Laurel racing officials next week will request Maryland Racing Commission approval to simulcast all seven Breeders' Cup races Nov. 21 after running eight live races beginning at 11 a.m.

Track president Frank De Francis said the decision to simulcast the entire Breeders' Cup card from Hollywood Park in Inglewood, Calif., followed patrons' complaints last year, when Laurel entwined three Breeders' Cup races with nine of its own.

"The complaints centered around two areas," De Francis said. "One, that we didn't show all of the Breeders' Cup races, and two, that in certain instances fans weren't getting enough time to wager."

With the 11 a.m. post time, Laurel officials plan to conclude the final live race by 2 p.m., with no less than 23 minutes between races; the first Breeders' Cup race is scheduled for 2:14 (EST).

"That's the only race that could give us a bit of a problem," De Francis said.

Tom Manfuso, Laurel vice president, said, "It takes 15 to 16 minutes to get the horses over to the paddock, saddled and out on the track. What's shorter will be the post parade."

The commission is expected to honor Laurel's request. Desormeaux-Watching

Jockey Pat Day is riding full-time at Churchill Downs in Louisville, but his vacation plans are tied to events at Laurel.

Day, the nation's most victorious jockey last year, currently is second to Maryland's Kent Desormeaux, 383 wins in 1987. About 20 victories behind, Day appears to have some work ahead of him.

"It has been my custom in the past to take off the month of December," Day said. "But if I had an opportunity to be the leading rider for the year, I'd reconsider. If it's virtually impossible to catch him, I'll take the month off."

In 19 racing days at Laurel, Desormeaux already has a commanding lead. With 36 winners, his closest pursuer is Allen Stacy with 13. Parenti Suspended

Jockey Jerry Parenti Jr. has been suspended after testing positive for controlled substances.

Chief steward Clinton Pitts Jr. declined to say why Maryland's racing stewards requested the test. "All you need is probable cause," Pitts said.

Parenti, 21, must undergo counseling and rehabilitation before he is eligible for reinstatement . . .

Banker's Jet, a multiple stakes winner, was made 121-pound highweight and 3-to-1 overnight favorite for today's $40,000-added Sports Palace Handicap at Laurel.