Led by horse-of-the-year candidates Groovy, Alysheba, Ferdinand and Theatrical, the pre-entered fields for the Nov. 21 Breeders' Cup races at Hollywood Park were announced yesterday at simultaneous press conferences in Garden City, N.Y., and Los Angeles. A record 106 horses were entered.

The final entries -- 14 horses in each of the seven Breeders' Cup races -- will be announced Nov. 18. Total purses for the seven races will be $10 million.

Eclipse Award-winning trainer Wayne Lukas pre-entered a record 12 horses, including five in the $1 million Breeders' Cup Juvenile Fillies.

Groovy, the leading candidate for sprinter of the year, heads a field of 15 entered in the first race, the $1 million Breeders' Cup Sprint. His main competition is expected to come from Pine Tree Lane, who has been trained by Lukas, but will be sold Saturday.

Lukas' pre-entries in the Breeders' Cup Juvenile Fillies are led by Classic Crown, who is undefeated in two starts. Lukas' other entries -- Blue Jean Baby, Dream Team, Lost Kitty and Over All -- are expected to be highly competitive.

Thirty horses were entered in the $1 million Breeders' Cup Mile, including 12 top European mounts. The Breeders' Cup Turf drew 21, including leading American grass horse Theatrical.

In the $3 million Classic, Skywalker, last year's winner, will face, among others, 1986 Kentucky Derby winner Ferdinand and 1987 Kentucky Derby winner Alysheba.

The 14 starters in each race will consist of the nine horses who have earned the most points in races held throughout the year and five additional starters chosen by a panel of racing secretaries . . .

The Budweiser Million turf race will be held next year at Toronto's Woodbine track, the Ontario Jockey Club announced. The race will take place at the 40,000-seat track only in 1988, while the Million's regular home -- Arlington Park in suburban Chicago -- is being rebuilt. Woodbine was selected over Keeneland Race Course in Lexington, Ky., capacity 28,000.