BRIEFLY : SILVERBULLET DAY WINS IN ALABAMA STAKES.

Byline: - Daily News Wire Services

The beaten-favorite jinx in the Alabama Stakes was trampled Saturday under the flying hooves of Silverbulletday at Saratoga.

The 4-5 betting choice simply ran away from six rivals in Saratoga Springs, N.Y., as she became the first favorite to win the Grade I stakes for 3-year-old fillies since Sky Beauty in 1993. Four of the beaten favorites in the five previous runnings of the Alabama were odds-on. The other was even money.

Enjoy the Moment, ridden by David Flores, enjoyed a 2-1/2-length wire-to-wire win in the $150,000 Rancho Bernardo Grade III Handicap at Del Mar. The winner earned $90,000 for the win, her ninth in 14 starts.

BOXING: Bantamweight Clarence Vinson, welterweight Larry Mosley and light flyweight Brian Viloria - all U.S. national champions - won first-round bouts at the World Amateur Boxing Championships in Houston.

TENNIS: Second-seeded Monica Seles defeated Anne Gaelle-Sidot of France 6-3, 6-4 in the semifinals of the du Maurier Open in Toronto to advance to the finals against world No. 1 Martina Hingis, who beat third-seeded Mary Pierce 7-6 (7-3), 6-3.

Top-seeded Yevgeny Kafelnikov beat Nicolas Kiefer 6-2, 2-6, 6-3 and Andre Agassi stopped Todd Martin 6-4, 6-2 to set up the final of the Legg Mason Classic in Washington, D.C.

Vincent Spadea survived a marathon match with Sebastien Grosjean 6-3, 6-7 (4-7), 7-6 (7-4) and Nicolas Lapentti cruised past Jan Siemerink 6-4, 6-2 to reach the finals of the RCA Championships in Indianapolis.

COLLEGES: Bo Schembechler, who coached football at Michigan for 20 years, abused and humiliated his players and stepsons, a former player writes in a magazine article.

``Bully Bo,'' written by ex-player Elwood Reid, appears in the September issue of ``Gentleman's Quarterly,'' which is to appear on newsstands Tuesday. Reid was approached about writing the article by Schembechler's youngest stepson, the Ann Arbor News reported.

Montana State-Billings athletic director Mike Swan said he has been hired as athletic director at Humboldt State.

South Carolina guard Kevin Rivers will likely miss the rest of the season after injuring his knee in practice.

BASKETBALL: The Detroit Pistons have proposed trading forwards Jerry Stackhouse and Loy Vaught and a first-round draft pick to the Vancouver Grizzlies for five players, including Steve Francis and Doug West, according to the Oakland Press of Pontiac.

In addition to guards Francis, the second overall pick in this year's draft, and West, the Pistons would receive forward Michael Smith and guards Lee Mayberry and Rodrick Rhodes, the unidentified Piston sources told the newspaper.

The WNBA Cleveland Rockers fired head coach Linda Hill-MacDonald and assistant Susan Yow following the team's 66-56 home victory over New York.

ETC: Mike Pawlawski threw seven touchdown passes as the host Albany Firebirds beat the Orlando Predators 59-48 in the Arena Football championship. . . . Reigning Olympic and world champion Cuba beat Italy 3-1 in the Philippine leg of the 1999 World Women's Grand Prix Volleyball. . . . Carol Sing, a retired swimming coach from El Cajon, completed her 21-1/2-mile swim across the English Channel after battling sea sickness and cold, choppy water for more than 12 hours.