BOATING—Winning his second Mallory Cup in four years, JOHN JENNINGS of St. Petersburg, Fla. won the North American Men's Sailing Championship held on St. John's River in Jacksonville. He totaled 51� points in eight races to edge Clark Thompson of Houston by two points. All eight competitors in the series sailed 17-foot Thistle Class boats.
Mrs. David Larr of Oyster Bay, N.Y. earned her third Adams Trophy and the women's North American sailing title, with 51� points in the eight-race series off Greenwich. Conn. She beat Kate Wilford, of Oxford, Md. by seven points.
BOXING—In his first defense of the world heavyweight title, GEORGE FOREMAN scored a first-round knockout over Jose (King) Roman in Tokyo (page 16).
PRO FOOTBALL—Miami's 23-game unbeaten streak ended in Bloomington, Minn. as Fred Cox kicked a 25-yard field goal at the final gun to give the Vikings, undefeated so far in preseason, a 20-17 victory. Fran Tarkenton came off the bench late in the third quarter to energize a 17-point Minnesota rally, completing 11 of 14 passes for 166 yards. Los Angeles downed San Diego 30-17 (page 22) and Denver held on for a 16-14 win over Buffalo. Quarterback Dennis Shaw guided the Bills back from a 16-point deficit with fourth-quarter scoring passes to Bob Chandler and Randy Jackson and got them near enough for a field-goal try that might have won. But 46 yards proved too much for John Leypoldt, and the Bills lost their fourth straight. Bronco scoring came on three Jim Turner field goals and a 30-yard pass from Charley Johnson to Haven Moses. The Giants continued undefeated, scoring a 42-21 victory over Philadelphia, for their fifth straight exhibition win. Norm Snead passed for two TDs and ran for a third, all in the first half. Randy Johnson assumed Giant quarterbacking duties thereafter, guiding New York to two more touchdowns and Tackle Larry Jacobson picked off an errant Roman Gabriel pass and went 55 yards for another score.
Detroit's Greg Landry connected with Ron Jessie on an 80-yard TD pass, then threw 48 yards to Jessie to set up Errol Mann's game-winning field goal in the final 12 seconds as the Lions beat Cleveland 16-13. Joe Namath completed half his 16 attempted passes for 285 yards as the Jets downed New Orleans 28-17. Rich Caster caught two long bombs from Namath for TDs, while Saint Quarterback Archie Manning was 11 of 16 for 148 yards. Cincinnati rookie Running Back Charles Clark Capped a 65-yard drive with a 15-yard run as the Bengals defeated Atlanta 31-20. Back Doug Dressler widened Cincinnati's lead with a TD after an interception by Linebacker Jim LeClair. A pair of third-quarter touchdowns and Bob Gresham's 153 yards rushing led Houston to a 20-9 win over Baltimore. Pittsburgh handed Green Bay a 30-22 loss and Chicago dropped St. Louis 31-20. The Dallas Cowboys scalped Kansas City 27-16 and Oakland won the "Bay Battle" with a 23-17 victory over San Francisco.
HARNESS RACING—Driven by Ralph Baldwin, Arden Homestead Stable's gelding FLIRTH won the 48th Hambletonian in straight heats, Du Quoin, Ill. (page 20).
The 9-year-old French mare UNE DE MAI ($3.80), driven by Jean-Rene, won a measure of vindication and the $30,000 Challenge Match at Roosevelt by 2� lengths over Spartan Hanover.
HORSE RACING—Braulio Baeza rode TRI JET ($6.60) to victory in the $124,720 Hawthorne Gold Cup at Hawthorne Race Course by five lengths over Golden Don.
MOTOR SPORTS—Driving a three-wheeled motorcycle. CRAIG BREEDLOVE set an unofficial world land speed record for the mile in the motorcycle class at the Bonneville Salt Flats in Utah. Averaging 244.814 mph, he covered the distance in 14.075 seconds. Two days later he set a national acceleration record in the quarter-mile when he went from zero to 377.754 mph in 4.765 seconds. His machine went into a series of spins but Breedlove escaped injury.
TENNIS—The early news at the U.S. Open at Forest Hills was the second-round elimination of ILIE NASTASE, the tournament's co-top seed with Stan Smith. Rhodesia's ANDREW PATTISON beat him in a match interrupted because of darkness, 6-7, 2-6, 6-3, 6-4, 6-4. Twelfth-seeded MARTY RIESSEN, No. 2 singles player on the U.S. Davis Cup squad, was also knocked out in the second round, by ONNY PARUN of New Zealand in straight sets. The No. 4 seed ROD LAVER was upset in the third round, losing to India's 19-year-old VIJAY AMRITRAJ, 7-6,2-6, 6-4, 2-6, 6-4. On the women's side, The Netherlands' BETTY STOVE was dropped by JULIE ANTHONY of Los Angeles, Calif. 6-3, 1-6, 6-4. Temperatures of 95-plus caused FRANCOISE DURR of France to default to SALLY GREER of Miami while leading 7-6, 3-4. Durr complained, "I never felt like this in my life." PANCHO GONZALEZ, probably playing in his last year of singles competition, wowed opening-day fans as he took a first set tie-breaker from No. 7 seed TOM OKKER, but the Dutchman bounced back to beat him 6-7, 6-3, 6-1, 6-4.