BOATING—MISS SUPERTEST III, piloted by Canada's Bob Hay ward, international Harms-worth Trophy for unlimited hydroplanes at Detroit. Withdrawn on last laps because of mechanical-failure: Maverick, piloted by Bill Stead of U.S. Two days later Maverick won 14th running of Silver Cup race at Detroit. Withdrawn because of other commitments: Miss Supertest III.
Jerry Jenkins, Grosse Pointe, Mich., U.S. Thistle sailing title, at St. Petersburg, Fla.
BOXING—HENRY COOPER, 5-round TKO over Gawie De Klerk to retain British Empire heavyweight title, Porthcawl, Wales.
Roy Harris, 10-round decision over Joe Bygraves, heavyweights, Houston.
Tony Anthony, 8-round KO over Bob Young, light heavyweights, East Providence, R.I.
FOOTBALL—CHICAGO BEARS 54, Pittsburgh Steelers 17, exhibition, Houston.
New York Giants 38, Detroit Lions O, exhibition, Detroit.
Los Angeles Rams 34,, Chicago Cardinals 21, exhibition, Los Angeles.
Baltimore Colts 23, Washington Redskins 10, exhibition, Baltimore.
GOLF—GENE LITTLER, $35,000 Miller Open, with 265 for 72 holes, Milwaukee.