $250,000 Lady’s Secret Stakes next Saturday.

Lookin At Lucky is scheduled to be flown Wednesday on a Fed Ex flight from his Southern California base to Hoosier Park in suburban Indianapolis to run Saturday in the Grade 2, $500,000 Indiana Derby.

Trainer Bob Baffert said Lookin At Lucky, the leading candidate for top 3-year-old honors in 2010, was to have his final pre-race workout, probably at five furlongs, Sunday morning at Hollywood Park.

ALTOONA, Iowa – Trainer Glen Atkison capped off his Prairie Meadows Quarter Horse meet with a hat trick, including a win with Joezoom in the $143,250 Valley Junction Futurity.

Joezoom ($21.40), the second fastest qualifier in the race broke quickly under Jarrod Deschamp, and stayed straight and and strong to prevail over nine others by a convincing length and a quarter. The final time of 17.49 for 350 yards was earned him a 100 speed index.

Atkison also won a starter allowance and a claiming race on the card.

Until this past May, Elusive Gift had not raced on turf in nearly two years, when he was still a maiden after three starts. Two years ago is also the last time the New Zealand import Towzee won a race.

Three weeks ago, however, the prospects for both turf sprinters suddenly improved when they were involved in a blanket finish in the $250,000 Turf Monster Handicap to finish within 1 1/2 lengths of the multiple stakes winner Chamberlain Bridge, a Breeders’ Cup Sprint candidate.

Lisa’s Booby Trap returned to Finger Lakes for what was supposed to be a confidence builder following a failed one-race experiment on turf. But the locally based 3-year-old Lisa’s Booby Trap, who began her career by winning four consecutive races, struggled to finish third in a field of five fillies and mares in a no-conditions allowance race on Friday’s card.

Hawthorne Race Course will launch its fall meeting Friday, 119 years after the track near Chicago opened its doors for the first time. Things are likely to run much smoother than they did that first season.

Just weeks after the May 20, 1891, opener, rivals quickly built a new grandstand at nearby Garfield Park and went head to head with Hawthorne.