HARNESS RACING-TIMOTHY T. ($6), driven by John Simpson Jr., won the $101,469 Realization Trot at New York's Roosevelt Raceway in 2:11. Neither driver nor horse had gone the 1[1/16]-mile distance before, but they had combined last season to take the Hambletonian, Colonial and Kentucky Futurity. Gunner finished second, three-quarters of a length behind.
HORSE RACING—BOLD REASON ($4.20), Laffit Pincay up, gained his fifth consecutive victory in the $138,200 American Derby in Chicago by half a length over Mr. Pow Wow.
Chevron Flight ($6.60) earned his fourth stakes victory of the year by taking the $117,550 Sapling Stakes at Monmouth Park, N.J. The 2-year-old chestnut colt, with Martin Fromin riding, finished a head in front of Chauffeur over a rain-soaked six furlongs.
Run the Gantlet ($22), the only 3-year-old in the field, won the $61,000 Tidal Handicap at Aqueduct by four lengths over Royal Harmony.
Over the counter ($34.20), a 7-year-old brown gelding ridden by Jerry Lambert, beat favored Cougar II by half a length to take the two-mile, $138,150 Sunset Handicap at Hollywood Park.
PAN-AMERICAN GAMES—PAT MATZDORF, pending world record holder in the high jump, won the first gold medal for the U.S. with a leap of 6'10�" shortly before midnight on the opening day of competition in Cali, Colombia. FRANK SHORTER followed with a first place in the 10,000-meter run. ARGENTINA earned the first three golds in rowing: the fours with coxswain, the pairs without coxswain and the single sculls, won by world champion Alberto Demiddi. CARMEN ROMERO of Cuba set a Pan-Am record in the women's discus with a winning toss of 187'8".
SAILING—BILL SHORE of the Buffalo Canoe Club won the World Lightning Class Championships in Helsinki by finishing third in the final race. Shore had taken a second, third and first in the previous races.
SKIING—The U.S. Olympic squad dominated the Australian Championships at Mount Buller as HANK KASHIWA of Old Forge, N.Y. won the slalom and giant slalom.
TENNIS—EVONNE GOOLAGONG acquired her third major European title in two months, by defeating Sweden's Christine Sandberg 8-6, 6-3 in the Dutch Open in Hilversum.
Mrs. Billie Jean King of Long Beach, Calif. won the women's singles title at the Austrian International Championships in Kitzb�hel, over Laura Roussow of South Africa 6-2, 4-6, 7-5.