NASCAR Convertible Circuit, Memphis, Tenn.
[NETWORK RADIO] Milwaukee vs. Cincinnati, Milwaukee, 2 p.m. (Mutual*). (For the remainder of season, Mutual will select its broadcasts daily as NL race dictates.)
Rogers Memorial trophy, unlimited hydroplanes, Washington, D.C.
World championship 800-kilo motorboat class, Lake Lugano, Italy.
Peter Mueller vs. Charley Humez, heavyweights (10 rds.), Dortmund, Germany.
[TV]Baltimore vs. Washington (preseason game), Baltimore, 2 p.m. ( CBS-TV).
Class A National Hillclimb championship, Laconia, N.H.
Hamilton vs. Philadelphia, Philadelphia.
Track & Field
AAU 25-kilometer championship walk, Clifton, N.J.
AAU 50-kilometer championship walk, Baltimore.