BRIEFLY : VALHOL DISQUALIFIED, JOCKEY SUSPENDED.

Byline: - Daily News Wire Services

State racing stewards in Little Rock, Ark., disqualified Valhol as winner of the Arkansas Derby and suspended jockey Billy Patin on Wednesday after concluding he carried a banned electrical device during the race.

Stewards ordered that Valhol's $300,000 winner's share of the purse be returned and redistributed. Second-place finisher Certain was declared the winner.

Patin was fined $2,500 and suspended through the end of 1999 - the maximum punishment available to stewards. The three-member panel referred the matter to the Arkansas Racing Commission with the suggestion it extend Patin's suspension through May 5, 2004.

Under rules of the Association of Racing Commissioners International, Patin's suspension will apply not only to Arkansas but to races in all states, steward Leland Seba said.

TENNIS: Carlos Moya kept alive his quest to reclaim the No. 1 world ranking, but Richard Krajicek saw his hopes dashed with a loss to Hicham Arazi at the German Open in Hamburg.

Moya moved into the third round by beating Italian qualifier Marco Meneschincheri 6-3, 7-5. Krajicek was beaten by Arazi 6-4, 7-6 (7-3).

Martina Hingis rolled through her first match at the Italian Open in Rome, routing Natalie Dechy 6-1, 6-1. Hingis next will play American Corina Morariu, who moved into the third round by beating Ruxandra Dragomir of Romania 6-2, 6-3.

BASKETBALL: Dennis Rodman will go on trial Sept. 22 in a civil lawsuit filed by a cocktail waitress who accuses the former Laker of groping her at a Sunset Strip hotel. Susan Patterson sued Rodman in November 1998, alleging he groped her a month before at The Argyle Hotel, said her attorney, Gloria Allred.

The Sparks reduced their roster to 15 by waiving Michelle Reed, who played nine games with the WNBA team last season.

ETC.: Bill Clayton, a Chatham Glenwood High junior, hit three homers in the second inning and threw a no-hitter in the Redskins' 27-2 victory Tuesday over Taylorville High in Taylorville, Ill. According to the National High School Sports Record Book, Clayton become the first high school baseball player to hit three homers in one inning. . . . All-Americans Ossie Antonetti and Ryan Millar are ill and that could derail top-seeded Brigham Young's hopes for its first NCAA men's volleyball championship. Antonetti and Millar missed Wednesday's practice as the Cougars (28-1) prepared for fourth-seeded Penn State (22-12) today in the NCAA tournament's opening semifinal at UCLA's Pauley Pavilion. . . . Former Northwestern running back Dennis Lundy was sentenced to one month in prison and placed on probation for two years for lying to a federal grand jury investigating campus gambling.