HORSE RACING—KELSO ($2.30), guided by Ismael Valenzuela, finished four lengths ahead of Guadalcanal to win the $108,900 Jockey Club Gold Cup at Aqueduct for the fourth successive year.
Claiborne Farm's DUEL ($9.40), ridden by Steve Brooks, was the surprise winner in the Breeders' Futurity at Keeneland, as previously undefeated Golden Ruler, the 1-to-2 favorite, finished fifth.
As expected, W. H. Perry's 3-year-old filly, LAMB CHOP, with Manuel Ycaza in the saddle, decisively won the $69,725 Spinster Stakes at Keeneland, by 11 lengths.
With the Irish Sweepstakes riding on its outcome, the Cambridgeshire Stakes was won by COMMANDER IN CHIEF, a 100-to-7 shot, by a neck over American-owned Principal, at Newmarket, England.
E. P. Taylor's CANEBORA ($2.80), ridden by Manuel Ycaza, won the 1�-mile Breeders' Stakes at Woodbine ( Ont.) to earn the Canadian Triple Crown (he had already taken the Queen's Plate and the Prince of Wales Stakes).
MOTOR SPORTS—DAVE MacDONALD of El Monte, Calif. took his second international race in seven days when he drove his Ford-engined Cooper-Cobra to victory in the 192-mile Pacific Grand Prix for sports cars in Monterey, Calif.
OLYMPIC GAMES—The International Olympic Committee, meeting in Baden-Baden, Germany, chose MEXICO CITY as the site of the 1968 summer Olympic Games. Michigan Governor George Romney led the U.S. bid by Detroit, but despite campaigning by more than 60 U.S. delegates, five tons of promotional material, and a filmed plea by President Kennedy, Detroit lost its eighth try in 27 years.
MILEPOSTS—DIED: Golfer HORTON SMITH, 55, who collapsed while watching the recent Ryder Cup matches, of Hodgkin'S disease in a Detroit hospital. He had devoted his life to golf—as a player (considered the best putter in the game, he won 33 major tournaments in 37 years as a professional); as an administrator ( PGA president 1952-1954); and as an instructor (head pro at the Detroit Golf Club since 1946). Smith won the Masters twice (the 1934 inaugural and 1936) and played on three Ryder Cup teams (1929, 1933, 1935) without losing a match.
DIED: Johnny Gutenko, better known as KID WILLIAMS, 69, the world bantamweight champion from 1914 to 1917, at his home in Baltimore.
DIED: AGESILAO GRECO, 97, a professional fencing master who was unbeaten in a quarter-century of world competition, of pneumonia in Rome, Italy.