BICYCLE RACING—MICHAEL HILTNER, 19-year-old Californian, pedaled 50 miles in 2:00.30.7 for U.S. record, Tour of Somerville ( N.J.).
BOATING—HARRY SINDLE, Little Falls, N.J. won three races, placed second twice, third twice in Flying Dutchman trials at Clearwater, Fla., earned right to represent U.S. in Olympics.
BOXING—NEW YORK BOXING COMMISSION, in confusing piece of vacillation, first suspended Sugar Ray Robinson for recent Baltimore no-show, then blithely gave blessing to Friday night's two-state ( New York and Massachusetts) middleweight title bout between Champion Paul Pender and Robinson in Boston. Mused capricious Sugar Ray, perhaps greatest vacillator of his time: "It looks like I will have to take some action." WILLIE PASTRANO, light-punching, nimble-footed Miami light heavyweight, flicked and ran to 10-round decision over frustrated Sonny Ray before lonesome 698 (who paid $822) in Chicago. Onetime Heavyweight Contender Pastrano, a master at art of fleeing from danger in ring, prepared to reverse field, said: "I hope I can catch Archie Moore for a title shot."
CHESS—RAUL BENEDITO, New York, U.S. amateur championship, with 6-0 record, Asbury Park, N.J.
DOG SHOWS—CH. THE RING'S BANSHEE, 2�-year-old basset hound owned by Chris Teeter, Birmingham, Mich. and handled by Frank Hardy, best-in-show (his sixth), Huntingdon Valley (Pa.) Kennel Club.
Ch. Page Mill Tumbleweed, 15-inch beagle hound owned by Dr. and Mrs. Aaron M. Leavitt, Logmeadow, Mass. and handled by Richard Bauer, best-in-show, Ladies' Dog Club, Wellesley, Mass.
FISHING—ELWOOD L. HARRY, ROBERT E. MAYTAG AND W. HARRY PETERS, U.S., boated five fish totaling 2,055 pounds, won Bahamas International Tuna Match, Cat Cay.
GOLF—BARBARA McINTIRE, pretty, dimpled Lake Park, Fla. real estate saleslady, held off rallying Philomena Garvey of Ireland, beat her 4 and 2 at Harlech, Wales to add British amateur title to U.S. crown she won last summer.
Joyce Ziske, Waterford, Wis., shot par 75 on final round for 72-hole total of 299, won Wolverine women's open at Mount Clemens, Mich.
HARNESS RACING—WIDOWER CREED, moved out at opportune time by Driver Howard Beissinger, left crack field behind as favored Caduceus, the New Zealand import, and Bye Bye Byrd faded, equaled world record of 3:04[2/5] for infrequently run 1� miles in $50,000 first leg of three-race International Pace Series at Yonkers ( N.Y.) Raceway.