BALTIMORE, SEPT. 19 -- In a span of two hours today, trainer Bill Boniface equaled his victory total for the first 52 days of Pimlico's meeting. His second of three winners on Maryland Million Day produced a $35.40 mutuel and rendered owner/breeder/sportscaster Jim McKay hoarse.

"I'm glad I'm not working today," McKay said, grasping his throat. "The voice is gone."

McKay, the Maryland Million's founder, had just witnessed the arrival of his first stakes winner, Sean's Ferrari, in the $100,000 Business Express Maryland Nursery for 2-year-olds. The Boniface-trained colt, flawlessly ridden by Hall of Famer Laffit Pincay Jr., edged past King's Snow, the day's biggest favorite at 2 to 5, in the final quarter-furlong to win by a head.

The payoff reflected the improbable outcome to an implausible story. Sean's Ferrari had bucked his shins in his first-race victory at Delaware Park, but made a speedy recovery; Boniface, only three for 44 this Pimlico meeting, phoned Pincay's agent three times before coaxing the reluctant jockey to ride at Pimlico today; Salutely, the winner's sire, injured two of Boniface's stablehands and was taken to Virginia the year after Sean's Ferrari was conceived, making that crop ineligible for the Million; and McKay, with his first homebred in his first stakes race, ended up in the winner's circle on a day he designed to benefit not himself but Maryland's breeding and racing industry.

"You can't understand the feeling," said McKay, who breeds and races horses under his given name, James McManus. "Nobody can."

McKay gave a play-by-play account of how the horse got its name. "Since he was 8 years old, Sean, my son, has been bugging me to buy a Ferrari," he said. "And he still does at 32 years old. And I consistently say, 'No. Where are we gonna drive it on American roads?' A couple of years ago he was down on the farm, and we were looking at a couple of babies, and {wife} Margaret said, 'See the baby with the white blaze, Sean? That's your Ferrari.' "

Today, with Pincay driving, the McManuses enjoyed a $60,000 payday. Pincay, for all his uncertainty over today's program, was astride each of Boniface's winners, earning $21,000 in about five minutes of racing.

McKay was covering the British Open when Sean's Ferrari won his debut, but he saw the colt's other start, a fifth-place allowance finish at Pimlico. "Bill {Boniface} told me he'd probably be a little short in that race," McKay said, "but that he'd be ready today."

"After he bucked his shins, I had to back off him completely for eight weeks," said Boniface, who won the 1983 Preakness with Deputed Testamony. "He ran up to second at the sixteenth pole in his next race before he got tired. So he got out of it what I thought he needed."